JP2013258091A - Quick connection terminal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a quick connection terminal device which can perform pull-out action of a wire efficiently, and is hardly affected by a tool for unlocking.SOLUTION: The quick connection terminal device includes a lock spring 15 for pressing a wire 60 against a terminal plate 12, and an unlock button 16 for unlocking the contact between the lock spring 15 and the wire 60. The unlock button 16 is pivotally supported by a body 11, and has an abutting portion 16c which comes into contact with a portion of the contact part 15a of the lock spring 15 protruding from the surface of the wire 60. In a state where the wire 60 is not inserted into a wire insertion hole 14, the abutting portion 16c of the unlock button 16 is in contact with the contact part 15a of the lock spring 15, or it is not in contact therewith but their gaps are small enough to maintain the contact part 15a of the lock spring 15 substantially in parallel with the wire connection surface 12a of the terminal plate 12.

Description

  The present invention relates to a quick connection terminal device used for a wiring device such as an outlet or a switch.

  The configuration of a quick connection terminal device (conventional example) used in wiring appliances (see Non-Patent Document 1) such as outlets and switches manufactured and sold by the present applicant will be described with reference to FIGS. To do. 7A is a front view of the quick-connect terminal device (finished product), FIG. 7B is a state where the terminal plate is removed, FIG. 7C is a state where the lock spring and the unlock button are further removed, It shows the state. 8A is a side cross-sectional view of the quick connection terminal device, FIG. 8B is a state in which an electric wire is connected to the quick connection terminal device, and FIG. 8C is a state in which the electric wire is pulled out from the quick connection terminal device. Indicates. FIG. 9 is a rear view of the quick connection terminal device. In addition, in order to make it easy to understand the positions and shapes of the terminal plate, the lock spring, the unlock button, and the like, the guide grooves and side walls of the body are not shown in FIG.

  As shown in FIG. 7A, the two terminal plates 52 and 53 are held in a predetermined positional relationship inside the body 51 of the quick connection terminal device 50. A storage space 51a for storing a switch element and the like is formed at the center of the body 51 in the longitudinal direction (X direction). The terminal plates 52 and 53 are disposed on both sides of the storage space 51 a in the longitudinal direction of the body 51. Further, a tip portion (hereinafter simply referred to as “electric wire 60”: see FIG. 8B) of the vinyl insulated wire 60 for indoor wiring is inserted into the base plate 51b at the bottom of the body 51. There are two wire insertion holes 54 corresponding to the terminal plates 52 and 53, for a total of four locations.

  As shown in FIG. 7B, a total of four lock springs 55 are provided below the terminal plates 52 and 53 and inside the wire insertion hole 54 in the longitudinal direction. The lock spring 55 is for pressing the electric wire 60 inserted into the electric wire insertion hole 54 from the bottom of the body 51 against the electric wire connection surfaces 52a and 53a of the terminal plates 52 and 53, respectively. As shown in FIG. 8, the lock spring 55 includes a first contact portion 55 a located below and a second contact portion located above in a direction (vertical direction (Z direction)) perpendicular to the base plate 51 b of the body 51. 55b. The lower first contact portion 55a, when a pulling force is applied in the direction in which the electric wire 60 is pulled out, bites into the surface of the electric wire 60 and exhibits a wedge effect in order to prevent pulling out.

  An unlock button 56 for unlocking the lock spring 55 is provided at the center in the width direction (Y direction) of the body 51 and outside the lock spring 55 in the longitudinal direction. The unlock button 56 abuts on the lock spring 55 by being translated and rotated in the longitudinal direction, thereby releasing the locked state. In order to bend the first contact portions 55a of the two lock springs 55 with one unlock button 56, both sides of the unlock button 56 in the width direction of the body 51 are connected to the first contact portions 55a of the lock spring 55. A contact portion 56b for contact is formed.

  As shown in FIG. 7C, a so-called minus screw is provided at the center in the width direction of the base plate 51b of the body 51 and outside the wire insertion hole 54 in the longitudinal direction, that is, below the unlock button 56. A tool insertion hole 57 for inserting the tip end of the turning is formed. As shown in FIG. 9, the lower end 56 a of the unlock button 56 is exposed from the tool insertion hole 57, and a screw is interposed between the end surface on the outer side in the longitudinal direction of the tool insertion hole 57 and the lower end 56 a of the unlock button 56. The turning tip 61 can be inserted (see FIG. 8C).

