JPH0341436Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention mainly relates to a pressure welding tool for a modular plug attached to a wiring terminal portion of a telephone such as a home telephone or a business telephone.

[Conventional technology]

In general, modular plugs are divided into two types: those with a narrow housing width, commonly called the 4 series, and those with a wide housing, called the 6 series. In this case, the 4 series type is attached to the wiring terminal part of the telephone and handset, so it is not often used. However, the so-called 6 series comes in three types depending on the number of blades (number of core wires): 2-pole, 4-pole, and 6-pole. Since they are attached to telephones such as home telephones and business telephones, they are used relatively infrequently, but those with 4 and 6 poles are most commonly used because they are attached to the wiring terminals of telephones such as home telephones and business telephones. In particular, plugs with six pins are expected to be used as the mainstream type of plug in the near future as telephones become more and more multi-functional.

However, conventional pressure welding tools for modular plugs have a 4-series plug pressure welding part, which is not often used, in the front position of the outer skin cutter part that peels off the outer skin of the cord with a limited length. , a narrow sheath punch for 4 poles was attached, and a 6 series plug pressure welding part, which was commonly used for 4 poles and 6 poles, was lined up at the tip of the same tool.

[Problems to be Solved by the Invention] Due to the above, conventional pressure welding tools for modular plugs have the following problems.

(1) Since the 4-series plug pressure welding part, which is not often used, is attached, this pressure welding part is used infrequently, so there is a drawback that it is less convenient for the user and reduces the product value.

(2) Even if a plug welding part for the 6 series, which is the most frequently used plug, is installed, the sheath punch that presses the cord sheath is narrow for a 4-pole plug, so this tool cannot be used to crimp a 6-pole plug. if you did this,
Due to the insufficient punch width, only the central portion of the cord inserted into the plug is pressed against the plug, resulting in non-pressure contact areas on the left and right outer skin portions, resulting in an incomplete connection.

(3) In addition, since the cord cutter part that peels off the outer skin of the cord does not allow the cord to pass through to the back side of the cutter part, it is always limited to peeling the outer skin of a certain length, but it is not possible to cut the outer skin of a variety of lengths. There were some drawbacks that I couldn't overcome.

(4) Furthermore, when the above-mentioned outer skin cutter part is used to peel off the outer skin of the cord, if the cord tool is not held perpendicular to the longitudinal direction, part of the cord core will be cut or damaged. The core wires were exposed, which caused problems such as short circuits between adjacent core wires.

[Means for solving problems]

This invention solves the above-mentioned problems of the conventional technology, and the plug pressure welding part is mainly the 6 series, which is the most frequently used, and the blade punch and sheath punch are 2 types, 4-pole type and 6-pole type. It is possible to use the different types by switching, and the outer sheath cutter part has a sliding window and a shutter that penetrate to the back side so that the cord sheath can be peeled off either long or short, and when it is peeled off, it affects the direction in which the cord is held. To provide a pressure welding tool for a modular plug that can safely and reliably peel off only the outer skin without damaging a part of the cord core.
The feature of this invention is that a slider with a modular plug holder at its tip is housed in an internal recess that communicates with the receiving window of the mating case, and can be moved back and forth by operating a moving grip. The guide groove provided in the mating case houses a punch assembly that can be freely switched from side to side by assembling two types of blade punches and sheath punches, and can be used for common pressure welding operations for multiple types of modular plugs. A sliding groove is provided in the back and forth direction inside the insertion window of the mating case adjacent to the plug press-contact area, where the outer cover cutter is formed by the fixed blade and the movable blade. A shutter with a through hole is movably housed in the housing to enable stripping of the cord sheath in long and short lengths, and a roller is placed in front of the interior of the position that will become the sheath cutter section to hold the cord sheath from the front and back. The cord cutter part is configured to protect the cord core when the cord sheath is peeled off.

