JP5948702B2 - Pillar terminal and manufacturing method thereof - Google Patents

Description

  The present invention relates to a pillar terminal for fixing an electric wire inserted into a cylindrical terminal frame with a terminal screw and a method for manufacturing the pillar terminal.

  Conventionally, there has been known a pillar terminal in which a conductor conducting to an electrical contact of a switch circuit and an electric wire connected to the conductor are inserted into a cylindrical terminal frame, and are electrically connected and fixed by a terminal screw. (For example, refer to Patent Document 1).

JP 2011-108586 A

  However, the pillar terminal as shown in Patent Document 1 described above is a relay conductor, an electric wire, a terminal frame, and a terminal screw for electrically connecting the electric contact to the electric contact when the electric wire is electrically connected to the electric contact. One member is involved, and parts management and handling are complicated. It is desirable to make these easy to use and to further reduce costs.

  An object of the present invention is to solve the above-mentioned problems, and to provide a pillar terminal capable of realizing an easy-to-use and low-cost by integrating electric contacts as constituent members of a switch device, and a method for manufacturing the same. And

To achieve the above object, pillar terminal of the present invention includes a cylindrical pin frame, and the terminal screws for fixing the wire to be inserted into the terminal frame to the terminal frame, and a conductor which is electrically connected to the electric wire, in pillar terminal having a terminal frame consists frame formed on the iron cylindrical shape having two surfaces facing each other, the screw hole terminal screw is screwed on one side thereof, through the other side hole the have each an opening of the screw hole and the through hole are opposed to each other, the conductor is passed through a through-hole, and are fixed to the terminal frame with at caulking portions at both ends, the conductor of the end portion becomes the electrical contacts of the switching device pillar terminal is attached, the other end is Mase extraordinary into the terminal frame, the terminal screw is screwed into the screw hole, the other an inserted wire to the terminal frame conductor It is characterized in that the wire and conductor are electrically connected by pressing against the end.

In this pillar terminal, the other end portion of the guide body is preferably not larger than the opening of the screw hole.

In this pillar terminal, the terminal frame, the other end portion of the guide body frame inner surface in contact with its periphery may have a plating layer of high conductivity than iron.

In this pillar terminal, the terminal frame, a metal plate of high electric conductivity may be provided on the other end frame inner surface in contact with its surrounding guide member than iron.

In this pillar terminal, the terminal frame has a recess in the edge of the opening facing into the terminal frame of the through-hole, the conductor may be anti-rotation bite into the recess.

In this pillar terminal, the terminal frame, the conductors thus being secured on an insulating substrate as a constituent member of the switch, the terminal frame has a projecting portion on the surface facing the substrate, projecting portion on the substrate it may be anti-rotation Nde eating is included in the room rate.

Production method of the present invention is a method for producing any of the pillar terminal described above, the insertion step to protrude by inserting the other end portion opposite to the electrical contact of the conductor in the through hole in the terminal frame , introducing a punch for caulking the screw hole, characterized in that it comprises a crimping process for fixing the conductor to the terminal frame by caulking, the other end portion of the conductor projecting through the insertion step by the punch.

In this manufacturing method, the caulking process can be by processing the outer shape of the punch by protrude the conductive material shall be greater than the opening of the other end portion of the screw hole conductors widened by caulking .

  In this manufacturing method, the caulking step can suppress the formation of the edge by the presser plate that presses the material protruding from the outer shape of the punch.

  According to the pillar terminal and the manufacturing method thereof of the present invention, since the electric wire is electrically connected to the end of the conductor having the electrical contact fixed to the terminal frame by caulking, the number of parts at the time of incorporation is reduced and the usability is improved. In addition, since the terminal frame is made of iron, the cost can be reduced.