  When the electric wire 60 is inserted into the electric wire insertion hole 54, the distal end portion of the electric wire 60 comes into contact with the first contact portion 55a and the second contact portion 55b of the lock spring 55 in order. At this time, since the first contact portion 55a of the lock spring 55 slides on the surface of the electric wire 60, the electric wire 60 is moved between the electric wire connection surface 52a or 53a of the terminal plate 52 or 53 and the lock spring 55 with a relatively small force. Can be inserted. In this state, that is, when a force is not applied to the unlocking button 56 and a pulling force is applied in the direction of pulling out the electric wire 60, the end surface of the first contact portion 55a of the lock spring 55 is wedged on the surface of the electric wire 60. The electric wire 60 cannot be pulled out easily.

  On the other hand, at the time of wiring work, it is necessary to pull out the wire 60 once connected from the wire insertion hole 54 for reasons such as wiring mistakes. In that case, as shown in FIG. 8C, the tip of the minus screwdriver 61 is inserted from the tool insertion hole 57 of the body 51. Then, the tip of the screwdriver 61 bites like a wedge between the end surface of the tool insertion hole 57 and the lower end 56 a of the unlock button 56 along the slope of the lower end 56 a of the unlock button 56. As a result, the unlock button 56 moves inward in the longitudinal direction of the body 51, contacts the terminal plate 52, the side wall of the body 51, and the like, and rotates with the contact point as a fulcrum. Furthermore, the first contact portion 55a is bent so that the contact portion 56b of the unlock button 56 contacts the first contact portion 55a of the lock spring 55 and the end surface of the first contact portion 55a is separated from the surface of the electric wire 60. . In this state, if a pulling force is applied in the direction in which the electric wire 60 is pulled out, the electric wire 60 can be smoothly pulled out from between the terminal plate 52 or 53 and the lock spring 55.

Matsushita Electric Works Cosmo Series Wide 21 Wiring Equipment (Catalog) Issued March 2007, page 17

  As can be seen from FIGS. 7 and 8, the first contact portion 55 a of each lock spring 55 and the contact portion 56 b of the unlock button 56 are in contact with each other in a state where the electric wire 60 is not connected to the quick connection terminal device 50. In addition, each lock spring 55 and the unlock button 56 can move inside the guide groove 51b or the guide portion 51c of the body 51. Therefore, during wiring work, as shown in FIG. 10, the contact portion 55a of the lock spring 55 is not parallel to the width direction (or the wire connection surface 52a or 53a of the terminal plate 52 or 53) (inclined state). Thus, the electric wire 60 may be inserted into the electric wire insertion hole 54. Then, the distance between the contact portion 56b of the unlock button and the first contact portion 55a of the lock spring 55 changes from the design reference value. In the example shown in FIG. 10, for the upper lock spring 55A, the distance between the contact portion 56b and the first contact portion 55a is shorter than the design reference value, and for the lower lock spring 55A, the contact portion 56b The distance of the 1st contact part 55a becomes longer than a design reference value.

  In this state, when the distal end portion of the screwdriver 61 is inserted from the tool insertion hole 57 of the body 51 and the unlocking button 56 is operated in order to pull out the electric wire 60, the contact portion 56b of the unlocking button 56 becomes the upper locking spring. The first contact portion 55a of 55A is first brought into contact, and the locking of the electric wire 60 by the upper lock spring 55A is released first, so that the upper electric wire 60 can be pulled out. However, the contact portion 56b of the unlock button 56 is not in contact with the first contact portion 55a of the lower lock spring 55B, or even if it is in contact, the lock of the electric wire 60 by the lower lock spring 55B is released. The lower electric wire 60 is not ready to be pulled out. Therefore, even if an operator tries to pull out these electric wires 60 at the same time, only one electric wire 60 can be drawn out, and the drawing operation has to be performed again, so that workability is lowered. Even when the electric wire 60 is inserted into only one of the electric wire insertion holes 54, the same applies when the distance between the contact portion 56b and the first contact portion 55a is longer than the design reference value.

