JP5000454B2 - Crimping tool - Google Patents

Description

  The present invention relates to a crimping tool for connecting a coated electric wire used for a telephone line or the like with a crimp terminal with a cutter.

  As is well known, a covered electric wire with a core wire is used for an electric wire such as a telephone line. In order to connect the covered electric wire to the crimp terminal or the crimp connector, a crimping tool or a connection tool such as a pliers is used. Such a plier will be described with reference to FIGS. 17 (a) and 17 (b). FIG. 17A shows an example of use in which a coated wire is crimped and connected to a terminal using a pliers. The pliers 1 switches the position of the opening / closing fulcrum pin 1c so that the workpiece clamping surfaces 1a and 1b are opened in an open state, and a terminal crimping jig 2 is bonded between the workpiece clamping surfaces 1a and 1b. The tapes 6a and 6b are bonded or magnetized and magnetized. The terminal crimping jig 2 includes a crimping recess 2a having a recess 2b and a crimping projection 2c having a projection 2d. The crimping recess 2a is provided on the workpiece clamping surface 1a, and the crimping projection 2c is provided on the workpiece clamping surface 1b. A terminal pin 4 into which the core wire of the covered electric wire 5 is inserted is placed in the crimp recess 2b, and the terminal crimping jig 2 is sandwiched between the workpiece clamping surfaces 1a, whereby the core wire of the covered electric wire 5 is inserted into the core wire clamp portion of the terminal pin 4. Are sandwiched and connected. The terminal pin 4 may be a curled terminal having a crimped portion 4b as shown in FIG.

In the above terminal, the coated wire is peeled off and the core wire is exposed, and then crimped and connected using a pliers and a terminal crimping jig. Crimp connectors shown in FIGS. 18 (a), 18 (b), and 19 are used for multicore connection, which requires time and is complicated. 18 (a), 18 (b), and 19 are composed of a box-like portion 7a and a lid-like portion 7b connected to the box-like portion 7a through a bent portion 7c. FIG. The external shape which does not connect the covered electric wire to the connector 7 is shown. FIG. 19 shows an appearance in which the secondary side covered electric wire W1 and the secondary side covered electric wire W2 are respectively connected to the crimping connector. Box-shaped portion 7a is made two-compartment between the primary side connection portion ₇₁ and the secondary-side connection section 7 _2, bifurcated electrode pieces 8a which are connected to one another, forked portion of 8b is a primary-side connecting portion ₇₁ secondary respectively provided on the side connection portion 7 _2, likewise bifurcated electrode pieces 9a, 9b are provided in the box-shaped portion 7a, and the primary side connecting portion ₇₁ side cut portion 10 by the cutter for cutting the covered wire Is provided. The bifurcated portions of the bifurcated electrode pieces 8a and 8b are connected to each other by the same member, and the bifurcated electrode pieces 9a and 9b are the same. When the box-shaped part 7a is closed with the lid-like part 7b by crimping, the coated film of the covered electric wire is torn at the forked part while pressing the covered electric wire placed on the bifurcated part with the lid-like part 7b. The core wires of the primary side covered electric wire W1 and the secondary side covered electric wire W2 are connected to each other in contact with the core wire. In addition, although the crimping connector 7 is provided with a pressing portion of the covered electric wire, a locking portion where the box-like portion 7a and the lid-like portion 7b are fitted, a detailed description thereof is omitted.

Japanese Patent Laid-Open No. 2002-190366 (full description, full view)

  In the conventional crimping tool, when performing the wiring work using the above-mentioned crimping connector, for example, it is necessary to provide a crimping jig on both work surfaces of the pliers and fix the crimping connector to perform the wiring work. After connecting the primary side, it is necessary to change the position of the crimp connector and perform the secondary side connection, which is not workable. It was necessary to develop a crimping tool suitable for a simple crimping connector. Furthermore, the wiring work of the crimping connector is an operation in which a large number of covered electric wires cross together, and when the crimping part is inserted into many other wirings, the wiring work can be performed without damaging the other wirings. It was desired and the crimping tool itself was required to be small. Further, there are crimp connectors having different sizes, and it has been desired that one tool can cope with these sizes.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a crimping tool that makes it easy to perform a connection work using a crimp terminal with a cutter even if the coated electric wire is multi-core.

  The present invention achieves the above-mentioned problems, and the invention according to claim 1 is a crimp terminal holding member in which a crimp terminal block is slidably provided at a tip portion, and a crimp mounted on the crimp terminal block. A driven pressure-bonding member provided with a pressing portion for pressing a terminal at a tip portion; and a pressure-bonding lever member that applies a pressing force to the pressure-bonded terminal placed on the pressure-bonding terminal block, the pressure-bonding terminal holding member and the driven While pivotally supporting the rear end of the crimping member and the crimping lever member, one end of the link member is pivotally supported by the crimping terminal holding member on the rear end side of the crimping terminal block, and connected to the other end of the link member. One end of the lever member is pivotally supported, the connecting lever member is pivotally supported by the driven crimping member, and the other end of the connecting lever member is brought into contact with the inner wall surface side of the crimping lever member, and the link member and the coupling are connected. A spring is provided on a support shaft that pivotally supports the lever member to So as to urge the lever member, a crimping tool, characterized in that for connecting the covered wire to the crimp terminal to grasp and said pressure lever member and the crimp terminal holding member.