(A) is the perspective view which looked at the pillar terminal which concerns on one Embodiment of this invention from the screw hole side, (b) is the perspective view which looked at the pillar terminal from the electrical contact side, (c) is the pillar terminal FIG. (A) is sectional drawing which shows the example which incorporated the pillar terminal as a structural member of a switch apparatus, (b) is sectional drawing which shows the state in which the switch apparatus was closed. The flowchart which shows the manufacturing method of the pillar terminal. (A) is a cross-sectional perspective view of a state in which a punch is introduced in manufacturing the pillar terminal, and (b) is a cross-sectional perspective view of a state in which a contact conductor is caulked in manufacturing the pillar terminal. (A) is a cross-sectional perspective view showing a state after the closing of the pillar terminal, and (b) is a cross-sectional perspective view after the manufacture of the pillar terminal is completed. (A) is a cross-sectional perspective view of a state in which a punch is introduced during manufacture of a modified example of the pillar terminal, (b) is a cross-sectional perspective view of a state in which a contact conductor is caulked during manufacture of the modified example, and (c). FIG. 6 is a cross-sectional perspective view showing an end portion of a contact conductor widened by caulking. (A) is a cross-sectional perspective view of a state in which a pressing plate and a punch are introduced in manufacturing another modification of the pillar terminal, and (b) is another cross-sectional view showing the state of (a). (A) is sectional drawing of the state which crimped the conductor for contacts in the case of manufacture of the modification, (b) is sectional drawing of the state which removed the press plate and punch from the state of (a). (A) is a cross-sectional perspective view showing the end portion of the contact conductor widened by caulking, and (b) is a cross-sectional shot showing the end portion of the contact conductor widened by caulking of still another modification of the pillar terminal. Visual view. (A) is a cross-sectional perspective view of a state in which a punch is introduced during the manufacture of still another modified example of the pillar terminal, (b) is a perspective view showing the periphery of the through hole of the terminal frame of the modified example, and (c). FIG. 7 is a perspective view showing a cross section around the contact conductor according to the modification. (A) is a cross-sectional perspective view showing a terminal frame and a substrate of still another modified example of the pillar terminal separately, and (b) is a cross-sectional perspective view of a state in which a punch is introduced in manufacturing the modified example. (A) is a perspective view showing a cross section around the contact conductor of the modified example. (A) is a cross-sectional perspective view showing a terminal frame and a substrate of another modification of the pillar terminal separately, (b) is a perspective view showing a protrusion of the terminal frame of the modification, (c). Is a cross-sectional perspective view of the modification. (A) is a cross-sectional perspective view of still another modification of the pillar terminal, (b) is a cross-sectional view of a state in which an electric wire is electrically connected to the modification. (A) is a cross-sectional perspective view of still another modification of the pillar terminal, (b) is a cross-sectional view of a state in which an electric wire is electrically connected to the modification. (A) (b) (c) is sectional drawing which shows the crimping process of the further another modification of the same pillar terminal in order, (d) is sectional drawing of the state which electrically connected the electric wire to the modification. (A) (b) (c) is sectional drawing which shows the crimping process of the further another modification of the same pillar terminal in order, (d) is sectional drawing of the state which electrically connected the electric wire to the modification. (A) is a cross-sectional perspective view of still another modified example of the pillar terminal viewed from the screw hole side, and (b) is a perspective view of the modified example viewed from the electrical contact side. Sectional drawing which shows the example which incorporated the same modification as a structural member of a switch apparatus.

  Hereinafter, a pillar terminal and a manufacturing method thereof according to an embodiment of the present invention will be described with reference to the drawings. 1 and 2 show the pillar terminal 1. As shown in FIGS. 1A, 1B, and 1C, the pillar terminal 1 includes a cylindrical terminal frame 2 and a terminal screw 20. The terminal frame 2 is formed on a substrate 3 by a rivet-shaped conductor 4. It is fixed more integrally by caulking. The pillar terminal 1 is for fixing an electric wire (not shown) inserted into the terminal frame 2 with a terminal screw 20. The terminal frame 2 is composed of a frame formed in an iron cylinder shape having two surfaces facing each other. A screw hole 2a into which a terminal screw 20 is screwed is provided on one surface, and the terminal frame 2 is opposed to the screw hole 2a. A through hole 2b is provided on the surface. The conductor 4 has an electrical contact 4a of the switch device to which the pillar terminal 1 is attached at one end, and the other end passes through the through hole 3a of the substrate 3 and the through hole 2b of the terminal frame 2 to be inside the terminal frame 2. And fixed to the terminal frame 2 by caulking. Since the conductor 4 has the electrical contact 4a, it can also be called a contact conductor, is a caulking fixing conductor, and is also a connection conductor for the electric wire. When the terminal screw 20 is screwed into the screw hole 2a, the pillar terminal 1 presses the electric wire (not shown) inserted into the terminal frame 2 against the end portion 4b of the conductor fixed by caulking, thereby connecting the electric wire and the end portion. 4b is electrically connected, whereby the electric wire and the electrical contact 4a are electrically connected.