[Effect]

When connecting a modular flat cord to a modular plug using the pressure welding tool with the above configuration, first close the shutter of the outer skin cutter, insert the end of the cord through the insertion window on the front side, and then , when the moving grip is compressed,
The fixed blade and movable blade of this cutter section allow only the outer skin of the cord to be peeled off with high precision. At this time, rollers are placed in front of each of the fixed blade and the movable blade, so by holding the rollers, the cord can be cut to the core even if the cord is not held perpendicular to the longitudinal direction of the tool. It is possible to reliably prevent damage or damage. If the shutter of this cutter part is left open, the cord will pass through the through hole to the outside of the back surface, making it possible to peel off the outer skin to any desired length. Next, when connecting a modular plug to the cord from which the outer skin of the terminal part has been peeled off as described above, depending on whether the plug to be connected is a 4-pole type or a 6-pole type, it must be stored in the guide groove in advance. Move the punch assembly from side to side and place the punch for the plug inside one side of the receiving window. For example, when a 4-pole modular plug having a housing of the same size as the 6 series is housed in the tip holder of the slider movably housed inside the other side of the receiving window, and the cord is press-fitted, When the core of the cord from which the outer skin of the terminal part has been peeled off is inserted through the insertion hole of the housing and the slider is moved forward, the quadrupolar plate terminal of the housing located inside the holder of this slider is pressed by the blade punch and the cord is pressed all at once. Since the core is reliably pierced from the core to the core wire at each position, and at the same time, the outer sheath of the cord is also pressed by the sheath punch, it is possible to perform a pressure welding operation in a perfect connection mode. In addition, when connecting a 6-pole modular plug to the cord, the punch linkage in the guide groove can be switched by sliding from the previous 4-pole blade punch and sheath punch to the 6-pole blade punch and sheath punch. By changing the positions, all the electrode plate terminals are reliably pierced by the core wires at each position in the same manner as described above, and the pressure welding operation for complete connection can be performed in the same way.

〔Example〕

Hereinafter, embodiments of this invention will be described based on the accompanying drawings.

As shown in FIGS. 1 to 4, the pressure welding tool according to this invention has a
A slider 3 is housed inside so that it can slide back and forth.
and a punch assembly 18 housed in the front guide groove 17 of the slider 3 so as to be able to switch left and right.
The plug press-contact part A has the main parts as the main parts, and the fixed blade 29 and the movable blade 31 located in the insertion window 26 of the mating case 1 adjacent to the plug press-contact part A, and the slide window 27 at the deep inside thereof. a shutter 33 for opening and closing, and a roller 36 disposed on the front side of the cutter main body formed by the double blades 29, 31,
It consists of an outer skin cutter part B with 37 as each main part.