  The invention according to claim 2 is characterized in that the crimp terminal block has a mounting surface on which the crimp terminal is mounted, a holding portion main body having a protruding portion that supports one side wall of the crimp terminal, and the crimping of the mounting surface. 2. A holding member with a lever for holding the terminal between the protruding portions, and an adjusting lever member for adjusting the position of the holding member with the lever according to the size of the crimp terminal. The crimping tool described.

  According to a third aspect of the present invention, the mounting surface of the crimp terminal of the crimp terminal block is connected with a crimp mounting portion that closes the cover of the crimp terminal and connects the covered wire with a cutter provided on the crimp terminal. The crimping tool according to claim 1, further comprising a placement portion for cutting the wiring.

  According to a fourth aspect of the present invention, there is provided a clamping spring with a lever that can project the crimp terminal block from the tip end portion of the crimp terminal holding member or can be pulled into the crimp terminal holding member. The crimping tool according to claim 1, 2 or 3, wherein the crimping tool is provided.

  The invention according to claim 5 is characterized in that a regulating member for regulating a movable distance of the holding spring with lever in the crimp terminal holding member is provided on an inner wall surface of the crimp terminal holding member. It is a crimping tool as described in above.

  According to a sixth aspect of the present invention, the front crimping terminal block has a mounting portion on which the crimping terminal is placed and a rear end portion extending rearward from the mounting portion, and the crimping terminal holding member; A long hole-like through-hole through which a support shaft that pivotally supports the link member is provided at the rear end portion, and a spring that applies sliding resistance to the crimp terminal block and is slidable in the front-rear direction. The crimping tool according to claim 1, 2 or 3, wherein the crimping tool is provided at a rear end portion.

  The invention according to claim 7 is characterized in that a concave portion or a convex portion that sets the slidable range of the crimp terminal block by contacting the spring is provided on the inner wall surface of the crimp terminal holding member. Item 7. The crimping tool according to Item 6.

  The invention according to claim 8 has first and second rotating shafts with which the holding member with lever and the adjusting lever member are engaged with each other, and the axial centers of the first and second rotating shafts are The crimping tool according to any one of claims 2 to 7, wherein an axis center of a rotation shaft of the holding member with a lever is provided at a distant position.

  According to the first aspect of the present invention, the crimp terminal block is slidably provided at the distal end portion, and the crimp terminal holding member and the follower provided with the pressing portion for pressing the crimp terminal placed on the crimp terminal block are provided at the distal end portion. A crimping member, and a crimping lever member that applies a pressing force to the crimping terminal placed on the crimping terminal block, and the rear end portions of the crimping terminal holding member, the driven crimping member, and the crimping lever member are pivoted And one end of a link member is pivotally supported on the crimp terminal holding member on the rear end side of the crimp terminal block, one end of a connecting lever member is pivotally supported on the other end of the link member, and the connecting lever member The connecting lever member is pivotally supported on the driven crimping member, the other end of the connecting lever member is brought into contact with the inner wall surface of the crimping lever member, and a spring is provided on a support shaft that pivotally supports the link member and the connecting lever member. The crimping lever member is urged and the crimping end Since it is a crimping tool characterized by grasping the holding member and the crimping lever member and connecting the coated wire to the crimping terminal, the crimping terminal into which the coated wire is inserted is placed on the crimping terminal block, and the crimping terminal By grasping the holding member and the crimp lever member with one hand, there is an advantage that the coated wire can be easily connected to the crimp terminal. In addition, the crimping part (work part) is provided in front of the gripping part, and there is an advantage that other wiring can be avoided during the wiring work. There is an advantage that the crimping part can be inserted and operated without damaging the wire.

  According to a second aspect of the present invention, the crimp terminal block includes a mounting surface on which the crimp terminal is mounted, a holding body having a protruding portion that supports one side wall of the crimp terminal, and the crimping of the mounting surface. 2. A holding member with a lever for holding the terminal between the protruding portions, and an adjusting lever member for adjusting the position of the holding member with the lever according to the size of the crimp terminal. Since it is the described crimping tool, there is an advantage that by operating the adjustment lever member, crimp terminals having different sizes can be clamped on the mounting surface of the holding unit main body between the convex strip and the holding member with the lever.

  According to a third aspect of the present invention, the mounting surface of the crimp terminal of the crimp terminal block is connected by a crimp mounting portion that closes the lid of the crimp terminal and connects the coated wire and the cutter provided on the crimp terminal. The crimping tool according to claim 1, wherein the crimping tool has a mounting portion for cutting the wiring, and therefore, the connecting operation of the covered wire and the cutting operation of the coated wire are performed using different mounting portions. There is an advantage that the workability of the wire connection work of the crimp terminal with the cutter can be improved.

  According to a fourth aspect of the present invention, a clamping spring with a lever capable of projecting the crimp terminal block from the tip of the crimp terminal holding member or drawing it into the crimp terminal holding member is provided in the crimp terminal holding part. The crimping tool according to claim 1, 2, or 3, wherein the primary side connection and the secondary side connection are optimally operated by operating a holding spring with a lever. There is an advantage that the wiring work can be performed by setting it at the crimping position, and the workability of the wiring work of the crimp terminal with the cutter can be improved.

