JP4229014B2 - Fast connection terminal device - Google Patents

Description

  The present invention relates to a quick connection terminal device.

  2. Description of the Related Art Conventionally, in a wiring device such as a switch or an outlet, a quick connection terminal device is widely used to connect an electric wire introduced into a container through an electric wire insertion hole provided in the container. This type of quick connection terminal device is well known in the art, and the electric wire (conductor) is sandwiched between the terminal plate and the terminal plate electrically connected to the contact of the switch or the blade holder of the outlet, etc. The terminal block is electrically connected to the lock spring that locks the wire to prevent it from coming off, and the tool is operated by a tool such as a screwdriver through the operation hole in the body to release the lock by the lock spring. It is comprised by the cancellation | release button (for example, refer patent document 1).

  However, in the above-mentioned conventional example, when the electric wire connected to the quick connection terminal device is removed, the operator holds the body of the wiring apparatus with one hand and operates the release button with the tool held in the other hand. Then, since both hands are blocked, it is difficult to pull out the electric wire from the electric wire insertion hole.

  Therefore, the present applicant provides a release button that is movably accommodated in the body with an operation part that protrudes forward and backward from a groove that penetrates the body side of the wiring device, and is exposed to the side of the body through the groove. The release button moved with respect to the body when the operating part is pressed with the finger is used to release the lock by the lock spring, and the holding of the body and the operation of the release button are performed simultaneously with one hand, Has already proposed a quick-connection terminal device that can pull out an electric wire with a hand (see Patent Document 2).

In the conventional example described in Patent Document 2, when the electric wire is not connected, the operation part of the release button protrudes from the side of the container through the groove. However, when the electric wire is connected, the release button moves and passes through the groove. Since the operation part is housed in the container and does not protrude from the side of the container, the connection completion display of the electric wire is performed depending on whether or not the operation part protrudes from the side of the container.
Japanese Patent Laid-Open No. 11-185905 (paragraph 0014, FIG. 1) Japanese Patent Laying-Open No. 2004-63163 (paragraphs 0029 to 0030, FIG. 21)

  However, in the latter conventional example, since the operation part is housed in the container and does not protrude from the side of the container in the connected state of the electric wire, the operation part must be operated to be pushed into the groove when releasing the connection of the electric wire. In other words, there is a problem that it is difficult for an operator with a large hand to operate the operation unit.

  The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a quick connection terminal device in which the operability of the release button is improved while displaying the completion of connection of electric wires.

In order to achieve the above object, the invention according to claim 1 is a terminal plate that comes into contact with an electric wire introduced into the container through an electric wire insertion hole provided in the container of the wiring device, and the terminal using a spring force. A connecting means for holding the electric wire between the plates and preventing the locking part from biting into the electric wire and preventing the electric wire from being removed; and a releasing means for releasing the state of preventing the electric wire from being disconnected by the connecting means. A spring piece formed by a metal plate having a substantially U-shape and freely deflectable in a direction intersecting with the introduction direction of the electric wire, and intersecting the introduction direction of the electric wire from the tip of the spring piece to a position facing the electric wire insertion hole A locking spring having a locking piece extending in the direction to be connected, and the locking portion including a hole penetrating through the locking piece and through which a contact portion with the electric wire of the terminal plate is inserted, The release means is provided on the surface of the body through an opening provided in the body. A release button provided with an operating part that is manually operated and a pushing part that pushes the locking piece in such a direction as to pull the locking part that bites into the electric wire when the operating part is operated. The release button includes a connection position when the electric wire is connected to the terminal plate by the connecting means and a non-connection position when the electric wire is not connected to the terminal plate. And at least a part of the operation portion protrudes from the opening through the opening to the surface of the container body , and the terminal plate is arranged in the direction of introducing the electric wire. A main piece facing the wire insertion hole across the lock spring, and an abutting piece that hangs down from the main piece along the direction of introducing the electric wire and contacts the rear end of the spring piece in a direction crossing the direction of introducing the electric wire And how to introduce wires from the main piece And the contact piece is in contact with the electric wire, and the lock spring is arranged in the body in a form in which the spring piece is arranged in a space surrounded by the main piece, the contact piece and the contact piece. The rear end of the spring piece that is housed and contacts the contact piece is bent in a direction away from the inner wall of the container .

According to this invention, the electric wire introduced through the electric wire insertion hole is inserted into the locking portion (hole) penetrating the locking piece, and is in contact with the contact portion of the terminal plate that is also inserted into the locking portion. At the same time, the peripheral portion of the hole bites in and is prevented from coming off and connected to the terminal board. On the other hand, when the operation part exposed on the surface of the container is manually operated, the release button moves from the connection position to the non-connection position, and along with that movement, the lock part that has digged into the wire is pulled away from the wire. By pushing and moving the lock piece, the lock of the lock portion can be released and the electric wire can be pulled out. Since the position of the operation part of the release button is different between the non-connected state where the electric wire is not connected to the terminal board and the connected state where the electric wire is connected to the terminal board, the position of the operating part relative to the body surface If the operation part does not protrude from the surface of the container, it is only necessary to operate the operation part that protrudes from the surface of the container when releasing the connection. Compared to the above, the operability of the release button is improved. Furthermore, it is possible to prevent the tip of the spring piece from being caught on the inner wall of the body when the spring piece of the lock spring is bent.