  Alternatively, in order to simultaneously pull out both the electric wires 60, in order to increase the movement amount or the rotation angle of the unlock button 56, it is necessary to rotate the handle 61 with the end surface of the tool insertion hole 57 as a fulcrum. An unexpectedly large force is applied to the edge portion 57a of the tool insertion hole 57 of the base plate 51b of the body 51 by the principle of “lever”, and the base plate 51b of the body 51 is cracked or chipped. there's a possibility that. Further, even when the electric wire 60 is inserted into any one of the electric wire insertion holes 54, the same applies when the distance between the contact portion 56b and the first contact portion 55a is longer than the design reference value.

  The same thing can happen even when the lock spring 55 is not tilted. That is, since the user cannot predict what size or tip shape of the screwdriver will be used, for example, when using a screwdriver with a thin tip, simply use the tip of the screwdriver as the end face of the tool insertion hole 57 and the unlock button. Even if it is inserted between the lower end 56a of 56, the amount of movement or rotation of the unlock button 56 is small, and the lock spring 55 cannot be elastically deformed enough to pull out the electric wire 60. Even in that case, it is necessary to rotate the handle of the screwdriver 61 with the end face of the tool insertion hole 57 as a fulcrum. However, as in the above case, the base plate 51b of the body 51 is cracked or chipped. There is a possibility.

  The present invention has been made in order to solve the above-described problems of the conventional example, can efficiently perform the drawing operation of the electric wire, reduces the influence of the unlocking tool, and damages the body. An object of the present invention is to provide a quick connection terminal device with reduced possibility.

In order to achieve the above object, a quick connection terminal device according to the present invention includes:
A terminal plate having a wire connection surface connected to a tip portion (hereinafter referred to as an electric wire) of the electric wire that is not covered with insulation;
A body having a base plate, in which an electric wire insertion hole into which the electric wire is inserted is formed in the base plate, and the terminal plate is held at a predetermined position so that the electric wire connection surface is substantially perpendicular to the base plate When,
The wire is held by the body in the vicinity of the wire insertion hole, and when the wire is inserted into the body from the wire insertion hole, the wire contacts the outer surface of the wire and presses the wire against the wire connection surface. In addition, when a pulling force is applied to the electric wire in a direction of pulling out from the electric wire insertion hole in a state where the electric wire is pressed against the electric wire connection surface, the contact portion that bites into the surface of the electric wire and exhibits a wedge effect A plate-like lock spring,
An unlock button is provided that elastically deforms the contact portion of the lock spring in a direction away from the surface of the electric wire when operated by a user while the electric wire is pressed against the electric wire connection surface by the lock spring. A quick connection terminal device,
The contact portion of the lock spring has a width greater than the diameter of the wire;
The unlocking button is a rotating shaft pivotally supported on the body in parallel to the electric wire connection surface, a rotating body portion rotated around the rotating shaft, and a vicinity of a free end of the rotating body portion, A contact portion that contacts a portion of the contact portion of the lock spring protruding from the surface of the wire;
In a state where no electric wire is inserted into the electric wire insertion hole, the contact portion of the unlock button is in contact with the contact portion of the lock spring, or the contact portion of the unlock button is the Although it is not in contact with the contact portion of the lock spring, the gap between them is small enough to keep the contact portion of the lock spring substantially parallel to the wire connection surface. .

The contact portion of the lock spring is a cantilever spring with one end open,
In a state where no electric wire is inserted into the electric wire insertion hole, the contact portion of the unlocking button and the open end portion of the cantilever spring are both perpendicular to the base plate and the electric wire connection surface. It is preferable that they are substantially parallel.

  The rotation shaft of the unlock button is preferably located on the opposite side of the lock spring with respect to the wire connection surface of the terminal plate.

The electric wire insertion hole and the lock spring are provided in two sets in a direction parallel to the electric wire connection surface of the terminal plate,
The rotary body portion of the unlocking button is opposed to the gap portion between the two lock springs arranged in a direction parallel to the wire connection surface, and has a width wider than the size of the gap portion of the lock spring. It is preferable to have.

