JP2006021256A - Ring-shaped locking part forming tool of wiring conductive terminal - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems of supposed evil influences such as being unable to perform accurate wiring, and causing complaint due to not meeting regulations, since a conductive terminal is not positioned on a central extension line of a terminal, when installing a curl locking part on the terminal, though being suitable for forming the locking part of a curl shape, by providing a pair of nipping parts forming the locking part of the curl shape on the conductive terminal by mutual fitting of conventional female-male U-shaped metal fittings. <P>SOLUTION: This ring-shaped locking part forming tool 1 is constituted so that one side of the nipping parts 4 is formed into a columnar nipping part diametrally thinned toward a tip part, and the wiring conductive terminal is formed into a ring-shaped locking part by using the nipping parts, and the ring-shaped locking part can be installed in an installing part of the terminal. Thus, the ring-shaped locking part can be surely and easily formed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a ring-shaped locking portion forming tool for a wiring conductive terminal.

  Conventionally, in a ring-shaped locking part forming tool (radio pliers) of a wiring conductive terminal, it is usually formed by a pair of gripping parts and a pair of handle parts (gripping parts) for operating the gripping parts. In this structure, the pair of holding portions are brought into and out of operation to form a ring-shaped locking portion on the wiring conductive terminal (referred to as a wiring terminal). Although an example of the formation method using this shaping | molding tool is shown to 1-6 of FIG. 8, this formation method is an example and is not limited. In the example of FIG. 8, first, the covering portion is cut and a wiring terminal (conductive wire) is provided at the end of the covering cord (state 1 in FIG. 8). And this wiring terminal is clamped by the tip narrow diameter part of a clamping part, and this clamping part is twisted by the twist of a holding part, and is bent about 90 degrees (state 2 of FIG. 8). The middle part of the bent part and the slightly base part side are held by the holding part and bent by about 45 ° (state 3 in FIG. 8). Then, depending on the case, the middle part of the bent part and the slightly free end side are held by the holding part and bent by about 45 ° (state 4 in FIG. 8). Thereafter, the free end side of the bent portion is again held by the holding portion, and bent into a substantially ring shape in the direction of the arrow, whereby a substantially ring-shaped locking portion is formed (see 5 in FIG. 8). Status). Then, the base gap of the substantially ring-shaped locking part is held by the narrow end portion of the holding part, thereby forming the ring-shaped locking part and finishing (state 5 in FIG. 8). And it shape | molds through shaping | molding of the ring shape by correction in the middle, and fine adjustment. Therefore, since it is necessary to repeat and / or correct several times of holding and bending work, there is a problem that requires labor and skill. In particular, when fixing the ring-shaped locking portions to a large number of electrode terminals, it takes a lot of labor and labor to perform the molding operation of the ring-shaped locking portions. The improvement is desired. Moreover, in the situation where this type of molding work is performed outdoors, it is a problem because it requires much more labor and labor.

  Considering this improvement and means for solving the conventional problems from the prior literature, the following literature (1) and literature (2) can be cited, and an outline thereof will be described. This document (1) is a “curl shaping tool for wiring terminals” disclosed in Japanese Utility Model Laid-Open No. 63-201056, in which a female U-shaped bracket and a male U-shaped bracket are provided at the tip of a pair of holding portions provided on a grip. Each metal fitting is provided, and the curl-shaped locking part is formed on the conductive terminal through the fitting of the female / male U-shaped metal fitting, and the work for forming the curl-shaped locking part is easy. It is intended to be able to work without the need for experience. Reference (2) is a “radio pliers” disclosed in Japanese Utility Model Laid-Open No. 5-72366, in which a gripping piece (pin) is securely attached to the inner surface of the opposite side at the tip of the pair of holding parts provided on the grip. The structure is provided with a V-shaped groove or an R-shaped groove that can be held, and is intended to facilitate work, and ensure and easy attachment and / or removal of the split pin.

Japanese Utility Model Sho 63-201056 Utility Kaihei 5-72366

  The document (1) is a device in which a curled locking portion is formed on a conductive terminal through fitting of a female / male U-shaped metal fitting constituting a pair of holding portions. Therefore, it is suitable for molding a curl-shaped locking part (referred to as a curl locking part). However, when the curl locking portion is attached (fixed) to the terminal terminal (connection terminal), the base portion of the ring-shaped (substantially annular, perfect circle) locking portion and the center line extension line of the connection terminal and There is a problem that the covering cord is not located. For example, there is a problem that accurate wiring is not possible, or that the code is out of regulation and becomes a subject of a complaint. Similarly to the present invention, when it is assumed that a ring-shaped locking portion is formed, it is impossible with a tool employing the female / male U-shaped fitting fitting structure of this document (1), This is a problem to be improved. Further, when a ring-shaped locking portion is formed on a thick conductive terminal using the female / male U-shaped fitting structure, there is a possibility that the ring-shaped locking portion may be damaged. That is, the scratches become resistance and have heat, and the generation of this heat is likely to cause problems due to the risk of fire and the possibility of obstructing the flow of electricity. Further, in order to form the ring-shaped locking portion with the tool of this document (1), it is necessary to bring the free end side of the bent curl-shaped locking portion close to the base end side. In this case, in order to bend the free end side, it is necessary to perform a bending operation using a conventional radio pliers, and there are problems such as troublesomeness, labor and / or experience.