  According to a second aspect of the present invention, in the first aspect of the invention, the release button is provided movably along a direction intersecting the introduction direction of the electric wire, and at least a part of the operation portion is at the connection position. It protrudes from the body surface through the opening, and the operation portion is housed in the body through the opening and does not protrude from the body surface at the non-connection position.

  According to this invention, when the electric wire is not connected to the terminal plate, the operation part of the release button is housed in the container and does not protrude from the surface of the container, and the electric wire is connected to the terminal plate. In this case, since the operation part of the release button protrudes from the surface of the container through the opening, the connection completion display of the electric wire can be performed depending on whether the operation part protrudes from the surface of the container.

  According to a third aspect of the present invention, in the first aspect of the invention, the release button is latched at a non-connection position against the spring force of the spring piece, and an electric wire introduced into the body through the electric wire insertion hole is connected to the connection body. Latch means for releasing the latched state by the electric wire when connected to the terminal board by means, and the latch means is provided on the locked portion provided on the terminal board and the release button. The engaging portion is detachably engaged with the engaged portion and is pressed by an electric wire to release the engagement with the engaged portion.

  According to this invention, when the locking portion of the release button is locked to the locked portion of the terminal plate and the release button is latched at the non-connection position, the locking portion is the electric wire of the release button. Since the conductor is pushed and moved in the direction away from the wire, it is possible to easily introduce even an electric wire having a stranded conductor between the terminal plate and the locking portion, and the engaging portion is pressed by the electric wire and engaged. The release button moves from the non-connection position to the connection position by releasing the latched (locked) state with the stop portion, and the locking portion bites into the electric wire to prevent the electric wire from coming off.

  According to a fourth aspect of the present invention, in the first aspect of the present invention, the release button is provided with a stopper means that abuts against the inner wall of the container body and prevents movement relative to the container body when the operation portion is in the connection position. It is characterized by having.

  According to the present invention, it is possible to prevent the operation portion of the release button from protruding from the body surface beyond the connection position.

  According to a fifth aspect of the present invention, in the first aspect of the present invention, the terminal plate includes a main piece that faces the wire insertion hole across the lock spring in the direction of introducing the electric wire, and extends from the main piece in the direction of introducing the electric wire. A contact piece that comes into contact with the rear end of the spring piece in a direction that hangs down and intersects the introduction direction of the electric wire, and a contact piece that comes down from the main piece along the introduction direction of the electric wire and comes into contact with the electric wire. The lock spring is housed in the container in such a manner that the spring piece is disposed in a space surrounded by the main piece, the contact piece, and the contact piece, and the lock spring moves by contacting the spring piece. A restriction portion for restriction is provided on the terminal board.

  According to this invention, even when the release button is in the non-connection position and the spring piece is bent, the movement of the lock spring is restricted by the restriction portion provided on the terminal plate. The electric wire can be smoothly inserted.

  According to a sixth aspect of the present invention, in the third aspect of the present invention, the locked portion is provided in a portion facing the electric wire insertion hole of the terminal plate, and the electric wire is inserted through the insertion hole that contacts the electric wire. It is characterized by becoming.

  According to this invention, in the connected state in which the electric wire is inserted into the locked portion (insertion hole), the contact conduction between the electric wire and the terminal plate can be achieved also by the locked portion.

  According to a seventh aspect of the present invention, in the first aspect of the present invention, the locking piece is characterized in that a tip portion that contacts the pushing portion is bent toward the spring piece side.

  According to this invention, when the locking piece of the lock spring is bent, the tip portion is not caught by the pushing portion.

  According to an eighth aspect of the present invention, in the first aspect of the invention, the terminal plate includes a main piece that faces the electric wire insertion hole across the lock spring in the electric wire introduction direction, and extends from the main piece in the electric wire introduction direction. A contact piece that comes into contact with the rear end of the spring piece in a direction that hangs down and intersects the introduction direction of the electric wire, and a contact piece that comes down from the main piece along the introduction direction of the electric wire and comes into contact with the electric wire. The lock spring is housed in the container in a form in which the spring piece is disposed in a space surrounded by the main piece, the contact piece, and the contact piece, and is placed behind the spring piece that comes into contact with the contact piece. The end portion is bent into a substantially square shape.

  According to the present invention, the plastic deformation of the spring piece can be suppressed by distributing the stress applied to the curved central part of the spring piece to the rear end portion of the spring piece that is bent in a substantially square shape.