  Or it is preferable that the said rotating shaft of the said unlocking button is located in the same side as the said lock spring with respect to the said electric wire connection surface of the said terminal board.

The electric wire insertion hole and the lock spring are provided in two sets in a direction parallel to the electric wire connection surface of the terminal plate,
The rotating main body portion of the unlocking button is formed so as to oppose a gap portion between two lock springs arranged in a direction parallel to the electric wire connection surface, and the contact portion is formed from the rotating main body portion. It is preferable that the projection protrudes in a direction parallel to the wire connection surface so as to face the lock spring.

  According to the configuration as described above, when the electric wire is not inserted into the electric wire insertion hole, the contact portion of the unlocking button is in contact with the portion protruding from the surface of the electric wire of the contact portion of the lock spring. Or the gap between them is so small that the abutment portion of the lock spring is maintained substantially parallel to the wire connection surface. It is maintained substantially parallel to the wire connection surface. Therefore, even if the wire is inserted between the terminal plate and the lock spring through the wire insertion hole, and the contact portion of the lock spring is elastically deformed, the distance between the contact portion of the unlock button and the contact portion of the lock spring is almost the design standard. Maintained at the value. And since the rotation angle of the release button necessary for releasing the wedge effect by the contact portion of the lock spring is constant, there is no need to increase the movement amount or rotation angle of the unlock button, and the tool of the base plate of the body The possibility that an excessive force is applied to the edge portion of the insertion hole is reduced, and the possibility that the body base plate is cracked or chipped is reduced. Even when the two lock springs are elastically deformed by one unlock button, the contact portions of the two lock springs are deformed by the same amount almost simultaneously, so that two electric wires can be pulled out simultaneously. Therefore, there is no need to redo the drawing work and workability is not lowered. Further, since the unlock button performs only a rotation operation and does not move in parallel, the unlock button is not easily affected by the thickness of the tip of the screwdriver.

It is a front view which shows the structure of the quick connection terminal device which concerns on 1st Embodiment of this invention, Comprising: (a) shows the state of the completed product which attached the terminal board, (b) shows the state which removed the terminal board. . It is side sectional drawing which shows the structure of the quick connection terminal device which concerns on 1st Embodiment, (a) shows the state which has not connected the electric wire, (b) shows the state which connected the electric wire, (c ) Shows the state when the connected wire is pulled out. It is a perspective view which shows the whole unlocking button shape in 1st Embodiment. It is a front view which shows the structure of the quick connection terminal device which concerns on 2nd Embodiment of this invention, Comprising: (a) shows the finished product state which attached the terminal board, (b) shows the state which removed the terminal board. . It is side sectional drawing which shows the structure of the quick connection terminal device which concerns on 2nd Embodiment, (a) shows the state which has not connected the electric wire, (b) shows the state which connected the electric wire, (c ) Shows the state when the connected wire is pulled out. It is a perspective view which shows the whole unlocking button shape in 2nd Embodiment. It is a front view which shows the structure of the conventional quick-connection terminal device, (a) shows the state of the finished product with the terminal plate attached, (b) shows the state with the terminal plate removed, (c) shows the lock spring and the unlocking device. A state where the lock button is removed and only the body is shown. It is side part sectional drawing which shows the structure of the conventional quick connection terminal apparatus, (a) shows the state which has not connected the electric wire, (b) shows the state which connected the electric wire, (c) shows the electric wire which connected The state when pulling out is shown. It is a rear view of the conventional quick connection terminal device. It is a partial front view which shows the subject of the conventional quick connection terminal device.

(First embodiment)
A quick connection terminal device according to a first embodiment of the present invention will be described with reference to FIGS. 1 to 3. In FIG. 1, (a) is a front view of a quick connection terminal device (finished product), and (b) shows a state in which a terminal plate is removed. 2A is a side cross-sectional view of the quick connection terminal device, FIG. 2B is a state where the electric wire is connected to the quick connection terminal device, and FIG. 2C is a state where the electric wire is pulled out from the quick connection terminal device. Indicates. FIG. 3 shows the overall shape of the unlock button in the first embodiment. In addition, since the rear view of the quick connection terminal device according to the first embodiment is the same as the conventional one, the illustration is omitted. Further, in order to facilitate understanding of the positions and shapes of the terminal plate, the lock spring, the unlock button, etc., the illustration of the guide groove and the side wall of the body is omitted in FIG.