  The invention according to claim 5 is characterized in that a regulating member for regulating a movable distance of the holding spring with lever in the crimp terminal holding member is provided on an inner wall surface of the crimp terminal holding member. Therefore, the clamping spring with lever can smoothly slide in the crimp terminal holding member, and there is no fear that the crimp terminal block jumps out of the crimp terminal holding member. There is an advantage that an easy-to-use crimping tool can be provided.

  According to a sixth aspect of the present invention, the front crimp terminal block has a placement portion on which the crimp terminal is placed and a rear end portion extending rearward from the placement portion, and the crimp terminal holding member; A long hole-like through-hole through which a support shaft that pivotally supports the link member is provided at the rear end portion, and a spring that applies sliding resistance to the crimp terminal block and is slidable in the front-rear direction. The crimping tool according to claim 1, 2 or 3, characterized by having a rear end portion, so that the crimping terminal block does not slide without a track in the front-rear direction and is stable when operating the crimping tool. However, there is an advantage that the crimping operation is easy.

  According to a seventh aspect of the present invention, the inner surface of the crimp terminal holding member has a concave portion or a convex portion that sets the slidable range of the crimp terminal block by contacting the spring. Since it is a crimping tool of claim | item 6, when operating a crimping tool, a crimping terminal block can be fixed in a predetermined position, and there exists an advantage that a crimping | crimping process operation is easy.

  According to an eighth aspect of the present invention, the holding member with lever and the adjustment lever member have first and second rotating shafts that are engaged with each other, and the axial centers of the first and second rotating shafts are The size of the crimp terminal of the crimp terminal block is the crimp tool according to any one of claims 2 to 7, wherein the center of rotation of the holding member with lever is provided at a distant position. There is an advantage that the holding member with a lever can be adjusted according to the above.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 to 14 are diagrams for explaining a crimping tool according to an embodiment of the present invention, and FIGS. 15 to 19 are diagrams for explaining a crimping tool according to another embodiment of the present invention. is there. FIGS. 1A and 1B are side views showing a crimping tool according to an embodiment of the present invention. FIG. 1A shows a state in which the crimping tool is opened, and FIG. It is a side view which shows the state which carried out. 2 to 5 show the respective parts of the present embodiment. FIGS. 2A and 2B are crimping lever members, FIGS. 3A and 3B are driven crimping members, and FIGS. FIG. 5B shows the crimp terminal holding member, and FIGS. 5A and 5B show the link member and the connecting lever member. FIG. 6 is an assembly perspective view of the crimp terminal block according to the present embodiment. FIG. 7A is a holding body of the crimp terminal block, FIG. 8 is a holding member with a lever, and FIG. 9 is a biasing holding member with a lever. 10 (a) and 10 (b) are connecting shaft members, and FIG. 11 is an adjusting lever member. FIG. 12 is an exploded perspective view of the crimp terminal holding portion. FIGS. 13A, 13B, 14A, and 14B are side views showing a connection work process of a crimp terminal with a cutter. 15 (a) and 15 (b) show another embodiment of the present invention, and FIG. 16 is an exploded perspective view of an essential part thereof.

  As shown in FIG. 1A, the crimping tool according to the present embodiment presses the crimp terminal holding member 11 provided with the crimp terminal block 17 at the tip and the crimp terminal placed on the crimp terminal block 17. The pressing part 18 has a driven crimping member 13 provided at the tip part, and a crimping lever member 14 for applying a pressing force to the crimping terminal placed on the crimping terminal base 17, and the crimping terminal holding member 11 and the driven crimping. The member 13 and the crimp lever member 14 are pivotally supported by a support shaft 19 inserted through a support member 12 provided at the rear end portion of the crimp lever member 14, and a crimp terminal holding member on the rear end side of the crimp terminal base 17. 11, one end of the link member 15 is pivotally supported by the support shaft 20, the other end of the link member 15 is pivotally supported by one end of the connecting lever member 16, and the connecting lever member 16 is supported by the driven crimping member 13 by the support shaft 22. The connecting lever member 16 is pivotally supported. The end is brought into contact with the crimping lever member 14 on the inner wall surface side, and a spring 23 is provided on the support shaft 21 that pivotally supports the link member 15 and the connecting lever member 16 so that the crimping lever member 14 is expanded. Has been made. By grasping the crimp terminal holding member 11 and the crimp lever member 14 with one hand, the crimp terminal holding member 11 and the crimp lever member 14 are closed, and the crimp terminal with a cutter placed on the crimp terminal base 17 is covered. Wires are connected, and unnecessary covered wires can be cut as necessary.

  Then, each member of the said embodiment is demonstrated with reference to FIGS. First, as shown in FIGS. 2A and 2B, the pressure-bonding lever member 14 is a U-shaped cross-section member that presses the connecting lever member 16, and has a projecting piece 14a at the rear end thereof. Is formed, a through hole 14b through which the support shaft 19 is inserted is provided in the projecting piece portion 14a, a guide projection 14c is provided on the inner wall thereof, and the guide projection 14c regulates the maximum opening degree of the crimping lever member 14. It is a member.