The invention according to claim 9 is the invention according to claim 1, wherein the release button is provided movably along the direction of introduction of the electric wire, and at least a part of the operation portion is at both the connected position and the non-connected position. It protrudes to the body surface through the opening.

  According to this invention, since the operation part always protrudes from the surface of the container, it is easy to operate, and the connection completion display of the electric wire can be performed by the position of the operation part with respect to the surface of the container being different between the connection position and the non-connection position.

The invention of claim 10 is characterized in that, in the invention of claim 9 , the release button includes a wire contact portion that faces the wire insertion hole along the direction of introduction of the wire and contacts the tip of the wire. To do.

  According to this invention, the tip of the electric wire introduced from the electric wire insertion hole comes into contact with the electric wire contact portion of the release button at the non-connection position, and the release button is pushed by the electric wire so that the release button is in the non-connection position. Therefore, the release button can be moved with a simple structure.

The invention according to claim 11 is the invention according to claim 9 , wherein the pushing portion is inclined in a direction away from the electric wire from the connection position toward the non-connection position along a direction intersecting the introduction direction of the electric wire. It has the inclined surface which contact | abuts to the said lock piece.

  According to this invention, when the release button moves from the connection position to the non-connection position, the lock piece comes into contact with the inclined surface of the pushing portion of the release button, and the lock piece comes to the inclined surface as the release button moves. Therefore, the locking part can be pushed and moved in a direction to be pulled away from the electric wire with a simple structure.

According to a twelfth aspect of the present invention, in the ninth aspect of the present invention, a guide rib is provided in the opening of the vessel body, and a guide hole through which the guide rib is inserted is provided in the operation portion. It is characterized by that.

  According to the present invention, since the release button moves between the connection position and the non-connection position in a state where the guide rib is inserted into the guide hole of the operation portion, the release button can be smoothly moved and operated. Will improve.

According to a thirteenth aspect of the present invention, in the twelfth aspect of the present invention, a biasing means for elastically biasing the release button from a non-connection position toward a connection position, and the release button against the elastic force of the biasing means. Latch means for latching at a non-connection position, and the latch means comprises a press-fit portion provided on the guide rib and press-fitted into the guide hole at the non-connection position.

  According to the present invention, when the press-fit portion provided on the guide rib is press-fitted into the guide hole and the release button is latched at the non-connection position, the direction in which the lock portion is pulled away from the electric wire by the push portion of the release button Therefore, even if the conductor is a stranded wire, it can be easily introduced between the terminal plate and the locking part. When the state is released, the release button moves from the non-connection position to the connection position, and the locking part bites into the electric wire, thereby preventing the electric wire from coming off.

According to a fourteenth aspect of the invention, there is provided the container according to the thirteenth aspect , wherein the biasing means comprises a coil spring, and a storage recess for storing and holding one end of the coil spring is provided through the wire insertion hole. It is provided near the inner wall of the body.

  According to the present invention, the distance between the release button and the wire insertion hole can be reduced by storing one end of the coil spring in the storage recess, and the release button can be used even when the length of the wire introduced into the container is short. Can be reliably moved to the connection position.

  According to the present invention, since the position of the operation part of the release button is different between the non-connected state where the electric wire is not connected to the terminal plate and the connected state where the electric wire is connected to the terminal plate, Based on the position of the operation unit, it is possible to display the completion of the connection of the electric wire, and when the connection of the electric wire is released, it is only necessary to operate the operation unit that protrudes from the surface of the device body. There is an effect that the operability of the release button is improved as compared with the case where it does not protrude.

(Embodiment 1)
The quick connection terminal device of this embodiment is used for a terminal portion for connecting an electric wire to a wiring device such as a switch or an outlet, and as shown in FIGS. 1 to 3, the terminal plate 1 and a lock spring are used. 10 and a release button 30. As shown in FIGS. 2 and 4, the terminal board 1 includes a main piece 2 formed in a substantially U shape by protruding a pair of legs 2a from one edge of a strip-shaped portion, and the center of the tip of each leg 2a. A belt-shaped metal plate having elastic properties of a strip-shaped contact piece 3 hanging down from the bottom and a pair of contact pieces 4 hanging down from the other edge of the main piece 2 in parallel with the contact piece 3 It is integrally formed by punching and bending, and an insertion hole 5 through which an electric wire is inserted is provided in both legs 2a of the main piece 2 so as to face an electric wire insertion hole described later. In addition, a restricting portion 6 that hangs downward through the insertion hole 5 is provided at a position opposite to the contact piece 3 across the insertion hole 5 in the main piece 2.

  The lock spring 10 has a spring piece 11 formed in an inverted J shape as shown in FIGS. 2 and 5 and a direction intersecting the direction of introduction of the wire from the tip of the spring piece 11 to a position facing the wire insertion hole. The extended locking piece 12 is formed integrally by bending a strip-shaped metal plate having elasticity and high conductivity, and the locking piece 12 has a substantially central portion. A locking part 13 made of a rectangular hole is provided therethrough. In addition, the rear end part of the spring piece 11 and the front end part of the locking piece 12 are respectively folded back inside. Moreover, the site | part facing the lock piece 12 of the spring piece 11 is bent in the shape of a substantially hemisphere.