First, the plug pressure contact portion A is constructed as follows. In other words, as clearly shown in Figs. 1 to 4, this plug pressure contact part A has an open front surface side, a circumference of which protrudes uniformly to one side, and a closed outer periphery. The mating case 1, which is the base of the pressure welding tool, is formed by a receiving case 1a that is scissor-shaped and has a vertical surface parallel to the longitudinal direction on the back side, and a lid case 1b of the same shape that faces the receiving case 1a. By means of a screw 40 inserted from one surface side and a nut 43 for tightening the screw 40, it is assembled into an integral body whose peripheral surface is closed and the inside becomes an air zone. By this assembly, a recess 2 in the front-rear direction is formed inside the mating case 1 at the approximate center on the front side, and this recess 2 is formed inside the front side.
A guide groove 17 is provided perpendicular to the . Further, a receiving window 14 communicating with the recess 2 on the surface side is provided approximately at the center of the front side of the lid case 1b. Further, a through-hole 15 communicating with the recess 2 on the back side is provided in the center of the receiving case 1a, facing the above-mentioned portion. The rear sides of the assembled receiving case 1a and lid case 1b are paired with a movable grip 9 which is connected to the outside of the central lower part of the receiving case 1a via an insert link 11 so as to be able to swing up and down. It is formed into a fixed grip. A grip presser 44 is swingably attached to the end of the fixed grip to keep the movable grip 9 closed when the tool is not in use. (1st
(See figure) The slider 3, which is one of the main parts of the above-mentioned plug pressure contact part A, has a substantially rectangular cube with a U-shaped tip, and a 6 series 4-pole modular plug (not shown) and a 6-pole A holder 4 is provided that can accommodate the modular plug in common. The holder 4 communicates with a receiving window 14 on the front side and a through window 15 on the back side when the slider 3 is not slid forward.
In addition, this slider 3 has an elongated hole 5 in the front-rear direction extending through the central portion, and by inserting a guide shaft 6 into the elongated hole 5 from the side, it is possible to slide forward and backward with high precision. It is located. In this case, a link 10 that swings by support of shafts 12 and 13 is installed between the rear lower body of the slider 3 and the above-mentioned moving grip 9, and this link 10 and the above-mentioned insert link 11 move the mating case 1 When the movable grip 9 is pressed against the fixed grip while holding the fixed grip on the rear side with one hand, the slider 3 uses the guide shaft 6 as a support and moves forward. ing. After this movement, the slider 3 has one end suspended above its rear part, and the other end attached to the pin 7 behind it.
It is configured to return to the original position shown in FIG. 2 by the elastic traction force of the tension spring 8 which is engaged with.

At the position of the guide groove 17 on the front side of the slider 3 described above, a punch chain 18 shown below is housed so as to be able to switch freely from side to side.
This punch chain 18 has a blade punch 19 on one side for press-contacting and piercing the four-pole plate terminal of a 6 series modular plug (not shown) to the core wire at each position via the same number of cores on the cord side. , and the sheath punch 20 that holds the outer skin of the cord in a pressure-welded manner are fixed in an integrated state, and on the other side, the same number of six-pole plate terminals in the 6 series modular plug with a housing of the same external shape are attached to the cord side. A blade punch 21 for pressing and piercing the core wire at each position through the core, and a wide sheath punch 22 for holding the outer skin of the cord in a press-welded state are fixed in an integrated state. A ball stopper is provided on the bottom side of the punch assembly 18 in order to fix both blade punches 19 and 21 in a forward position concentric with the holder 4 of the slider 3 during use. A hole is provided. The ball 24 with a presser spring 25 is elastically supported and press-contacted to each of the ball fixing holes, so that the ball 24 can be stopped at each fixed position. (See Figure 2) This punch chain 18 is
A switching guide 23 is provided that protrudes from a part of this series toward the surface side into the switching window 16 formed on the surface side of the lid case 1b so as to coincide with the guide groove 17 described above.
The blade punches 19 and 21 and the sheath punches 20 and 22 can be accurately switched to their fixed positions by inserting them loosely and guiding the switching guide 23 in the left-right direction.

At a position adjacent to the plug pressure contact portion A described above, an outer skin cutter portion B shown below is arranged. This outer skin cutter part B is the receiving window 1 of the mating case 1.
The sliding window 27 is opened and closed at the back of the interior, mainly using the fixed blade 29 on the lid case 1b side located in the insertion window 26 provided on the surface adjacent to 4 and the movable blade 31 on the slider 3 side described above. Shutter 3
3, and rollers 36, 37 disposed on the front side of the main body formed by the double blades 29, 31 as the main parts.

First, one of the fixed blades 29, which is the main body of the outer skin cutter part B, is attached by tightening a screw 41 to the vertical blade stand 28 provided at the back of the front inside the insertion window 26. . Further, a movable blade 31 is attached to a vertical blade stand 30 integrally connected to the upper half of the slider 3 by tightening a screw 42 to the blade stand 30.