  The terminal frame 2 can be manufactured by press molding or bending using, for example, a cold-rolled steel plate and a steel strip (SPCC or the like). The dimensions of the terminal frame 2 are, for example, a plate thickness of 1 mm, a length (cylinder length) of 9 mm, a frame height of 8.5 mm, and a frame width of 6 mm, and the diameter of the through hole 2b is φ1.6 mm. For example, a steel strip having a width of 6 mm is wound into a square cylinder, and the screw hole 2a is overlapped to form a reinforcing structure. The contact conductor 4 is made of, for example, a copper material, and has an electric contact 4a portion having an appropriate outer dimension and a neck lower portion (for example, a diameter of 1.5 mm, a length under the neck) smaller than the outer diameter of the electric contact 4a. 4.0 mm) and a caulking member. In the caulking member, at least the electric contact 4a portion is plated, for example, gold-plated. The substrate 3 is an insulating material, and for example, a molded product of a resin or a resin containing a reinforcing material can be used.

  The pillar terminal 1 is used in combination with the switch device 5 as shown in FIGS. The switch device 5 includes a cover 50, a key 51 exposed from the cover 50, a coil spring 52 housed in the key 51, an operating piece 53 at the tip of the spring 52, a lever 54 that performs a seesaw operation by the operation of the operating piece 53, and a seesaw operation. The supporting conductor 55 is provided as a fulcrum. The switch device 5 including these is provided in a space facing the surface on which the electrical contact 4a of the substrate 3 integrated with the pillar terminal 1 is disposed. The substrate 3 is further provided with a terminal frame 2 similar to the terminal frame 2 in addition to the terminal frame 2 of the pillar terminal 1. The lever 54 includes an electrical contact 5a (moving contact), and performs a seesaw operation so that the electrical contact 5a is brought into contact with and separated from the electrical contact 4a (fixed contact) on the substrate 3. The key 51 is supported by a rotation shaft (not shown), and is rotatable as indicated by an arrow R in response to an on / off operation of the switch. The rotation shaft is fixed to the substrate 3. Yes. The support conductor 55 is disposed on the surface of the substrate 3 where the electrical contact 4a is disposed, and is fixed to the substrate 3 and the terminal frame 2 by caulking by the same conductor 4 as the contact conductor 4. Yes. The support conductor 55, the substrate 3, and the terminal frame 2 can be fixed by screw fastening without using caulking. In the state shown in FIG. 2A, the electric wire 10 connected to the pillar terminal 2 is electrically connected to the electric contact 4a, and the electric wire 10 connected to the other terminal frame 2 includes the conductor 4 and the support conductor. 55 and the electric contact 5a via the lever 54 and are in a non-conductive state. Further, in the state shown in FIG. 2B, as a result of the lever 54 being rotated by the operation of the key 51, the electrical contact 5a is electrically connected to the electrical contact 4a, and the two electric wires 10 are in a conductive state. ing.

  As described above, the pillar terminal 1 has a structure in which the electrical contact 4a is caulked and fixed directly to the iron terminal frame 2, so that a part of the pillar terminal 1 is inserted into a terminal frame used in a normal pillar terminal. Members such as a copper terminal board with contacts are not required. According to the pillar terminal 1, since the electric wire 10 is electrically connected to the end portion 4b of the conductor 4 which has the electric contact 4a and is fixed to the terminal frame 2 by caulking, the electric contact 4a and the terminal frame 2 There is no need for a connecting member (relay conductor) made of metal such as a separate copper plate for electrical connection. Thereby, material cost can be reduced, the number of parts at the time of assembly is reduced, and the usability of the pillar terminal 1 is improved. Furthermore, since the terminal frame 2 is made of iron, the material cost of the terminal frame 2 can be reduced as compared with the case where the terminal frame is made of copper, brass, or the like, as is normally done, and the pillar terminal 1 can be reduced. Cost reduction can be realized, and the size can be reduced by improving the strength.