  According to the first aspect of the present invention, there is provided an attachment state in which the ring-shaped locking portion is reliably and easily formed, the shape is shaped (uniform), and the covering cord can be positioned on the center line extension line of the connection terminal. It is intended to secure. The present invention also provides a tool capable of reliably and easily forming the ring-shaped engaging portion, forming the ring-shaped engaging portion smoothly and in a short time, and mounting the conductive terminal to the connection terminal. It is intended to ensure speed, ease or certainty. Furthermore, forming a ring-shaped locking part without damaging almost all of the conducting wire, flowing electricity smoothly without giving resistance to one place of this conducting wire, improving durability, heat It is intended to avoid the occurrence of

  According to a first aspect of the present invention, at least one side of the gripping portion of the ring-shaped locking portion forming tool is formed in a cylindrical gripping portion having a small diameter toward the tip portion, and the conductive terminal of the wiring is ring-shaped using the gripping portion. This is a ring-shaped locking portion forming tool for a wiring conductive terminal which is formed into a locking portion and is configured such that the ring-shaped locking portion can be attached to a mounting portion of a terminal terminal.

  The invention of claim 2 is intended to achieve the object of claim 1 and to form a ring-shaped locking portion capable of ensuring a dimension suitable for the application quickly, easily or reliably.

  According to a second aspect of the present invention, there is provided a wiring conductive terminal having a structure in which the other side of the gripping portion according to the first aspect is formed to have a narrow diameter toward the tip portion and a groove is provided in a portion that can ensure a dimension suitable for the application. It is a ring-shaped locking part forming tool.

  The invention of claim 3 achieves the object of claim 1 and forms a ring-shaped locking portion capable of ensuring a dimension suitable for the application quickly, easily or reliably using visual inspection. Intended.

  According to a third aspect of the present invention, the cylindrical gripping portion according to the first aspect is formed so as to have a narrow diameter toward the distal end portion, and a ring-shaped engagement of a wiring conductive terminal configured to sequentially form a cylindrical portion having a size suitable for the application. It is a stop forming tool.

  According to the first aspect of the present invention, at least one side of the gripping portion of the ring-shaped locking portion forming tool is formed in a cylindrical gripping portion having a small diameter toward the tip portion, and the conductive terminal of the wiring is ringed using the gripping portion. A ring-shaped locking portion forming tool for a wiring conductive terminal, which is formed into a shape locking portion, and the ring-shaped locking portion can be attached to a mounting portion of a terminal terminal.

  Accordingly, the first aspect of the present invention is that the ring-shaped locking portion can be reliably and easily formed, the shape is fixed, and the covering cord (base of the conductive terminal) can be positioned on the center line extension line of the connection terminal. There is a feature that can be secured. The present invention also provides a tool capable of reliably and easily forming the ring-shaped engaging portion, forming the ring-shaped engaging portion smoothly and in a short time, and mounting the conductive terminal to the connection terminal. Has the benefit of ensuring speed, ease or certainty. Furthermore, it is possible to form a ring-shaped locking portion without damaging almost all of the conducting wire, to smoothly carry electricity without giving resistance to one place of this conducting wire, and to improve durability, It has features such as avoidance of heat generation.

  The invention according to claim 2 is the ring of the wiring conductive terminal in which the other side of the gripping part according to claim 1 is formed with a narrow diameter toward the tip, and a groove is provided in a portion that can ensure a dimension suitable for the application. It is a shape locking part forming tool.

  Accordingly, the second aspect has features such that the object of the first aspect can be achieved, and a ring-shaped locking portion capable of ensuring a dimension suitable for the application can be formed quickly, easily or reliably.

  The invention according to claim 3 is the ring-shaped locking of the wiring conductive terminal in which the cylindrical gripping portion according to claim 1 is formed with a narrow diameter toward the tip and sequentially forms a cylindrical portion having a size suitable for the application. This is a part forming tool.

  Accordingly, claim 3 is characterized in that the object of claim 1 can be achieved, and that a ring-shaped locking portion capable of ensuring a dimension suitable for the application can be formed quickly, easily or reliably using visual inspection. Have.