  As shown in FIG. 6A, the terminal plate 1 and the lock spring 10 configured as described above are inserted into the lock portion 13 penetrating the lock piece 12 and the contact piece 3 of the terminal plate 1 is inserted into the spring. A portion of the piece 11 bent in a substantially hemispherical shape comes into contact with the contact piece 4 of the terminal plate 1, and the curved central portion of the spring piece 11 comes into contact with the lower surface of the main piece 2 and the main piece 2 and the contact piece. 3 and the spring piece 11 are combined in the form surrounded by the contact piece 4. At this time, the contact piece 3 is in a position near the spring piece 11 in the locking part 13. Then, as shown in FIG. 6B, the conductor 111 of the electric wire 110 introduced into the container through the electric wire insertion hole is inserted into the locking portion 13 of the locking piece 12, and the contact piece 3 and the locking portion 13 are connected. The conductor 111 is sandwiched between them, and the terminal plate 1 and the conductor 111 are brought into contact with each other by the spring force of the contact piece 3, and the locking portion 13 (periphery of the hole) bites into the conductor 111 to prevent it from coming off. Then, the electric wire 110 (conductor 111) is connected to the terminal plate 1. The conductor 111 is also inserted into the insertion hole 5 penetrating the leg 2 a of the main piece 2 of the terminal plate 1, and the contact between the terminal plate 1 and the conductor 111 is also caused by the peripheral edge of the insertion hole 5 contacting the conductor 111. Conduction is achieved.

  The release button 30 is made of a synthetic resin molded product, and as shown in FIGS. 7 and 8, the operation unit 31 formed in a flat rectangular parallelepiped shape, and protrudes forward from the lower part on one surface side of the operation unit 31, so that the lock spring 10 From the pushing portion 32 that pushes the locking piece 12, the latch portion 33 that protrudes forward from the center portion on the one surface side of the operation portion 31 and can be bent in the vertical direction, and the upper portion on the one surface side of the operation portion 31. A substantially L-shaped restricting portion 34 protruding forward and having a tip protruding upward, and a substantially triangular prism-shaped stopper portion 35 protruding on both side surfaces of the operation portion 31 are integrally formed. Note that a mountain-shaped locking portion 33 a protruding downward is provided at the tip of the latch portion 33.

  The terminal plate 1, the lock spring 10 and the release button 30 configured as described above are provided in the terminal plate storage chamber 102 provided in the body 100 of the wiring device such as a switch or an outlet as shown in FIGS. 1 and 3. Stored. The container 100 is assembled by combining a box-shaped body 100a whose upper surface is open and a cover 100b attached to the upper surface of the body 100a. As shown in FIG. 9, a pair of electric wire insertion holes 101 communicating with the terminal plate storage chamber 102 are provided through the bottom wall of the body 100 a. Also, a pair of vertical grooves 103 communicating with the terminal board storage chamber 102 are opened on the side surfaces of the body 100a. As shown in FIG. 1A, the release button 30 causes the pushing portion 32 to face the distal end of the locking piece 12 of the lock spring 10, and the operation portion 31 is opened from the vertical groove 103 that opens on the side surface of the container body 100. The terminal plate 1 is housed in the terminal plate storage chamber 102 together with the terminal plate 1 and the lock spring 10 so as to protrude freely. As shown in FIG. 2, two release buttons 30 are juxtaposed in the terminal board storage chamber 102 with the operation portion 31 inserted through the vertical groove 103. At this time, in a state in which the electric wire 110 is not connected, as shown in FIG. 1A, the engaging portion 33 a at the tip of the latch portion 33 is inserted into the insertion hole 5 that penetrates the main piece 2 of the terminal plate 1. The release button 30 has been moved to a position (non-connected position) where it is locked (latched) to the lower edge (locked portion). When the release button 30 is in the non-connection position, the lock piece 12 of the lock spring 10 is pushed by the pushing portion 32 and the spring piece 11 bends. Therefore, the wire insertion hole along the direction in which the electric wire 110 is introduced. The locking part 13 moves to a position facing 101. At this time, the release button 30 is elastically biased in the counter-operation direction (right direction in FIG. 1) by the spring force of the spring piece 11, but the locking portion 33 a provided at the tip of the latch portion 33 is inserted into the insertion hole 5 of the terminal plate 1. The release button 30 is held at the non-connected position because it is locked (latched) to the lower end edge (locked portion) of the lens. As shown in FIGS. 9 and 10, ribs 104 and 105 that come into pressure contact with the stopper portion 35 when the release button 30 is in the non-connection position are projected on the bottom surface of the body 100a. The release button 30 is also held in the non-connected position by pressing the lower portion of the operation unit 31 pressed between the ribs 104 and 105.