  3 to 5 show a method for manufacturing the pillar terminal 1. As shown in FIG. 3, the manufacturing method of the pillar terminal 1 includes a step (S1) of manufacturing a cylindrical terminal frame 2 having a screw hole 2a and a through hole 2b, and an end portion of the conductor 4 into the through hole 2b. An insertion step (S2) for insertion and a caulking step (S3) for caulking the end of the conductor 4 are provided. In the terminal frame manufacturing step (S1), for example, a method of manufacturing a steel strip by winding it into a square cylinder as described above, or forming a screw pipe 2a and a through hole 2b by forming an iron pipe into a square cylinder. For example, a method of forming at a predetermined interval and cutting one after another based on the length of the terminal frame 2 can be used. This step (S1) can include a step of plating the terminal frame 2 for preventing corrosion. In the insertion step (S2), as shown in FIG. 4 (a), the end of the contact conductor 4 having an electrical contact 4a, which is opposite to the portion of the electrical contact 4a, is connected to the through hole 3b of the substrate 3. Then, it is inserted into the through hole 2 b of the terminal frame 2 and protrudes into the terminal frame 2. The protruding portion 40 serves as a caulking allowance for deformation by caulking. In the caulking step (S3), as shown in FIG. 4B, the punch 6 for caulking is introduced from the screw hole 2a, and the end portion (caulking allowance 40) of the conductor 4 protruding in the inserting step (S2) is punched. 6, the terminal frame 2 and the substrate 3 are fixed by the conductor 4 and integrated with each other. Thereafter, as shown in FIG. 5A, the punch 6 is removed, and the pillar terminal 1 is completed as shown in FIG. 5B. The screw formation by the tap in the screw hole 2a may be performed at any time before or after the caulking step (S3). In the caulking process, for example, the screw hole 2a is for an M4 screw (outer diameter is about 4 mm), the neck dimension of the contact conductor 4 is a diameter of 1.5 mm, the length is 4.0 mm, the thickness of the board 3 is 1.5 mm, etc. In this case, for example, the punch 6 having an outer diameter of 3 mm is used with a press load of 400 kg. In this case, for example, an end 4b having an outer diameter φ2.61 mm is obtained. Further, the caulking step (S3) may be performed by one load operation, or the punch 6 is moved up and down a plurality of times to change the load or change the punch lowering speed each time. You may carry out by the load operation of 1 time.

  6A, 6B, and 6C show a modification of the pillar terminal and a manufacturing method thereof. The pillar terminal 1 has an end 4b of a conductor 4 widened by caulking so as to be larger than an opening of the screw hole 2a. For example, as shown in FIG. 6A, such an end 4b is formed by using a conductor 4 in which the length and diameter of the caulking allowance 40 deformed by caulking are increased to increase the volume of the caulking allowance 40. It is formed. In the caulking process of the manufacturing method, as shown in FIG. 6 (b), the material of the conductor 4 protrudes from the outer shape of the punch 6, and the end 4b of the conductor 4 widened by caulking is threaded. It is larger than the opening 2a. Here, if each dimension is a dimension D of the screw hole 2a, an outer diameter d1 of the punch 6, an outer diameter d2 of the caulking allowance 40 of the conductor 4, and an outer diameter d3 of the end portion 4b of the conductor 4, d2 <d1 <D <D3. Here, for example, when the neck size of the contact conductor 4 is 2.0 mm in diameter and 5.0 mm in length, and the outer diameter of the punch 6 is 3 mm, the short diameter is 3.8 mm, the long diameter is 4.6 mm, and the thickness is 0.41 mm. An elliptical end 4b could be formed. The reason why the end 4b is elliptical is that, for example, the inner surface of the terminal frame 2 in which the through hole 2b is open is not flat. Since the pillar terminal 1 having such an end portion 4b has a wide end portion 4b as a portion that comes into electrical contact with the electric wire inserted into the terminal frame 2, the electrical connection between the electric wire and the conductor 4 is more reliable. It is good and can be performed more reliably, and the electrical conductivity can be improved. Further, as shown in FIG. 6C, a burr 4 c (projecting portion) made of the material of the conductor 4 protruding from the outer shape of the punch 6 is usually formed around the end portion 4 b. In the case of such an appropriate height and shape, the burr 4c contributes to an improvement in the function of electrical connection and mechanical holding by biting into the electric wire when connecting the electric wire and the end 4b. However, excessive burr 4c is not preferable.