A slide groove 32 is formed in the shape of a recess in a thin plate at an inner position of the receiving case 1a at the inner depth of the double blades 29, 31 as described above, which communicates with the sliding window 27 provided in the receiving case 1a at this position. At the position of this slide groove 32, a knob 34 that fits into the slide window 27 is provided on the side surface of the tip of the thin plate surface.
The shutter 33 is provided with a horizontally elongated through hole 35 on the rear plane of the shutter 4, which when aligned with one end of the sliding window 27, can form an oval hole of the same shape through which a modular flat cord can pass. However, knob 34
It is housed in such a way that it can be slid back and forth by guidance from the outside on the back side. When this shutter 33 is moved rearward, the sliding window 2
7 and the through hole 35 disappear, it is possible to peel off the end portion of the cord outer shell (not shown) inserted into the outer shell cutter part B to a specified length, and also to move the shutter 33 forward. When the cord is moved to , a composite cord hole formed by the slide window 27 and the through hole 35 appears, so that the cord sheath can be peeled off to an arbitrary length by passing through this composite hole.

Furthermore, vertical pins 38 and 39 are erected at both ends of the insertion window 26 in front of the position that will become the skin cutter part B, that is, in front of the fixed blade 29 and the movable blade 31. A fixed roller 36 and a movable roller 37 are arranged on the pins 38 and 39 at a distance that allows the cord to be held when the cord is inserted. And when peeling off the cord outer skin,
The cord is held perpendicularly to the double-edged blades 29 and 31, thereby making it possible to protect the cord core. has been done.

When connecting a modular flat cord (not shown) to a modular plug (also not shown) using the pressure welding tool configured as described above, it is performed as follows. That is, first, the shutter 33 of the outer skin cutter part B is moved backward relative to the knob 34 to close the cord hole formed by combining the slide window 27 and the through hole 35, and then the cord is inserted through the insertion window 26 on the front side. After inserting the terminal part,
When the movable grip 9 is brought together and compressed toward the fixed grip side of the case 1, the slider 3 moves forward by a specified amount by the action of the link 10, so that the fixed blade 29 and the movable blade 31 of the cutter part B cut only the outer skin of the cord with precision. Can be peeled off easily. At this time, since rollers 36 and 37 are arranged in front of the fixed blade 29 and the movable blade 31, the cord is temporarily held perpendicular to the longitudinal direction of the tool by holding the rollers 36 and 37. Even if you don't have one, you can reliably prevent the core of this cord from being cut or damaged. Note that, although the cord coating after peeling remains inside the cutter portion B, it can be easily removed to the outside by repeating the opening/closing operation of the shutter 33. Also, move the shutter 33 of the cutter part B forward to remove the slide window 27.
If a synthetic cord hole is made by forming the hole and the through hole 35, the cord penetrates outward from the back side through the synthetic hole, and the outer skin can be peeled off to an arbitrary length.

Next, when connecting a modular plug to the cord from which the outer skin of the terminal part has been peeled off as described above, depending on whether the plug (not shown) to be connected is a 4-pole type or a 6-pole type, If the plug is a 4-pole type, the punch assembly 18 housed in the switch guide 23 exposed from the switching window 16 is guided to the left and right, and if the plug is a 4-pole type, a small width that matches the 4-pole plate terminal is provided. A blade punch 19 and a sheath punch 20 integrated with the punch are fixedly placed inside one side of the receiving window 14. A 4-pole modular plug having a common size housing for the 6 series is housed in a holder 4 located at the tip of the slider 3 which is movably housed inside the receiving window 14 on the other side. After inserting the four-pole core of the cord from which the outer skin of the terminal part has been peeled off as described above, the moving grip 9 is compressed again to move the slider 3 forward.
The quadrupolar plate terminals of the housing (not shown) fitted into the holder 4 of the slider 3 are reliably pierced from the core of the cord to the core wires at each position at the same time by the blade punch 19, and at the same time, the outer sheath of the cord is Since the sheath punch 20 presses the parts, it is possible to perform the press-welding operation in a completely connected manner.