  Then, as shown in FIG. 1B, the conductor 111 of the electric wire 110 is passed through the electric wire insertion hole 101 provided in the bottom wall of the body 100a to the locking portion 13 provided in the locking piece 12 of the lock spring 10. When inserted, the leading end of the conductor 111 presses the locking portion 33a locked to the lower end edge (locked portion) of the insertion hole 5, and the latch portion 33 is bent upward, so that the locking portion 33a and the insertion hole 5 are inserted. The latch (latching) with the lower end edge (latched portion) of the is released. Then, the release button 30 that has been elastically biased by the spring force of the spring piece 11 moves in a direction in which the operation portion 31 protrudes from the side surface of the device body 100 (counter-operation direction) through the longitudinal groove 103 of the device body 100, thereby contacting The conductor 111 is sandwiched between the piece 3 and the lock portion 13, the terminal plate 1 and the conductor 111 are elastically contacted by the spring force of the contact piece 3 and brought into contact conduction, and the lock portion 13 (periphery of the hole) The electric wire 110 (conductor 111) is connected to the terminal plate 1 by being cut into the conductor 111 (see FIG. 1C). Here, since the locking part 13 consists of a hole penetrating the locking piece 12, the conductor 111 of the electric wire 110 can be prevented from being displaced from the locking part 13, and the connection reliability can be improved. When the release button 30 is in the non-connection position, the restricting portion 6 provided on the terminal plate 1 abuts against the central portion of the spring piece 11 of the lock spring 10 to restrict the movement of the lock spring 10. The conductor 111 can be smoothly inserted into the lock portion 13 of the lock spring 10. The release button 30 moved in the counter-operation direction by the spring force of the spring piece 11 is a position where the restricting portion 34 hits the inner side surface of the cover 100b (not shown) and the stopper portion 35 hits the inner wall surface of the body 100a as shown in FIG. Stop at (connection position). Therefore, when the release button 30 is in the connection position, the restricting portion 34 contacts the inner surface of the cover 100b and the stopper portion 35 contacts the inner wall surface of the body 100a. Protruding can be prevented.

  On the other hand, when the electric wire 110 is connected to the terminal plate 1 and the release button 30 is in the connection position, if the operation portion 31 protruding from the side surface of the container 100 is pushed, the locking piece 12 of the lock spring 10 is pushed. The spring piece 11 is bent by being pushed by the portion 32, and the locking portion 13 biting into the conductor 111 is separated from the conductor 111, and the electric wire 110 can be pulled out.

  Thus, according to the present embodiment, when the electric wire 110 is not connected to the terminal plate 1, the operation portion 31 of the release button 30 is housed in the container 100 and protrudes from the side surface of the container 100. First, when the electric wire 110 is connected to the terminal plate 1, the operation portion 31 of the release button 30 protrudes from the side surface of the device body 100 through the vertical groove 103, so that the operation portion 31 is opposed to the side surface of the device body 100. The connection completion display of the electric wire 110 can be performed depending on whether or not it protrudes. In addition, when the connection of the electric wire 110 is released, the operation portion 31 protruding from the side surface of the container body 100 may be pushed, so that the release button is compared with the case where the operation portion 31 does not protrude from the side surface of the container body 100. There is an advantage that the operability of 30 is improved. Furthermore, in the non-connected state (non-connected position) where the electric wire 110 is not connected, the spring piece 11 is bent by the pushing portion 32 of the release button 30 being pushed by the pushing portion 32 of the lock spring 10, Since the locking part 13 moves to the position facing the electric wire insertion hole 101 along the direction in which the electric wire 110 is introduced, it can be easily inserted into the locking part 13 even when the conductor of the electric wire is a stranded wire.

  In the present embodiment, by folding back the rear end portion of the spring piece 11 and the front end portion of the locking piece 12, the front end portion of the spring piece 11 is caught on the bottom wall of the body 100a when the spring piece 11 is bent, or When the locking part 12 is pushed by the pushing part 32, the tip part of the locking piece 12 is prevented from being caught by the pushing part 32. In addition, since the rear end portion of the spring piece 11 that contacts the contact piece 4 of the terminal plate 1 is bent in a substantially square shape, the rear end portion of the spring piece 11 is made flat as shown in FIG. Compared to the above, there is an advantage that the plastic deformation of the spring piece 11 can be suppressed by dispersing the stress applied to the curved center part of the spring piece 11 to the rear end part.

(Embodiment 2)
As shown in FIG. 12, this embodiment is characterized by the structure of the release button 40, and the terminal plate 1 and the lock spring 10 are the same as those in the first embodiment.