  7, 8, and 9 show another modification of the pillar terminal and a manufacturing method thereof. This suppresses the burr 4c in the above-described modification from becoming excessive. In the caulking process of this manufacturing method, as shown in FIGS. 7A and 7B, by using a pressing plate 7 for pressing the material protruding from the outer shape of the punch 6, the tip protruding portion grows when the burr 4c is formed. Suppress. By suppressing the growth, the formation of the edge generated in the burr 4c due to the material of the conductor 4 protruding from the outer shape of the punch 6 is suppressed. The holding plate 7 has a through hole 7 a into which the punch 6 can be inserted, and is disposed in the terminal frame 2 coaxially with the punch 6 and with the caulking allowance 40 of the conductor 4 inserted through the through hole 7 a. When the caulking process is performed under such an arrangement, the material of the conductor 4 protruding from the outer diameter of the punch 6 is deformed so as to sink into the lower portion of the pressing plate 7 as shown in FIG. As a result, as shown in FIGS. 8B and 9A, an end portion 4b having an outer edge portion 4d that is lower than the inner surface and having no edge formation is obtained. The end 4b of such a structure is due to the fact that the punch 6 has been caulked inside the through hole 7a of the pressing plate 7. Therefore, for example, when the caulking is completed in a state where the punch 6 has penetrated the through hole 7a of the pressing plate 7, as shown in FIG. 9B, an end having an outer edge portion 4d that is higher than the inner surface. Part 4b is obtained. In any case, an edge 4b having excellent electrical connection and having an area wider than the diameters of the punch 6 and the screw hole 2a is obtained.

  10A, 10B, and 10C show still another modified example of the pillar terminal and a manufacturing method thereof. The terminal frame 2 of the pillar terminal 1 has two recesses 2c at the opening edge facing the terminal frame of the through hole 2b. The concave portion 2c can be simultaneously formed using, for example, a punching punch or a shape formed in a die when the through hole 2b is formed by punching. The conductor 4 after the caulking process has a biting portion 4e in which the caulking allowance 40 is deformed, and the biting portion 4e bites into the concave portion 2c. The recess 2c is formed in two locations, for example, so as to have a rotationally asymmetric shape with respect to the central axis of the through hole 2b. Therefore, the conductor 4 is prevented from rotating with respect to the terminal frame 2 by the rotationally asymmetrically arranged concave portion 2c and the biting portion 4e. The terminal frame 2 is mounted on a curved bottom portion having a through hole 2 b in a U-groove-shaped recess on the upper surface of the substrate 3, and is integrated with the substrate 3 by caulking of the conductor 4. Accordingly, rotation prevention between the terminal frame 2 and the substrate 3 is performed by fitting the curved bottom portion and the U-shaped recess.

  11 (a), 11 (b), and 12 show still another modification of the pillar terminal and a manufacturing method thereof. The terminal frame 2 of the pillar terminal 1 is obtained by further strengthening the prevention of rotation between the terminal frame 2 and the substrate 3 in the pillar terminal 1 shown in FIG. In addition to the recess 2c, the terminal frame 2 is formed on the surface opposite to the surface where the recess 2c is formed, that is, the surface facing the substrate 3 so as to be rotationally asymmetric with respect to the central axis of the through hole 2b. For example, it has two protrusions 2d. Further, the substrate 3 has two recesses 3b at the opening edge of the through hole 3a facing the terminal frame 2, and each recess 3b is formed so as to be fitted to each protrusion 2d of the terminal frame 2. Has been. Therefore, in a state where the terminal frame 2 and the substrate 3 are integrated with each other by caulking of the conductor 4, the rotation prevention between the terminal frame 2 and the substrate 3 is strengthened by the fitting of the protrusions 2d and the recesses 3b. Yes.

  In addition, the pillar terminal 1 of FIGS. 13A, 13B, and 13C has protrusions 2e at both ends of the lower surface of the terminal frame 2 in place of the protrusion 2d of the terminal frame 2, and the substrate 3 described above. Instead of the concave portion 3b, a concave portion 3c is provided at a position corresponding to the protruding portion 2e. The pillar terminal 1 having this configuration is the length of the arm of the rotational moment that contributes to rotation prevention with respect to the rotation between the terminal frame 2 and the substrate 3, that is, from the central axis of the conductor 4 to the protrusion 2e and the recess 3c. Since the distance is long, the rotation can be prevented more effectively. In the case of the protrusion 2 d shown in FIG. 12, the length of the arm of the rotational moment is about the radius of the conductor 4.