  As shown in FIG. 3 (a), the driven crimping member 13 is provided with a through hole 13 a to which a pressing portion 18 for pressing the crimp terminal with a cutter is attached at the tip, and from the center of the driven crimping member 13. A through hole 13b is provided on the distal end side, and a support shaft 21 that allows the connecting lever member 16 to rotate is inserted through the through hole 13b. In addition, a guide protrusion 14c provided on the pressure-bonding lever member 14 is fitted to the rear end portion of the driven pressure-bonding member 13, and a sliding arc-shaped guide groove 13d is provided, and the support shaft 19 is inserted therethrough. A hole 13c is provided. The arcuate guide groove 13d regulates the range in which the guide protrusion 14c rotates, and regulates the maximum expansion angle of the crimp lever member 14. Further, the driven crimping member 13 is combined so that the upper end portion side is accommodated in the crimping lever member 14 as shown in FIGS.

  As shown in FIG. 4A, the crimp terminal holding member 11 has a bearing member 11b fixed to the rear end thereof by welding, and a long hole-shaped guide hole 11c is provided at the bottom of the front end side of the holding member main body 11a. A through hole 11d through which the support shaft 20 that pivotally supports the link member 15 is inserted is provided at the rear end portion of the guide hole 11c, and a projection 11f is provided in the front-rear direction on one side inner wall surface behind the center portion. A protrusion 11e is formed on the inner wall surface on the opposite side, and a through hole 11g through which the support shaft 19 is inserted is provided in the bearing member 11b. A guide hole 11 c provided at the distal end portion of the crimp terminal holding member 11 regulates a range in which the crimp terminal block 17 can slide in the front-rear direction.

  The link member 15 and the connecting lever member 16 are members that transmit the force applied to the pressure-bonding lever member 14 to the driven pressure-bonding member 13 using the lever principle, and are provided at one end of the link member 15 as shown in FIG. The support shaft 20 is inserted into the formed through hole 15 a and is pivotally supported by the crimp terminal holding member 11, and the through hole 15 b provided at the other end of the link member 15 and the through hole provided at one end of the connecting lever member 16. The support shaft 21 is inserted into the hole 16 a so that the link member 15 and the connecting lever member 16 are pivotally supported. Further, the through hole 16 c provided in front of the central portion of the connecting lever member 16 and the through hole of the driven pressure bonding member 13. The connecting lever member 16 is pivotally supported by the driven crimping member 13 through the support shaft 22 through 13b, the rear end portion of the connecting lever member 16 has a curved shape, and the curved portion 16d is formed by the crimping lever member 14. An upper inner wall surface are abuts slide easily.

  Next, the crimp terminal block 17 provided at the tip of the crimp terminal holding member 11 will be described with reference to FIGS. 6 and 7A and 7B. The crimping terminal block 17 is provided with a mounting surface 17a on which a crimping terminal is placed, bearing through holes 17b are provided, sliding notches 17d are provided on both sides of the crimping terminal block 17, and the sliding notch 17d is provided on the sliding notch 17d. The tip end portion of the crimp terminal holding member 11 is inserted to allow the crimp terminal block 17 to be slid. A protruding portion 17c is formed at one end portion of the mounting surface 17a, and it is released adjacent to the protruding portion 17c. A groove 17e is provided, a spring housing groove 17g drilled from the mounting surface 17a is provided, a plate-like protrusion 17h protruding from the rear of the crimp terminal block 17 is provided, and a rear end of the plate-like protrusion 17h is provided. A through hole 17f is provided.

  As shown in FIGS. 1A and 1B, the adjustment lever member 25 is fixed to the crimp terminal block 17 with a screw 28 that penetrates the crimp terminal block 17, and is placed on the mounting surface 17 a side of the crimp terminal block 17. The lever holding member 24 is provided so as to rotate about the screw 28 as an axis. As shown in FIG. 8, the holding member with lever 24 is provided with a holding portion 24a, a lever portion 24c protrudes in a direction orthogonal to the holding portion 24a, and a through hole 24d is formed at an intersection of the holding portion 24a and the lever portion 24c. The notch part 24b is provided in the holding | maintenance part 24a. The holding member 24 with the lever is urged toward the convex portion 17c by the spring 26 (FIG. 9) in which the holding portion 24a is housed in the spring housing groove 17g of the crimp terminal block 17, and is placed on the placement surface 17a. The pressed crimp terminal with the cutter is pressed and held on the protruding portion 17c side. The holding member 24 with lever and the adjustment lever member 25 are supported by bearing through holes 17 b provided at the rear end of the crimp terminal block 17 at the shaft portions.

  Further, the holding member 24 with a lever is a hook-like member, and when the crimping terminal is mounted, the holding part 24a that comes into contact with the crimping terminal, the notch part 24b with which one end of the spring 26 provided on the holding part 24a comes into contact, A lever portion 24c for opening the holding portion 24a with a finger and a through hole 24d for supporting the holding member with lever 24 on a support shaft are provided. Further, one end of the spring 26 is fixed in the spring accommodating groove 17g, and the other end is brought into contact with the holding member 24 with a lever. Instead of providing the notch 24b in the holding part 24a, a through hole may be provided in the holding part 24a, and the end of the spring 26 may be fitted into the through hole. Further, the screw 28 may be a support shaft, and the tip of the support shaft may be fixed by welding to the adjustment lever member 25, or the end of the screw 28 may be fixed with a double nut.