  The release button 40 is made of a synthetic resin molded product and protrudes obliquely upward from one end edge along the longitudinal direction of the operation unit 41 and the operation unit 41 formed in a flat rectangular parallelepiped shape as shown in FIGS. A pushing portion 42 that is narrower than the operation portion 41 and a substantially bowl-shaped wire contact portion 43 that protrudes from the tip of the pushing portion 42 are integrally formed. A rectangular guide hole 44 is provided in the center of the operation portion 41 so as to penetrate in the direction of introducing the electric wire (vertical direction in FIG. 14). Further, the lower surface of the electric wire contact portion 43 facing the electric wire insertion hole 101 is an inclined surface 43a that is inclined in a direction approaching the operation portion 41 from top to bottom. Further, the operation portion 41 and the wire contact portion 43 are provided with a holding recess 45 that opens downward and holds a tip portion of a coil spring 50 described later.

  On the other hand, as shown in FIGS. 12 and 13, a rectangular window hole 106 is opened in the side wall of the body 100 a facing the terminal plate storage chamber 102, and the inside of the window hole 106 is formed in the body (body 100 a). A pair of guide ribs 107 that stand along the direction in which the electric wire is introduced and are inserted into a guide hole 44 provided in the operation portion 41 of the release button 40 are arranged side by side at a distance from each other. The guide rib 107 is set such that the width dimension of the distal end portion far from the bottom wall of the body 100a is set smaller than the width dimension of the guide hole 44, but the width dimension of the proximal end portion closer to the bottom wall of the body 100a. Is set to be larger than the width dimension of the guide hole 44, and the wide portion serves as a press-fit portion 107 a to be press-fitted into the guide hole 44. In addition, a storage recess 108 that is recessed downward as shown in FIG. 16 is provided in a portion between the wire insertion hole 101 and the window hole 106 in the bottom wall of the body 100a. The end portion of the coil spring 50 as an urging means that urges elastically from the connection position toward the connection position is inserted and held in the housing recess 108.

  As shown in FIGS. 13 and 16A, the release button 40 configured as described above has the inclined surface 42 a of the pushing portion 42 opposed to the locking piece 4 of the terminal plate 1, and the wire contact portion 43. The end of the terminal plate 1 is made to oppose the wire insertion hole 101 through the insertion hole 5 of the terminal plate 1 along the direction of introduction of the electric wire, and the guide rib 107 is inserted into the guide hole 44 so that the operation portion 41 moves vertically in the window hole 106. The terminal plate 1 and the lock spring 10 are accommodated in the terminal plate storage chamber 102 so as to be freely configured. Here, the release button 40 has a direction in which the wire contact portion 43 is separated from the wire insertion hole 101 by the coil spring 50 whose ends are stored and held in the storage recess 108 of the body 100a and the holding recess 45 of the release button 40 (FIG. 16 upward). As shown in FIG. 13, two release buttons 40 having the same shape are juxtaposed in the terminal board storage chamber 102 by inserting the guide holes 44 of the operation unit 41 through the guide ribs 107.

  By the way, in the state where the electric wire 110 is not connected, as shown in FIG. 16A, the press-fit portion 107a provided at the base end portion of the guide rib 107 is press-fitted into the guide hole 44 and latched (non-connection position). ) Until the release button 40 is moved. When the release button 40 is in the non-connection position, the spring piece 11 of the lock spring 10 is pushed by the pushing portion 42 and bends, so that the chain extends to the position facing the wire insertion hole 101 along the direction in which the wire 110 is introduced. The lock 13 moves. At this time, the release button 40 is elastically biased in the counter-operation direction (upward in FIG. 16) by the spring force of the coil spring 50, but the press-fitting portion 107a of the guide rib 107 is press-fitted into the guide hole 44 and latched. The release button 40 is held at the non-connection position.

  Then, as shown in FIG. 16 (b), the conductor 111 of the electric wire 110 is passed through the electric wire insertion hole 101 provided through the bottom wall of the body 100 a to the locking portion 13 provided through the locking piece 12 of the lock spring 10. When inserted, the tip of the conductor 111 comes into contact with the wire contact portion 43 facing the wire insertion hole 101 through the insertion hole 5 so that an upward force is applied to the release button 40, and the press-fit portion 107a of the guide rib 107 is moved into the guide hole. The latch is released from 44. Then, the release button 40 elastically biased by the spring force of the coil spring 50 moves along the guide rib 107 in the same direction as the introduction direction of the electric wire 110 (upward in FIG. 16) and is pushed by the pushing portion 42. By returning the locked locking piece 12, the conductor 111 is held between the contact piece 3 and the locking part 13, and the terminal plate 1 and the conductor 111 are elastically contacted by the spring force of the contact piece 3 to make contact. At the same time, the locking portion 13 (periphery of the hole) bites into the conductor 111 and is prevented from coming off, and the electric wire 110 (conductor 111) is connected to the terminal plate 1 (see FIG. 16C).

  On the other hand, if the operation part 41 protruding to the side surface of the container 100 is pushed downward when the electric wire 110 is connected to the terminal plate 1 and the release button 30 is in the connection position, the locking piece 12 of the lock spring 10 is The spring piece 11 is bent by being pushed by the pushing portion 42, and the locking portion 13 biting into the conductor 111 is separated from the conductor 111, and the electric wire 110 can be pulled out.