  FIG. 14 shows still another modification of the pillar terminal. As shown in FIG. 14A, the pillar terminal 1 has a plating layer 21 having a higher conductivity than iron on the inner surface of the terminal frame 2. Such a plating layer 21 may be at least on the inner surface of the terminal frame 2 and the periphery thereof where the end 4b of the conductor 4 expanded by caulking contacts. For example, the plating layer 21 is formed on the inner surface of the terminal frame 2 before the step of caulking the conductor 4. The plating layer 21 and the conductor 4 are electrically connected to each other on the back surface of the end portion 4b widened by caulking. As shown in FIG. 14B, the pillar terminal 1 is detached from the end 4b when the electric wire 10 made of a plurality of copper wires is pressed against the end 4b by the terminal screw 20 to be electrically connected. A copper wire can be electrically connected to the conductor 4 via the plating layer 21.

  By the way, in the case of a pillar terminal in which a contact conductor is caulked and joined to a brass terminal frame that has been conventionally used, the copper wire that comes off from the end of the contact conductor and contacts the terminal frame passes through the brass terminal frame. And can be electrically connected to the contact conductor. Since the pillar terminal 1 using the iron terminal frame 2 has an iron conductivity lower than that of brass, the copper wire disconnected from the end 4b and the conductor 4 can be electrically connected in a state of lower electrical resistance. In order to make the connection, the plating layer 21 is used. The plating layer 21 is relatively inexpensive and can be expected to improve corrosion resistance. From the viewpoint of good electrical conductivity, for example, galvanization can be suitably used. The pillar terminal 1 having such a configuration can be manufactured at a lower cost by using the iron terminal frame 2 than by using the brass terminal frame, and by using the plating layer 21, Electrical connection equivalent to the case of using a brass terminal frame can be performed. The plating layer 21 substantially expands the area of the end 4b. According to the pillar terminal 1, even when the electric wire 10 overflows from the end 4 b of the contact conductor 4, it is possible to avoid a situation in which electricity flows to the iron terminal frame and generates heat, and energization can be more reliably maintained. it can.

  FIG. 15 shows still another modification of the pillar terminal. As shown in FIG. 15 (a), the pillar terminal 1 is formed by caulking a metal plate 22 having a higher conductivity than iron instead of the plating layer 21 in the pillar terminal 1 shown in FIGS. 14 (a) and 14 (b). It is provided by caulking on the inner surface of the frame where the end portion 4b of the conductor 4 expanded by the contact and the periphery thereof are in contact. In the manufacturing method, before the step of caulking the conductor 4, the metal plate 22 having a through hole is disposed in the terminal frame 2 with the contact conductor 4 inserted through the through hole, and the metal plate 22 is disposed in the terminal frame 2. What is necessary is just to caulk the conductor 4 so that it may be pinched | interposed between the inner surface of this, and the back surface of the edge part 4b. As the metal plate 22, for example, a copper plate or a brass plate can be used. The pillar terminal 1 having the metal plate 22 has the same effect as the pillar terminal 1 having the plating layer 21 described above. Moreover, compared with the case where the plating layer 21 is formed, a plating processing facility is unnecessary, and it can be manufactured more easily.

  FIGS. 16A to 16D show still other modified examples of the pillar terminals. The pillar terminal 1 is formed so that the upper surface of the metal plate 22 in the pillar terminal 1 shown in FIGS. 15A and 15B is flush with the end portion 4 b of the conductor 4. As shown in FIG. 16 (a), the metal plate 22 has a recessed portion 22a formed by pressing at the center, and the terminal frame 2 has a recessed portion 2f in which a protruding portion 22b corresponding to the recessed portion 22a of the metal plate 22 is accommodated. have. As shown in FIGS. 16B and 16C, the end portion 4 b of the conductor 4 is formed flush with the upper surface of the metal plate 22 by caulking the caulking allowance 40 of the conductor 4. As shown in FIG. 16 (d), the electric wire 10 can be stably electrically connected to the end portion 4 b provided with a substantially wide electric contact surface by the metal plate 22.

  In the pillar terminal 1 of FIGS. 17A to 17D, the concave portion 22a is formed on the metal plate 22 in the pillar terminal 1 shown in FIGS. 16A to 16D without forming the convex portion 22b. It is a thing. That is, as shown to Fig.17 (a), the metal plate 22 has the recessed part 22a in the thickness. As shown in FIGS. 17B and 17C, the end portion 4 b of the conductor 4 is formed flush with the upper surface of the metal plate 22 by caulking the caulking allowance 40 of the conductor 4. As shown in FIG. 17 (d), the electric wire 10 can be stably electrically connected to the end portion 4 b that has a substantially wide electric contact surface by the metal plate 22.