Although not shown, when connecting a 6-pole modular plug to the cord, use the guide groove 1 described above.
By sliding the punch assembly 18 in 7, the wide blade punch 2 for 6 poles can be changed from the previous 4-pole blade punch 19 and sheath punch 20.
1 and the sheath punch 22, all the six-electrode plate terminals are reliably pierced by the core wires at each position in the same manner as described above, and the pressure welding operation for complete connection can be easily performed.

In the tool of the above embodiment, for example, a blade punch and a sheath punch with the most frequently used number of poles are placed on the slider 3 side, and two plug holders of two different sizes are placed on the opposite side.
If this is made switchable by sliding in the same way as described above, a pressure welding tool for modular plugs of different sizes for the 4 series and 6 series can be realized.

[Effect of idea]

This idea stores a slider with a modular plug holder at its tip in an internal recess that communicates with the receiving window of the mating case so that it can be moved back and forth by operating a moving grip. The guide groove provided in the plug accommodates a punch assembly that can be freely switched from side to side by assembling two types of blade punches and sheath punches, making it possible to share pressure welding operations for multiple types of modular plugs. A sliding groove is provided in the back and forth direction inside the insertion window of the mating case adjacent to the pressure contact part and this plug pressure contact part, at the position where the fixed blade and the movable blade will become the outer skin cutter part, and a through hole is provided in this groove. The shutter is movably housed to enable long and short stripping of the cord sheath, and a roller is placed inside the front of the above-mentioned sheath cutter section to hold the cord sheath from the front and back. It is characterized by consisting of an outer skin cutter part that makes it possible to protect the cord core when it is peeled off. Therefore, the plug pressure welding part of this tool is mainly the 6 series, which is the most frequently used type, and the blade punch and sheath punch can be switched between two types, 4-pole and 6-pole, and the outer skin cutter The part is provided with a sliding window and a shutter that penetrate to the back side so that the cord outer cover can be peeled off in either a long or short length, and when peeling off, it is not affected by the holding direction of the cord and without damaging a part of the core. Since only the outer skin can be peeled off safely and reliably, the present invention has the advantage of being able to provide greater convenience to users by anticipating the increasing multifunctionality of telephones.

[Brief explanation of the drawing]

Fig. 1 is a side view of the surface side showing the pressure welding tool for a modular plug according to this invention, Fig. 2 is a longitudinal cross-sectional side view of the same tool partially disassembled and showing the main parts of the plug press-welding part, and Fig. 3 is a side view of the same tool. FIG. 4 is a cross-sectional plan view partially cut away to show the main part of the skin cutter part, and FIG. 4 is a side view of the back side of the same tool. 1... Matching case, 2... Recess, 3... Slider, 4... Holder, 9... Moving grip, 14
... Receiving window, 17 ... Guide groove, 18 ... Punch assembly, 19, 21 ... Blade punch, 20, 2
2... Sheath punch, 26... Insertion window, 29...
Fixed blade, 31...Movable blade, 32...Slide groove,
33...Shutter, 35...Through hole, 36, 37
...Roller, A...Plug pressure contact part, B...Sheath cutter part.

Claims (1)

[Scope of utility model registration request] A slider with a modular plug holder at its tip is housed in an internal recess that communicates with the receiving window of the mating case so that it can be moved back and forth by operating a moving grip, and a guide provided inside the mating case is where the slider reaches. A plug pressure welding section that houses a punch assembly that can be freely switched to the left and right by assembling two types of blade punches and sheath punches in the groove position, making it possible to share the pressure welding operation for multiple types of modular plugs; Inside the insertion window of the mating case adjacent to this plug press-contact part, a fixed blade and a movable blade are used to create a sliding groove in the back and forth direction deep inside the position that will become the outer skin cutter part, and a shutter with a through hole is moved into this groove. It can be stored freely and the cord sheath can be separated into long and short sections, and a roller that holds the cord sheath from the front and back is placed in front of the position where the sheath cutter part is to be formed.
A pressure welding tool for a modular plug characterized by comprising a sheath cutter portion that protects the cord core when the cord sheath is peeled off.