  Thus, in the present embodiment, the operation part 41 of the release button 40 always protrudes from the side surface of the container body 100, so that it is easy to operate, and the position of the operation part 41 relative to the side surface of the container body 100 in the connected position and the non-connected position. The connection completion display of the electric wire can be performed by different. Further, the tip of the conductor 111 introduced from the wire insertion hole 101 abuts on the wire abutting portion 43 of the release button 40 in the non-connection position, and the wire abutment portion 43 is pushed by the conductor 111, so that the release button 40 is not in contact. Since it moves from the connection position to the connection position, the release button 40 can be moved with a simple structure. Further, when the release button 40 moves from the connection position to the non-connection position, the lock piece 12 comes into contact with the inclined surface 42 a of the pushing portion 42 of the release button 40, and the lock piece 12 is moved along with the movement of the release button 40. Is pushed by the inclined surface 42a, the locking portion 13 can be pushed and moved away from the conductor 111 with a simple structure. Moreover, since the release button 40 moves between the connection position and the non-connection position with the guide rib 107 inserted through the guide hole 44 of the operation unit 41, the release button 40 can be moved smoothly and operated. Improves.

  When the release button 40 is latched at the non-connection position by press-fitting the press-fit portion 107a provided on the guide rib 107 into the guide hole 44, the lock portion 13 is connected to the electric wire by the pushing portion 42 of the release button 40. Since the conductor is pushed and moved away from the wire, it is possible to easily introduce even an electric wire having a stranded conductor into the lock portion 13. Further, by storing one end portion of the coil spring 50 in the storage recess 108, the distance between the release button 40 and the wire insertion hole 101 can be reduced, and even when the length of the conductor 111 introduced into the container body 100 is short. There is an advantage that the release button 40 can be reliably moved to the connection position.

Embodiment 1 is shown, (a) is a partially omitted cross-sectional view of the unconnected state, (b) is a partially omitted cross-sectional view of the state in the middle of introducing the electric wire, (c) is the connection of the electric wire is completed It is sectional drawing which abbreviate | omitted the state partially. It is an exploded perspective view same as the above. It is an exploded perspective view same as the above. The terminal board in the same as above is shown, (a) is a front view, (b) is a top view, (c) is a left side view, (d) is a bottom view, and (e) is a right side view. The lock spring in the above is shown, (a) is a front view, (b) is a top view, (c) is a left side view, (d) is a bottom view, and (e) is a right side view. The terminal board and lock spring in the same are shown, (a) is a perspective view in a state where an electric wire is not connected, (b) is a perspective view in a state where an electric wire is connected. It is a perspective view of the release button in the same as the above. The release button in the above is shown, (a) is a front view, (b) is a top view, (c) is a left side view, (d) is a bottom view, (e) is a right side view, and (f) is a rear view. It is. It is the perspective view which abbreviate | omitted partially which shows the body of the container in the same. It is the top view which a part was abbreviate | omitted when the release button in the same as the above exists in a connection position. It is a perspective view which shows the other structure of the lock spring in the same as the above. 6 is an exploded perspective view of Embodiment 2. FIG. It is the perspective view which abbreviate | omitted a part same as the above. (A) (b) is a perspective view of the release button in the same as the above. The release button in the above is shown, (a) is a front view, (b) is a top view, (c) is a left side view, (d) is a bottom view, (e) is a right side view, and (f) is a rear view. It is. (A) is a partially omitted sectional view of the unconnected state, (b) is a partially omitted sectional view of the state in the middle of introducing the electric wire, and (c) is a state in which the connection of the electric wire is completed. It is sectional drawing abbreviate | omitted partially.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Terminal board 3 Contact piece 4 Contact piece 5 Insertion hole 10 Locking spring 11 Spring piece 12 Locking piece 13 Locking part 30 Release button 31 Operation part 32 Pushing part 33 Latching part 33a Locking part

Claims (14)