  18A and 18B show still another modification of the pillar terminal, and FIG. 19 shows a switch device using the pillar terminal. As shown in FIGS. 18 (a) and 18 (b), the pillar terminal 1 is not configured to have the substrate 3 shown in FIGS. 1 (a), (b), and (c), but the electrical contacts 4a are directly connected to the terminal frame 2. The conductor 4 is fixed by caulking. As shown in FIG. 19, such a pillar terminal 1 is fixed to an electrically insulating substrate 30 by a mounting screw hole (not shown) provided in the terminal frame 2, and the electrical contact 4a is connected to the switch device. 5 can be used as a contact point. The pillar terminal 1 includes a fixing iron piece extended to the terminal frame 2 as a structure for fixing to the substrate 30, or a notch, a recess, and the like for facilitating fixing of the terminal frame 2 from the substrate 30 side. A structure such as a protrusion or a groove can be provided. Further, the pillar terminal 1 may be integrally formed on the substrate 30 by insert molding, for example.

  The present invention is not limited to the above-described configuration, and various modifications can be made. For example, the configurations of the above-described embodiments can be combined with each other.

DESCRIPTION OF SYMBOLS 1 Pillar terminal 2 Terminal frame 2a Screw hole 2b Through-hole 2c Recessed part 2d Protrusion part 20 Terminal screw 21 Plating layer 22 Metal plate 3 Substrate 4 Conductor (conductor for contact)
4a Electrical contact 4b End 5 Switch device 6 Punch 7 Holding plate 10 Electric wire

Claims (9)

A tubular pin frame, the terminal screw to be fixed to the terminal frame of the wire to be inserted into the terminal frame, and a conductor which is electrically connected to the electric wire, the pillar terminal comprising,
The terminal frame consists frame formed on the iron cylindrical shape having two surfaces facing each other, a screw hole into which the terminal screw on one surface thereof is screwed, the other side into the through hole, the screw Each has a hole and an opening in the through hole facing each other ,
Said conductor, the passed through the through hole, and are fixed to the terminal frame with at caulking portions at both ends, one end of the conductor becomes the electrical contacts of the switching device pillar terminal is mounted, the other the end is Mase extraordinary within the terminal frame,
The terminal screw, the threaded into the screw hole, the pillar terminals, characterized in that the inserted wires into the terminal frame for electrically connecting the electric wire against the other end of the conductor the conductor. Other ends of the front Symbol conductor pillar terminal according to claim 1, characterized in that not greater than the opening of the screw hole. The terminal frame, pillar according to claim 1 or claim 2, characterized in that the other end is a frame inner surface in contact with its surroundings before Symbol conductor has a plating layer of high conductivity than iron Terminal. The terminal frame, any one of claims 1 to 3, characterized in that it comprises a metal plate of high electric conductivity other end frame inner surface in contact with its surroundings before Symbol conductor than iron Pillar terminal described in 1. The terminal frame has a recess in the edge of the opening facing the terminal frame of the through-hole, said conductor, claims 1 to, characterized in that it is anti-rotation bite before Symbol recess Item 5. The pillar terminal according to any one of items 4 to 5. The terminal frame, the guide body thus fixed to the insulating substrate as a constituent member of the switch, the terminal frame, has a protrusion on a surface facing the substrate, projecting portion on the substrate claims 1 to pillar terminal according to any one of claims 5, characterized in that it is prevented rotated Nde eating rate. In the manufacturing method of the pillar terminal according to any one of claims 1 to 6,
An insertion step to protrude into the terminal frame by inserting the other end said of the site of the electrical contacts the opposite side of the conductor in the through hole,
Introducing a punch for caulking from the threaded hole, characterized in that it comprises a crimping process for fixing the conductor to the terminal frame by caulking by the punch and another end portion of the conductor projecting by said inserting step A method for manufacturing pillar terminals. The crimping step, by processing by protrude material of the conductor from the outer shape of the punch, characterized by greater than the other end portion of the conductor widened by the crimping opening of the threaded hole The manufacturing method of the pillar terminal of Claim 7.   9. The method of manufacturing a pillar terminal according to claim 8, wherein the caulking step suppresses formation of an edge by the material using a pressing plate that presses the material protruding from the outer shape of the punch.

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