  As shown in FIGS. 11A and 11B, the adjustment lever member 25 has an adjustment lever 25b protruding in an orthogonal direction at one end of the shaft body 25a, and a semi-cylindrical engagement at the other end of the shaft body 25a. A mating projection 25c is provided, and a screw hole 25e into which the screw 28 is screwed is provided in the bottom semicircular portion 25d of the engagement projection 25c. The axial center of the screw 28 is located away from the axial center of the shaft body 25a. Further, the engagement protrusion 25c of the adjustment lever member 25 engages with the driven shaft member 27, which is a substantially cylindrical rotating member shown in FIGS. 10 (a) and 10 (b). The driven shaft member 27 is provided so as to rotate. The driven shaft member 27 is provided with a projecting semi-cylindrical engagement receiving portion 27b and a semicircular cutout bottom portion 27c for receiving the engaging protrusion 25c on one end side of the rotating body 27a. A through-hole 27d is provided in the axial direction, and a cylindrical portion 27e protruding so as to surround the through-hole 27d opening at the other end of the driven shaft member 27 is provided. A holding member 24 with a lever is provided rotatably in the through hole 24d. The shaft body 25a of the adjustment lever member 25 and the rotating body 27a of the driven shaft member 27 are inserted into the bearing through hole 17b of the crimp terminal block 17, and the engagement protrusion 25c and the engagement receiving portion 27b are engaged. By rotating the adjustment lever member 25, the engagement receiving portion 27b rotates and the axis center of the holding member 24 with the lever moves.

  Further, the adjustment lever member 25 has two types of sizes in which the crimp terminal 7 with a cutter shown in FIG. 18 has at least different widths corresponding to the diameter of the wire of the covered wire, and the crimp terminals 7 having different sizes are the crimp terminals. It is provided so that it can be mounted on the mounting surface 17a of the table 17, and by operating the adjusting lever member 25, the axis center of the screw 28 of the holding member 24 with the lever moves away from or approaches the convex portion 17c. It can rotate in an arc shape to accommodate different sizes.

Describing in detail with reference to FIG. 12, the screw hole portion 25 e and the through hole 27 d have the same axis center, and this axis center line C ₂ is the axis center line that is the rotation center of the axis body 25 a of the adjustment lever member 25. in a position different from the C _1. The shaft body 25a by operating the adjustment lever 25b is rotated around the axis C _1, the shaft center C ₂ is rotated along an arcuate path about the axial center C _1. That is, by operating the adjustment lever 25b, moves shaft axis C ₂ of the lever with the holding member 24 is away from the convex portion 17c, also, by operating the adjustment lever 25b in the opposite direction, of the lever with the holding member 24 shaft axis C ₂ is moved to approach the ridge 17c. Therefore, by operating the adjusting lever member 25, the distance between the protruding portion 17c and the holding portion 24a of the holding member 24 with the lever can be adjusted, and the protruding portion 17c and the holding with the lever can be maintained even if the size of the crimp terminal is different. It can be held between the holding portion 24 a of the member 24 and the mounting surface of the crimp terminal block 17.

  A sliding spring 29 is attached to the through hole 17 f provided in the crimp terminal block 17 with a screw 30 and is disposed in the crimp terminal holding member 11. In the sliding spring 29, a bent lever 29b is formed at one end of the sliding spring 29 extending from the coiled portion 29a, and a locking portion 29c is formed at the other end (see FIGS. 1 and 12). ). The lever 29b is for pushing the crimp terminal block 17 forward from the distal end portion of the crimp terminal holding member 11 or pulling it backward, and pushes the crimp terminal block 17 forward to the crimp terminal block 17. It becomes easy to attach the crimp terminal. In addition, as shown in FIG. 18, the crimp terminal with a cutter has two box-shaped connection parts. With the crimp terminal block 17 pushed forward, one connection part of the crimp terminal is connected to an optimum work piece. After closing the connection portion with a lid, pull the lever 29b rearward to draw the crimp terminal block 17 into the crimp terminal holding member 11, and the other connection portion of the crimp terminal is optimally set as the work position. Close with a lid.

  On the other hand, the sliding spring 29 engages with the two protrusions 11 f provided on the inner wall portion of the crimp terminal holding member 11 at the engaging portion 29 c, thereby restricting the slidable range of the crimp terminal block 17. . Further, a protrusion 11e is formed on the inner wall portion of the crimp terminal holding member 11 opposite to the protrusion 11f, and the protrusion 11e functions as a temporary stopper for the sliding spring 29. When the lever 29b is pulled backward strongly, the end of the sliding spring 29 gets over the protruding portion 11e, and the other locking portion 29c of the sliding spring 29 is locked by the rear projection 11f. A resin lever may be attached to the lever 29b.