A terminal plate that comes into contact with an electric wire introduced into the container through an electric wire insertion hole provided in the container body of the wiring device, and the electric wire is sandwiched between the terminal plate using a spring force and a locking part Includes a connecting means that bites into the electric wire and prevents the electric wire from coming off, and a releasing means that releases the retaining state by the connecting means. The connecting means is substantially U-shaped by an elastic metal plate and has an introduction direction of the electric wire. A spring piece formed so as to be able to bend in the intersecting direction, a locking piece extending in a direction crossing the direction of introduction of the electric wire from the tip of the spring piece to a position facing the electric wire insertion hole, and the locking piece A lock spring having a lock portion formed by a hole penetrating through a piece and through which a contact portion with the electric wire of the terminal plate is inserted, and the release means passes through an opening provided in the vessel body An operation unit exposed on the surface and manually operated, and the operation unit is operated A release button provided with a pushing portion that pushes the lock piece in a direction to pull away the lock portion that has digged into the electric wire when the wire is pulled, and the release button has the wire connected by the connecting means. Provided movably with respect to the container between a connection position when connected to the terminal plate and a non-connection position when the electric wire is not connected to the terminal plate, At the connection position, at least a part of the operation portion protrudes through the opening to the surface of the container body , and the terminal plate includes a main piece that faces the wire insertion hole across the lock spring in the direction of introduction of the wire. A contact piece that hangs down from the main piece along the direction of introduction of the electric wire and abuts against the rear end of the spring piece in a direction crossing the direction of introduction of the electric wire, and hangs down from the main piece along the direction of introduction of the electric wire. The contact piece that comes into contact with the wire The lock spring is housed in the container in a form in which the spring piece is disposed in a space surrounded by the main piece, the contact piece, and the contact piece, and is placed behind the spring piece that comes into contact with the contact piece. A quick-connection terminal device characterized in that the end is bent in a direction away from the inner wall of the vessel .   The release button is provided movably along a direction intersecting the introduction direction of the electric wire, and at the connection position, at least a part of the operation portion protrudes from the body surface through the opening, and at the non-connection position, the release button 2. The quick connection terminal device according to claim 1, wherein the operating portion is housed in the container through the opening and does not protrude from the surface of the container.   The release button is latched at the non-connection position against the spring force of the spring piece, and the electric wire introduced into the container through the electric wire insertion hole is connected to the terminal plate by the connection means. Latch means for releasing the latched state, and the latch means is provided on the terminal plate, and is provided on the release button and is detachably locked on the locked part. 2. The quick-connection terminal device according to claim 1, comprising a locking portion that is pressed by an electric wire to release the locking with the locked portion.   The quick release according to claim 1, wherein the release button includes stopper means that abuts against an inner wall of the container body when the operation portion is in a connection position and is prevented from moving with respect to the container body. Terminal device.   The terminal plate includes a main piece facing the wire insertion hole across the lock spring in the direction of introducing the electric wire, and the spring in a direction that hangs down from the main piece along the direction of introducing the electric wire and intersects the direction of introducing the electric wire. A contact piece that contacts the rear end of the piece, and a contact piece that is suspended from the main piece along the direction of introduction of the electric wire and contacts the electric wire, and the lock spring includes the main piece and the contact piece The spring plate is disposed in the space surrounded by the contact piece and is accommodated in the container, and the terminal plate is provided with a restricting portion that contacts the spring piece and restricts the movement of the lock spring. The quick-connection terminal device according to claim 1, wherein:   4. The quick-connection terminal according to claim 3, wherein the locked portion is provided at a portion facing the electric wire insertion hole of the terminal plate and includes an insertion hole through which the electric wire is inserted and abutted against the electric wire. apparatus.   The quick-connection terminal device according to claim 1, wherein a tip of the locking piece that is in contact with the pushing portion is bent toward the spring piece.   The terminal plate includes a main piece facing the wire insertion hole across the lock spring in the direction of introducing the electric wire, and the spring in a direction that hangs down from the main piece along the direction of introducing the electric wire and intersects the direction of introducing the electric wire. A contact piece that contacts the rear end of the piece, and a contact piece that is suspended from the main piece along the direction of introduction of the electric wire and contacts the electric wire, and the lock spring includes the main piece and the contact piece The spring piece is housed in the container in a form surrounded by the contact piece, and the rear end portion of the spring piece that comes into contact with the contact piece is bent into a substantially square shape. The quick connection terminal device according to claim 1. The release button is provided so as to be movable along the direction of introduction of the electric wire, and at least a part of the operation portion protrudes through the opening to the surface of the body at both the connected position and the non-connected position. The quick connection terminal device according to claim 1. The quick-connection terminal device according to claim 9 , wherein the release button includes a wire contact portion that faces the wire insertion hole along the direction of introduction of the wire and abuts the tip of the wire . The pushing portion is provided with an inclined surface that inclines in a direction away from the electric wire from the connection position toward the non-connection position along a direction intersecting the introduction direction of the electric wire and contacts the locking piece. The quick-connection terminal device according to claim 9 , wherein 10. The quick connection terminal according to claim 9 , wherein a guide rib standing along the direction of introduction of the electric wire is provided in the opening of the vessel body, and a guide hole through which the guide rib is inserted penetrates the operation portion. apparatus. Urging means for elastically urging the release button from the non-connection position toward the connection position, and latch means for latching the release button in the non-connection position against the elastic force of the urging means, 13. The quick connection terminal device according to claim 12 , wherein the latch means comprises a press-fitting portion provided on the guide rib and press-fitted into the guide hole at the non-connection position . The biasing means comprises a coil spring, and a housing recess for housing and holding one end of the coil spring is provided in the vicinity of the inner wall of the container body through which the wire insertion hole is penetrated. Item 14. The quick connection terminal device according to item 13 .

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