  As shown in FIGS. 1 and 2, the quick-connect terminal device 10 is a thermosetting resin for holding two terminal plates 12 and 13 made of a highly conductive metal such as copper in a predetermined positional relationship. It has the body 11 shape | molded by. A storage space 11a for storing a switch element such as a seesaw switch, a push-on / push-off switch, or an electronic switch using a triac is formed in the central portion of the body 11 in the longitudinal direction (X direction). Yes. Various types of switches can be configured by attaching these switch elements from above the quick connection terminal device 10.

  The base plate 11b at the bottom of the body 11 is a tip portion of an electric wire that is not insulation-coated (insulation coating is peeled) out of the vinyl-insulated electric wire 60 for indoor wiring (hereinafter simply referred to as “electric wire 60”: The wire insertion holes 14 for inserting (see FIG. 2 (b)) are provided in two places corresponding to the terminal plates 12 and 13, respectively, in a total of four places. The terminal plates 12 and 13 are arranged on both sides of the storage space 11a in the longitudinal direction of the body 11, and are placed at predetermined positions on the body 11 so that the wire connection surfaces 12a and 13a are substantially orthogonal to the base plate 11b. Is retained. The terminal plates 12 and 13 have the same shape of the portion held by the base plate 11 b of the body 11 and the portion connected to the electric wire 60, but depending on the type of the switch element attached to the quick connection terminal device 10. The shapes of other parts are appropriately changed.

  When the terminal plates 12 and 13 are removed as shown in FIG. 1B, a total of four lock springs 15 are provided below the terminal plates 12 and 13 and inside the wire insertion holes 14 in the longitudinal direction. Yes. Each lock spring 15 is housed and held in a guide portion 11 c formed in the body 11. The lock spring 15 is used to press the electric wire 60 inserted into the electric wire insertion hole 14 from the bottom of the body 11 against the electric wire connection surfaces 12a and 13a of the terminal plates 12 and 13, respectively, and is formed of a material that is easily elastically deformed. ing. As shown in FIG. 2, the lock spring 15 includes a first contact portion 15 a located below in a direction perpendicular to the base plate 11 b of the body 11 (up and down direction (Z direction)) and a second contact located above. It has a portion 15b. The contact surface of the upper second contact portion 15b is curved in order to make the contact with the electric wire 60 smooth. On the other hand, the lower first contact portion 15a has a cantilever spring shape with one end opened, and when a pulling force is applied in a direction in which the wire 60 is pulled out, All the sides of the open end face of the cantilever spring are formed so as to be substantially perpendicular to each other so as to bite into the surface like a wedge. Similarly to the conventional example shown in FIG. 10, the first contact portion 15 a and the second contact portion 15 b of the lock spring 15 each have a width larger than the diameter of the electric wire 60.

  An unlock button 16 for unlocking the lock spring 15 is provided at the center in the width direction (Y direction) of the body 11 and outside the lock spring 15 in the longitudinal direction. As shown in FIG. 3, the unlocking button 16 is formed integrally with, for example, a thermosetting resin, and is parallel to the wire connection surfaces 12 a and 13 a of the terminal plates 12 and 13 (or parallel to the width direction) to the body 11. A rotating shaft 16a that is pivotally supported, a rotating main body portion 16b that is rotated around the rotating shaft 16a, and a free end of the rotating main body portion 16b, of the first contact portion 15a of the lock spring 15, It has the contact part 16c which contacts the part which protrudes outside a width | variety. In the unlocking button 16 of the first embodiment, the rotating shaft 16a is formed so as to protrude from the rotating main body portion 16b to both sides in the width direction. Further, as shown in FIGS. 1B and 2A, the bearing 11d of the rotary shaft 16a of the unlocking button 16 is an upper portion of the body 11, on both side walls in the width direction, and in the longitudinal direction. It is formed outside the electric wire insertion hole 14 in the direction. Therefore, the rotation shaft 26 a of the unlock button 26 is located on the opposite side of the lock spring 15 with respect to the wire connection surface 12 a or 13 a of the terminal plate 12 or 13. A rotary shaft 16a is rotatably supported between the switch element housing (not shown) mounted on the quick connection terminal device 10.