Next, the connection operation of this embodiment will be described with reference to FIGS. 13 (a) and 13 (b) and FIGS. 14 (a) and 14 (b). First, the cutter with crimping terminal 7 using those illustrated in FIG. 18, a box-shaped portion 7a and the primary-side connecting portions ₇₁ and the secondary-side connection portion 7 ₂ is provided for this crimp terminal 7, the box A lid-like portion 7b that is provided via the ridge portion 7a and the bent portion 7c, presses the covered wire to close the opening of the box-like portion 7, and a cutting portion (cutter) 10 that cuts an unnecessary covered wire. And holding the crimping tool of the present embodiment with one hand, operating the lever 29b, setting the crimping terminal block 17 to the optimum work position, operating the holding member 24 with lever to open and crimping mounting the covered wire on the secondary side connection portion 7 _second terminal 7 is mounted on the mounting surface of the crimp terminal block 17 the bent portion 7c side of the crimp terminal 7 as the rear end side. At this time, the cutting portion (cutter) 10 of the crimping terminal 7 is positioned in the escape groove 17e of the crimping terminal base 17, and the cutting portion (cutter) 10 is pressed by the crimping jig at this mounting position. The line is never cut. Further, when the lateral width of the crimp terminal 7 is wide, the adjustment lever member 25 is operated to widen the distance between the protruding portion 17c and the holding portion 24a of the holding member 24 with lever, and the crimp terminal 7 is placed and held. On the other hand, when the lateral width of the crimp terminal 7 is narrow, the adjustment lever member 25 is operated in the opposite direction to narrow the interval between the protruding portion 17c and the holding portion 24a of the holding member 24 with lever. Incidentally, the primary-side connecting portions ₇₁ and the secondary-side connection section 7 ₂ of the crimp terminal 7 is not intended to divided by the input side of the signal line or the like and the output side may be used either.

Then, after placing the crimp terminal 7 on the crimp terminal base 17, by grasping the crimp terminal holding member 11 and the crimp lever member 14, the crimp lever member 14 uses the driven crimp member 13 and the support shaft 22 serves as a fulcrum. By this lever principle, the pressing portion 18 at the tip of the pressure-bonding lever member 14 presses the lid-like portion 7b, and the lid-like portion 7b is the secondary side of the box-like portion 7 as shown in FIG. the opening of the connection section 7 ₂ with closing a lid-shaped portion 7b, the internal connection is performed covered wire is pressed.

Subsequently, insert the covered wire to primary connecting portion ₇₁ of the crimp terminal 7, by pulling the lever 29b to the front side, crimp terminal block 17 is pulled into the crimping terminal holding member 11, and the optimal work position Crimping By grasping the terminal holding member 11 and the pressure-bonding lever member 14, the lid-like portion 7b in the opened state is pressed, and the connection of the covered wire is completed. At this time, the cutter 10 is positioned in the escape groove 17e and does not cut the covered wire. After routing completion of the coating line to the primary side connection unit _71, if necessary, placed on the side of the mounting surface 17a of protrusive convex portion 17c is not formed of the lever with the holding member 24, crimp terminal holding member By grasping 11 and the crimping lever member 14, the cutter 10 is pressed and the covered wire is cut.

  Next, another embodiment of the present invention will be described with reference to FIGS. 15 and 16. In this embodiment, the shape of the crimp terminal block and the sliding mechanism of the crimp terminal block are different from the above embodiment, and the crimp terminal block 30 includes a crimp terminal mounting portion 30a and a rear end portion 30b extending rearward. The crimp terminal block 30 is provided so as to be slidable in the front-rear direction while protruding from the tip of the crimp terminal holding member 31. The rear end portion 30b of the crimp terminal block 30 is provided with a long through hole 30c, and a locking member 34 for fixing the operation lever 32 and the spring 33 is provided behind the through hole 30c. The locking member 34 is an L-shaped metal fitting provided with through holes 34c and 34d. Similar to the crimp terminal block 17 of the above embodiment, the crimp terminal mounting portion 30a is provided with a holding portion 24 with a lever, an adjustment lever member 25, a spring 26 and the like. The operations of the holding portion with lever 24 and the adjustment lever member 25 are as follows. It is the same as that of the said embodiment.

  Further, the crimp terminal holding member 31 is provided with a guide hole 11 c and a support shaft 20 as in the above embodiment, and a guide hole 31 a is also provided at the rear end portion of the crimp terminal holding member 31. The support shaft 20 is inserted into a through hole 30c provided in the rear end portion 30b of the crimp terminal block 30, and the through hole 30c provided in the rear end portion 30b has a long hole shape, and the crimp terminal block 30 slides in the front-rear direction. Is possible. A through hole 30d and a screw hole 30e are provided behind the rear end portion 30b of the crimp terminal block 30, the screw 34a penetrates from the through hole 30d to the bottom, and further passes through the guide hole 31a of the crimp terminal holding member 31. It penetrates and is screwed into the screw hole 32a of the operation lever 32, the operation lever 32 is fixed, and the screw hole 30e provided in the rear end 30b is engaged with both ends of the ring spring 33, and the screw 34b is screwed. The ring spring 33 is fixed by the locking member 34, supports the rear end 30b of the crimp terminal block 30, and the crimp terminal block 30 is slidably provided in the crimp terminal holding member 31.