  Hereinafter, a preferred example of the present invention will be described. FIG. 1 shows a first embodiment, in which a holding part on one side is formed with a small diameter and a holding part on the other side is formed with a large diameter. It is a bird's-eye view made thin (reduced diameter). 1 to 4 in FIG. 2 are schematic views sequentially illustrating a process of forming a ring-shaped locking portion on a conductive terminal using the tool of the present invention. FIGS. 3A and 3B show the relationship between the connection terminal and the ring-shaped locking portion. FIG. 3A is a separated state, and FIG. 3B is locked (locked). State. FIG. 4 is a plan view showing an example of an electrical appliance (breaker) for connection. FIG. 5-1 shows a second embodiment, an overhead view in which the holding portion on one side is formed to have a small diameter and the large diameter on the other side is indicated, and the diameter is reduced toward the tip. 5-2 is a modification of FIG. 5-1, an overhead view of the main part having a configuration in which the holding part on one side has a small diameter with a groove, and FIG. 6-1 shows the third embodiment. Is a bird's-eye view in which the diameter of the holding portion is made smaller and the cylindrical portion having a size suitable for the application is formed stepwise on the other side, and the diameter is reduced toward the tip, and FIG. 7 is an overhead view of the main part of the configuration in which the holding part on one side has a small diameter with a groove, and FIG. 7 is still another modification, and each of the holding parts on one side and the other side has dimensions suitable for the application. An overhead view in which the cylindrical portion is formed in a stepped manner and the diameter is reduced toward the tip portion, 1 to 6 in FIG. 8 are formed with a ring-shaped locking portion by conventional radio pliers. An example is a schematic front view showing a state bent sequentially folded along 1-6.

  Reference numeral 1 denotes a tool. The tool 1 is formed of a gripping part 2, a pivotal support part 3 and a gripping part 4, and the gripping parts 4 and 4 are opened and closed (contacted and separated) by the pivotal support part 3. That is, in a state where the grip portion 2 is moved in the direction B in FIG. 1, the gripping portion 4 is moved in the direction B-1 in FIG. 1, and the gripping portion 4 is released. Further, in a state where the grip portion 2 is moved in the direction B in FIG. 1, the gripping portion 4 moves in the direction B-1 in FIG. 1, and the gripping portion 4 is closed. The pivot 3 is pivotally supported via a pivot (not shown) and ensures the movement of the grip 2 and / or the grip 4. In this example, the pivot portion 3 is formed with a half-thickness thickness, and the gripping portion 2 and / or the gripping portion 4 can be accommodated without protruding by overlapping the thickness of the half-thickness. Ideal.

  In this example, since the holding unit 4 has a special configuration, each example will be described. The example of FIG. 1 has a configuration in which the holding part 40 on one side has a small diameter and the holding part 41 on the other side has a large diameter, and the diameter decreases toward the tip. 2 is positioned on the inner side 50 of the ring shape of the conductive terminal 5, and the holding portion 40 on one side is positioned on the outer side 51 of the ring shape of the conductive terminal 5 as shown in FIG. In this state, by moving the tool 1 in the direction of the arrow X following the holding part 41 on the other side, a substantially ring shape 5a shown in 3 of FIG. 2 is formed. Thereafter, the base portion of the substantially ring shape 5a is held by the holding portions 40, 41 on one side and the other side to form the ring-shaped locking portion 6 shown in 4 of FIG. 2, the inner side 50 of the conductive terminal 5 is bent in the Y direction, and a bent portion is formed in advance, thereby facilitating the above-described operation or making the ring shape standard (size and / or size). This method is ideal but not limited. An example of this non-limiting reason is considered to be that there is no need to form the bent portion in advance depending on a ring-shaped forming method, experience, the wire diameter of the conductive terminal 5, or the like. In any case, in order to form a large number of ring shapes accurately, quickly and beautifully, an optimum forming operation is appropriately selected. Further, in the example of FIG. 5A, the ring-shaped dimension is displayed on the holding part 41 on the other side, the dimension suitable for the application is ensured, and the ring-shaped dimension and / or the shape is made uniform (the same applies to other examples). ) Or easy work. FIG. 5B shows a configuration in which a groove 42 (a part of the one side holding part 40 or the entire circumferential surface, etc.) is provided in the holding part 40 on one side, and the conductive terminal 5 is securely locked in this groove 42. This prevents the conductive terminal 5 from slipping and facilitates work. Further, in the example of FIG. 6A, the cylindrical portion 43 corresponding to the ring-shaped dimension is sequentially formed in the holding part 41 on the other side in a stepped manner, and the conductive terminal 5 is securely secured in the ring-shaped groove 42. The conductive terminal 5 can be prevented from slipping, easy work, and the like. The example in FIG. 6B is a configuration in which a groove 42 is provided in the holding portion 40 on one side, and the contents relating to the groove 42 are similar to the above-described example. Finally, in the example of FIG. 7, there is still another modification, in which the cylindrical portions 43 and 43a having dimensions suitable for the application are sequentially formed in a stepped manner on the holding portions 40 and 41 on one side and the other side. Although the feature is similar to that shown in FIG. 6A, in this example, the ring shape can be formed by movement in either the left or right direction, so that, for example, work can be performed regardless of left-handed or right-handed. It is possible to provide the groove 42 also in this example.