  Further, in a state where the electric wire 60 is not inserted into the electric wire insertion hole 14, it is preferable that the contact portion 16 c of the unlock button 16 and the open end portion of the first contact portion 15 a of the lock spring 15 are in contact with each other. Alternatively, even if the contact portion 16c of the unlock button 16 and the first contact portion 15a of the lock spring 15 are not in contact, the contact portion 16c of the unlock button 16 and the first contact portion 15a of the lock spring 15 The open end is substantially parallel to a plane (cross section in FIG. 2A) that is both perpendicular to the base plate 11b and the wire connection surface 12a, and the gap between them is the first contact portion of the lock spring 15. What is necessary is just to be small to such an extent that 15a and the 2nd contact part 15b are maintained substantially parallel to the electric wire connection surfaces 12a and 13a of the terminal plates 12 and 13. FIG. With such a configuration, the unlock button 16 is guided in the width direction by the bearing 11d of the body 11, and therefore hardly moves in the width direction and the longitudinal direction. Further, since the lock spring 15 is guided by the guide portion 11c of the body 11 and the contact portion 16c of the unlock button 16, similarly, it hardly moves in the width direction and the longitudinal direction. Accordingly, even when the electric wire 60 is not inserted into the electric wire insertion hole 14, the posture of the lock spring 15 is stabilized, so that the first contact portion 15a and the second contact portion 15b of the lock spring 15 are in the width direction. The electric wire 60 is hardly inserted into the electric wire insertion hole 54 in a state that is not parallel (tilted).

  When the electric wire 60 is inserted into the electric wire insertion hole 14, the tip end portion that is not covered with insulation comes into contact with the first contact portion 15a and the second contact portion 15b of the lock spring 15 in order. At this time, since the first contact portion 15a of the lock spring 15 slides on the surface of the electric wire 60, the electric wire 60 can be inserted between the terminal plate 12 or 13 and the lock spring 15 with a relatively small force. In this state, that is, when a force is not applied to the unlocking button 16 and a pulling force is applied in the direction in which the wire 60 is pulled out, the open end of the first contact portion 15a of the lock spring 15 becomes the surface of the wire 60. The electric wire 60 cannot be pulled out easily.

  A tool insertion hole 17 for inserting the tip of a screwdriver 61 at the bottom of the body 11 at the center in the width direction and outside the wire insertion hole 14 in the longitudinal direction, that is, below the unlock button 16. Is formed. In general, at the time of wiring work, it is necessary to pull out the electric wire 60 once connected from the electric wire insertion hole 14 due to a wiring error or the like. In that case, as shown in FIG. 2C, the tip of the minus screwdriver 61 is inserted from the tool insertion hole 17 of the body 11. Then, the tip of the screwdriver 61 comes into contact with the back surface of the rotary main body 16b of the unlock button 16. Since the back surface of the rotation main body 16b is inclined, a part of the force received by the unlocking button 16 from the screwdriver 61 acts in the direction of rotating the unlocking button 16 around the rotating shaft 16a. Thereby, the rotation main body 16b of the unlock button 16 rotates around the rotation shaft 16a. Further, the first contact portion is arranged such that the contact portion 16 c near the free end of the rotary body portion 16 b contacts the first contact portion 15 a of the lock spring 15, and the end surface of the first contact portion 15 a is separated from the surface of the electric wire 60. 15a is elastically deformed (curved). In this state, if a pulling force is applied in the direction of pulling out the electric wire 60, the electric wire 60 can be smoothly pulled out from between the terminal plate 12 or 13 and the lock spring 15.