  As shown in FIGS. 15 (b) and 16, the ring spring 33 is provided with a ring portion 33a at the center thereof, hook portions 33c at both ends thereof, and engaging the hook portion 33c with the screw 34b. The ring spring 33 is supported by the locking member 34, the ring spring 33 is provided on the side wall of the rear end portion 30 b, protrudes downward from the bottom of the crimp terminal block 30, and the inner side of the crimp terminal holding member 31 is energized by the elasticity of the ring spring 33. A sliding resistance is given to the crimp terminal block 30 by pressing the bottom surface. Further, the inner bottom surface of the crimp terminal holding member 31 is provided with recesses 31b and 31c, and the front end portion of the ring portion 33a is fitted into the recesses 31b and 31c so that the crimp terminal block 30 can slide in the front-rear direction. The range is regulated. The concave portions 31b and 31c are not limited to this form, and may be convex portions.

  In this embodiment, the operation lever 32 is pushed forward with a finger to allow the crimp terminal to be easily mounted, and the crimp terminal block 30 projects forward to a position regulated by the through hole 30c and the guide hole 31a. The crimp terminal is mounted on the crimp terminal mounting portion 30a at the position. Subsequently, the operation lever 32 is pulled back, the crimp terminal block 30 moves rearward, and moves until the ring portion 33a is fitted in the recess 31b. The crimp terminal block 30 is at the position shown in FIG. It is possible to set the best work position for closing the lid. Further, when the operation lever 32 is pulled back with a finger, the ring portion 33a is fitted into the recess 31c, and the crimp terminal block 30 is pulled back to the position shown in FIG. The position of the crimp terminal mounting portion 30a can be set to the best work position for closing the other opening with the lid of the crimp terminal. This work position setting can be applied even in the above embodiment.

  Further, the adjustment lever member 25 is provided with a locking projection 25e on its shaft portion, and when the adjustment lever member 25 is operated, the locking projection 25e abuts on any of the opposing wall surfaces of the guide hole 11c. Thus, an angle at which the adjustment lever member 25 can be rotated is set. Thereby, the width | variety of the holding part 24 with a lever and the protruding item | line part 37c (corresponding to the protruding item | line part 17c) can be switched in two steps, without the adjustment lever member 25 rotating unnecessary. This locking projection 25e can also be applied to the above embodiment.

  The sliding mechanism of the crimping terminal block 30 in the front-rear direction uses a sliding spring 29 as the main part in the embodiment described above, whereas a ring spring 33 is used in the embodiment shown in FIG. Further, as shown in FIG. 15 (c), the operation lever 32 is an operation protrusion that extends from the operation base portion 32 b having the screw hole 32 a located at the bottom of the crimp terminal holding member 31 to the side wall of the crimp terminal holding member 31. It may be a substantially L-shaped member provided with the portion 32c, and may further be provided so that the operation projection 32c protrudes to the side surfaces of both side walls of the crimp terminal holding member 31. Moreover, you may provide so that it may protrude from the side wall part of the crimp terminal holding member 31, and should just be a structure which can be easily operated with a thumb.

  As described above, the crimping jig of the present invention grips the crimping terminal holding member and the crimping lever member with one hand with the crimping terminal block facing forward, and crimps the crimping terminal with a cutter with the covered wire sandwiched between the crimping terminal block. Place the crimping terminal on the clearance position on the terminal block, hold the crimping terminal with the crimping terminal holding member and the crimping lever member, grasp the crimping terminal holding member and the crimping lever member with one hand, and the crimping lever member is driven The crimping member is pressed by applying the lever principle, and the coated wire is connected to the crimping terminal with a cutter. When cutting the connected coated wire, change the mounting position of the crimp terminal block to the mounting position where there is no relief groove, place the crimp terminal, and grasp the crimp terminal holding member and the crimp lever member to cut unnecessary coated wires. be able to. Further, when connecting crimp terminals having different sizes, the mounting space can be switched in two stages by operating the adjustment lever member. Further, the crimp terminal block is provided so as to protrude from the tip of the crimp jig, and the wire terminal work can be performed by inserting the crimp terminal block into the complicated wiring.

  As an application example of the present invention, it can be used as a crimping tool for connecting a covered electric wire to a crimp terminal with a cutter.

It is a side view which shows the crimping tool of one Embodiment of this invention, (a) shows the state which open | released the crimping tool, (b) is a side view which shows the closed state. The crimping lever member of this embodiment is shown, (a) is the side view, (b) is the right side view. The driven crimping member of this embodiment is shown, (a) is the side view, (b) is the right side view. The crimp terminal holding member of this embodiment is shown, (a) is the side view, (b) is the right side view. The link member and connection lever member of this embodiment are shown, (a) is the side view, (b) is the right side view. It is an assembly perspective view of the crimp terminal holding part of this embodiment. (A) is the side view of the holding | maintenance part main body of a crimp terminal holding | maintenance part, (b) is the top view. It is a top view of the holding member with a lever of this embodiment. It is a side view of the spring for energizing the holding member with a lever of this embodiment. (A) is a top view of the connecting shaft member of this embodiment, (b) is the side view. It is an adjustment lever member of this embodiment, (a) is a side view, (b) is a top view. It is a disassembled perspective view of the crimp terminal holding | maintenance part of this embodiment. (A), (b) is a side view which shows the connection work process of the crimp terminal with a cutter. (A), (b) is a side view which shows the connection work process of the crimp terminal with a cutter. (A) is a principal part perspective view which shows other embodiment of this invention, (b) is the principal part side view, (c) is another Example of an operation lever. It is a principal part disassembled perspective view of other embodiment of this invention. (A) is a side view which shows the usage example which crimps and connects a to-be-covered electric wire to a terminal using the conventional pliers (crimping tool), (b) is a perspective view which shows a curl terminal. (A) is a perspective view of a crimp terminal with a cutter, and (b) is a perspective view of a crimp terminal with a cutter in a state where a lid is closed. It is a perspective view of the crimp terminal with a cutter which connected.