In the above description, the gripping portion 4 is provided with one and the other gripping portions 40 and 41, the one and the other gripping portions 40 and 41 have a small and large diameter, and the one gripping portion 40 has a groove 42. However, the present invention is not limited to this example, and one or the other side of the holding parts 40, 41 has a large or small diameter, and the other side of the holding part 41 is formed with the groove 42, or provided on both. Etc. (not shown). Furthermore, the structure which reverse | inverts the shape and / or structure, etc. of this holding part 40,41 of this one side and the other side is also possible. In any case, the ring-shaped locking portion 6 can be adopted as long as it can be easily, accurately, or quickly formed by simple, one-touch or the like. In the example in which the groove 42 is formed in the holding portion 40 on one side, the outer side of the ring-shaped locking portion 6 is held by the groove 42, so the ring-shaped locking portion 6 is mounted on the groove 42. And can be removed without fitting into the groove 42. Therefore, there is an advantage that it can be easily removed without damaging the conducting wire, which is useful. In addition, when providing the groove | channel 42 in a part or all the surrounding surface of the holding part 41 of the other side, the internal diameter gathered in the groove | channel 42 is a dimension suitable for a use.
Reference numeral 7 denotes an electrode terminal of the electric appliance 8. Reference numeral 9 denotes a covering cord of the conductive terminal 5.

FIG. 1 shows the first embodiment, and is an overhead view in which the holding part on one side has a small diameter and the holding part on the other side has a large diameter, and the diameter decreases toward the tip part. 1 to 4 in FIG. 2 are schematic views sequentially showing a process of forming a ring-shaped locking portion on a conductive terminal using the tool of the present invention, wherein 1 is a state of bending of the conductive terminal, and 2 is a ring shape. 3 shows a substantially ring-shaped molding, and 4 shows the completion of the ring-shaped molding. FIG. 3A is a perspective view showing a relationship between the connection terminal and the ring-shaped locking portion, and showing a state where both are separated from each other. FIG. 3-2 is a perspective view showing a relationship between the connection terminal and the ring-shaped locking portion, and a state in which both are fixed (locked). FIG. 4 is a plan view showing an example of an electrical appliance (breaker) for connection FIG. 5A shows a second embodiment, and is an overhead view in which the holding part on one side is formed to have a small diameter and the large diameter on the other side is indicated by a stick, and the diameter is reduced toward the tip part. FIG. 5-2 is a modification of FIG. 5-1, and is an overhead view of the main part of the configuration in which the holding part on one side has a small diameter with a groove. FIG. 6A shows a third embodiment, in which a holding part on one side has a small diameter, and a cylindrical part having a size suitable for the application is formed in a stepped manner on the other holding part in order, and toward the tip part. A small bird's-eye view FIG. 6-2 is a modification of FIG. 6-1, and is an overhead view of the main part of the configuration in which the holding part on one side has a small diameter with a groove. FIG. 7 is still another modification, and an overhead view in which cylindrical portions having dimensions suitable for the application are sequentially formed in a stepped manner in the holding portions on one side and the other side, and the diameter is reduced toward the tip portion. 8 in FIG. 1 to FIG. 8 is an example of forming a ring-shaped locking portion with a conventional radio pliers, and is a schematic front view showing a state of being sequentially bent along 1 to 6.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Tool 2 Gripping part 3 Pivoting part 4 Gripping part 40 One side clamping part 41 The other side clamping part 42 Groove 43 Cylinder part 43a Cylinder part 5 Conductive terminal 5a Approximate ring shape 50 Inner side 51 Outer part 6 Ring-shaped latching part 7 Electrode terminal 8 Electric appliance 9 Covering cord

Claims (3)

Forming a ring-shaped locking part forming tool at a cylindrical holding part with at least one side narrower toward the tip, and forming the conductive terminal of the wiring into the ring-shaped locking part using this holding part And a ring-shaped locking portion forming tool for a wiring conductive terminal, wherein the ring-shaped locking portion can be attached to the mounting portion of the terminal terminal. The other side of the gripping portion according to claim 1 is formed with a narrow diameter toward the tip, and a ring-shaped locking portion of a wiring conductive terminal configured to provide a groove in a portion that can ensure a dimension suitable for the application. Molding tool. The cylindrical gripping portion according to claim 1 is a ring-shaped locking portion forming tool for a wiring conductive terminal which is formed so as to have a narrow diameter toward the tip portion and sequentially form a cylindrical portion having a size suitable for the application.

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