  Thus, according to the configuration of the first embodiment, in a state where the electric wire 60 is not inserted into the electric wire insertion hole 14, both the unlock button 16 and the lock spring 15 are almost in the longitudinal direction and the width direction of the body 11. Without moving, the first contact portion 15a and the second contact portion of the lock spring 15 are maintained substantially parallel to the width direction. Even if the electric wire 60 is inserted into the electric wire insertion hole 14, the first contact portion 15a and the second contact portion of the lock spring 15 remain substantially parallel to the width direction. Therefore, the distance between the contact portion 16c of the unlock button 16 and the first contact portion 15a of the lock spring 15 is hardly changed from the design reference value. In this state, when the unlock button 16 is rotated when the electric wire 60 is pulled out, the first contact of the two lock springs 15 arranged in the width direction with the contact portion 16c being substantially parallel to the width direction. The parts 15a are in contact with each other almost simultaneously. When the unlock button 16 is further rotated, the first contact portions 15a of the two lock springs 15 are deformed by substantially the same amount, so that the two electric wires 60 can be pulled out simultaneously, and workability is not lowered. Even when the electric wire 60 is inserted only into one of the electric wire insertion holes 14, the distance between the contact portion 16c of the unlock button 16 and the first contact portion 15a of the lock spring 15 is almost from the design reference value. It does not change. Further, since it is not necessary to rotate the unlock button 16 excessively, the possibility that an excessive force is applied to the edge portion of the tool insertion hole 17 of the base plate 11b of the body 11 is reduced, and the base plate 11b of the body 11 is applied. The possibility of cracking or chipping is reduced.

(Second Embodiment)
Next, a quick connection terminal device according to a second embodiment of the present invention will be described with reference to FIGS. In FIG. 4, (a) is a front view of the quick-connection terminal device (finished product), and (b) shows a state in which the terminal plate is removed. 5A is a side cross-sectional view of the quick connection terminal device, FIG. 5B is a state where the electric wire is connected to the quick connection terminal device, and FIG. 5C is a state where the electric wire is pulled out from the quick connection terminal device. Indicates. FIG. 6 shows the overall shape of the unlock button in the second embodiment. Further, description of parts common to the quick connection terminal device of the first embodiment is omitted.

  As is apparent from FIGS. 4 to 6, in the quick coupling terminal device 20 according to the second embodiment, the shape of the unlock button 26 is different from the shape of the unlock button 16 in the first embodiment. That is, the lower end portion of the rotating main body portion 26b is formed in a semicylindrical shape, and this semicylindrical portion functions as the rotating shaft 26a. The rotating body 26b is formed so as to face the gap between the two lock springs 15 arranged in the width direction (direction parallel to the wire connection surface 12a or 13a of the terminal plate 12 or 13), and The width of the rotary body 26 b is set to be narrower than the gap of the lock spring 15. And the contact part 26c of the unlocking button 26 protrudes on the outer side in the width direction from the rotation main body part 26b so as to face the lock spring 15, respectively. And the bearing 11e of the body 11 is the bottom part of the body 11, Comprising: Between the two guide parts 11c for hold | maintaining the two lock springs 15 in the width direction, and the electric wire insertion hole 14 in a longitudinal direction It is formed inside than. Therefore, the rotation shaft 26 a of the unlock button 26 is located on the same side as the lock spring 15 with respect to the wire connection surface 12 a or 13 a of the terminal plate 12 or 13. Thus, the unlocking button 26 in the second embodiment is the first embodiment due to the difference in the position of the rotating shaft 26a of the unlocking button 26 in the second embodiment and the rotating shaft 16a of the unlocking button 16 in the first embodiment. It rotates in the opposite direction to the unlock button 16 in the form.

  According to the configuration of the second embodiment, the rotation shaft 26a of the unlocking button 26 and its bearing 11e are provided between the two lock springs 15 in the width direction of the body 11, so the body in the first embodiment Other functional parts such as neon tubes and LEDs and their lighting circuits can be provided in the space of the 11 bearing 11d portion. In addition, the entire volume of the unlock button 26 can be made smaller than the entire volume of the unlock button 16 in the first embodiment. Since the quick connection terminal device 10 or 20 is mass-produced, even if the volume of each unlocking button 26 is small, the total amount of material used can be greatly saved. Is possible.