Explanation of symbols

7 Crimping terminal 7a Box-shaped part 7b Lid-like part 7c Bending part 11 Crimping terminal holding member 11a Holding member main body 11b Bearing member 11c Guide hole 11d, 11g Through-hole 11e Projection part 11f Protrusion 12 Support member 13 Driven crimping member 14 Crimping Lever member 15 Link member 16 Connecting lever member 17 Crimp terminal block 17a Mounting surface 17b Bearing through-hole 17c Projected line portion 17d Notch portion 17e Relief groove 17f Through-hole 17g Spring groove 17h Plate-like protrusion 18 Pressing portion 19-22 Support shaft 23 Spring 24 Holding portion with lever 24a Holding portion 24b Notch portion 24c Lever portion 24d Through hole 25 Adjustment lever member 25a Shaft body 25b Adjustment lever 25c Engagement protrusion 25d Bottom semicircular portion 25e Screw hole portion 26 Spring 27 Drive shaft member 27a Rotating body 27b Engagement receiving part 27c Engaging protrusion 27d Through hole 27e Cylindrical portion 28 Screw 29 Sliding spring 29a Coiled portion 29b Lever 29c Locking portion 30 Crimp terminal block 30a Crimp terminal placement portion 30b Rear end portion 30c Through hole 31 Crimp terminal holding member 31a Guide hole 32 Operation lever 33 Ring spring 34 Locking member W1 Primary side covered wire W2 Secondary side covered wire

Claims (8)

  A crimp terminal holding member slidably provided at the tip end of the crimp terminal block, a driven crimp member provided at the tip end with a pressing portion for pressing the crimp terminal with a cutter placed on the crimp terminal block; A crimp lever member that applies a pressing force to the crimp terminal placed on the crimp terminal block, and pivotally supports a rear end portion of the crimp terminal holding member, the driven crimp member, and the crimp lever member; One end of a link member is pivotally supported on the crimp terminal holding member on the rear end side of the crimp terminal block, one end of a connecting lever member is pivotally supported on the other end of the link member, and the connected lever member is connected to the driven crimping member. The pressure-bonding lever member is pivotally supported by a member, the other end of the connecting lever member is brought into contact with the inner wall surface of the pressure-bonding lever member, and a spring is provided on a support shaft that supports the link member and the connecting lever member. The crimp terminal holding Crimping tool, characterized in that to grasp and said pressure lever member and the member to connect the coated wire to the crimp terminal.   The crimp terminal block is sandwiched between the mounting surface on which the crimp terminal is placed, a holding body having a protruding portion that supports one side wall of the crimp terminal, and the protruding terminal on the mounting surface. The crimping tool according to claim 1, further comprising: a holding member with a lever to be adjusted, and an adjustment lever member capable of adjusting a position of the holding member with the lever according to a size of the crimping terminal.   The crimp terminal mounting surface of the crimp terminal block includes a crimp mounting part for closing the cover of the crimp terminal and connecting the covered wire, and a mounting part for cutting the wiring connected by the cutter provided on the crimp terminal. The crimping tool according to claim 1, wherein the crimping tool is provided.   A clamping spring with a lever capable of projecting the crimp terminal block from the tip end portion of the crimp terminal holding member or pulling it into the crimp terminal holding member is provided in the crimp terminal holding portion. The crimping tool according to claim 1, 2 or 3.   The crimping tool according to claim 4, wherein a regulating member that regulates a movable distance in the crimp terminal holding member of the holding spring with lever is provided on an inner wall surface of the crimp terminal holding member.   The front crimping terminal block has a mounting portion on which the crimping terminal is placed and a rear end portion extending rearward from the mounting portion, and a support shaft that pivotally supports the crimping terminal holding member and the link member A long hole-like through-hole through which is inserted is provided at the rear end portion, and a spring is provided at the rear end portion that applies sliding resistance to the crimp terminal block and is slidable in the front-rear direction. The crimping tool according to claim 1, 2, or 3.   The crimping tool according to claim 6, wherein a concave portion or a convex portion that sets the slidable range of the crimp terminal block by contacting the spring is provided on an inner wall surface of the crimp terminal holding member.   The holding member with lever and the adjustment lever member have first and second rotating shafts that engage with each other, and the holding member with lever is located at a position away from the axial centers of the first and second rotating shafts. The crimping tool according to any one of claims 2 to 7, wherein an axis center of the rotating shaft is provided.

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