  In the description of each of the above embodiments, the quick connection terminal device 10 or 20 includes two terminal plates 12 and 13 and is configured so that two electric wires 60 can be connected to each of the terminal plates 12 and 13. However, the present invention is not limited to such a configuration. For example, the quick connection terminal device may be configured to connect at least one electric wire to at least one terminal plate, and the number of terminal plates and the number of electric wire insertion holes formed in the body are not particularly limited. . Needless to say, the use of the quick connection terminal device is not limited to a wiring device such as an outlet or a switch, and can be applied to connect electric wires to other electric devices.

DESCRIPTION OF SYMBOLS 10, 20 Fast connection terminal apparatus 11 Body 11b Base board 11d, 11e Bearing 12, 13 Terminal board 12a, 13a Electric wire connection surface 14 Electric wire insertion hole 15 Lock spring 15a 1st contact part (contact part)
15b Second contact portion 16, 26 Unlock button 16a, 26a Rotating shaft 16b, 26b Rotating body portion 16c, 26c Abutting portion

Claims (6)

A terminal plate having a wire connection surface connected to a tip portion (hereinafter referred to as an electric wire) of the electric wire that is not covered with insulation;
A body having a base plate, in which an electric wire insertion hole into which the electric wire is inserted is formed in the base plate, and the terminal plate is held at a predetermined position so that the electric wire connection surface is substantially perpendicular to the base plate When,
The wire is held by the body in the vicinity of the wire insertion hole, and when the wire is inserted into the body from the wire insertion hole, the wire contacts the outer surface of the wire and presses the wire against the wire connection surface. In addition, when a pulling force is applied to the electric wire in a direction of pulling out from the electric wire insertion hole in a state where the electric wire is pressed against the electric wire connection surface, the contact portion that bites into the surface of the electric wire and exhibits a wedge effect A plate-like lock spring,
An unlock button is provided that elastically deforms the contact portion of the lock spring in a direction away from the surface of the electric wire when operated by a user while the electric wire is pressed against the electric wire connection surface by the lock spring. A quick connection terminal device,
The contact portion of the lock spring has a width greater than the diameter of the wire;
The unlocking button is a rotating shaft pivotally supported on the body in parallel to the electric wire connection surface, a rotating body portion rotated around the rotating shaft, and a vicinity of a free end of the rotating body portion, A contact portion that contacts a portion of the contact portion of the lock spring that protrudes from the surface of the electric wire;
In a state where no electric wire is inserted into the electric wire insertion hole, the contact portion of the unlock button is in contact with the contact portion of the lock spring, or the contact portion of the unlock button is the Although it is not in contact with the contact portion of the lock spring, the gap between them is small enough to keep the contact portion of the lock spring substantially parallel to the wire connection surface. Fast connection terminal device. The contact portion of the lock spring is a cantilever spring with one end open,
In a state where no electric wire is inserted into the electric wire insertion hole, the contact portion of the unlocking button and the open end portion of the cantilever spring are both perpendicular to the base plate and the electric wire connection surface. The quick-connection terminal device according to claim 1, wherein the quick-connection terminal device is substantially parallel.   3. The quick-connect terminal according to claim 1, wherein the rotation shaft of the unlock button is located on a side opposite to the lock spring with respect to the wire connection surface of the terminal plate. apparatus. The electric wire insertion hole and the lock spring are provided in two sets in a direction parallel to the electric wire connection surface of the terminal plate,
The rotary body portion of the unlocking button is opposed to the gap portion between the two lock springs arranged in a direction parallel to the wire connection surface, and has a width wider than the size of the gap portion of the lock spring. The quick-connection terminal device according to claim 3, comprising:   3. The quick-connection terminal device according to claim 1, wherein the rotation shaft of the unlocking button is located on the same side as the lock spring with respect to the wire connection surface of the terminal plate. . The electric wire insertion hole and the lock spring are provided in two sets in a direction parallel to the electric wire connection surface of the terminal plate,
The rotating main body portion of the unlocking button is formed so as to oppose a gap portion between two lock springs arranged in a direction parallel to the electric wire connection surface, and the contact portion is formed from the rotating main body portion. The quick-connection terminal device according to claim 5, wherein each of the quick-connection terminal devices protrudes in a direction parallel to the wire connection surface so as to face the lock spring.

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