JPH07114969A - Method of inserting terminal provided with electric wire and electric wire guide arm - Google Patents

Abstract

PURPOSE:To surely insert a terminal provided with electric wire into the desired housing chamber of a connector housing. CONSTITUTION:A terminal 3 is inserted after a electric wire 2' is guided by a terminal holding hand 8 and guide arms 52, 53. The terminal is inserted between a pair of arms, is guided to a housing 7 by the tilted guide part 56 of the arm, the cross section of which is formed into triangular shape, and which has a spindle like front end part 54 and is inserted between the respective electric wires. The front end part has the shape of an arrowhead having no joint seam. The tilted guide part has a horizontal contact surface in relation to the terminal. One arm is notched and forms a guide protrusion part for inserting the terminal. The guide protrusion part has a sliding slope to be inserted between the respective electric wires. An offset part is provided in the vicinity of the guide protrusion part in the direction that the electric wire is guided, in order to guide the electric wires. The sizes of the tapered surfaces 51 for guiding the terminal of both arms are differentiated from one another to correct rotational displacement of the terminal. A bar preventing invasion of the electric wire is protruded on the arm. A tapered notch is provided on the inside of the bar so as not to catch the electric wire between the arms.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of inserting a terminal with an electric wire and a method for inserting the terminal with an electric wire into a desired terminal accommodating chamber by scraping off adjacent electric wires when automatically inserting the terminal with the electric wire into a connector housing. The present invention relates to a wire separating arm.

[0002]

2. Description of the Related Art FIG. 37 shows a conventional method of inserting a terminal with an electric wire described in JP-A-61-104578. In this method, first, one of the terminals 37, 38 crimped to both ends of the electric wire 36 is inserted into the connector housing 40 from the one end side of the housing 40 at the terminal end of the progressive line 39, and then the other terminal. 38 is rearranged by the transfer head 42 of the transfer table 41 to the sandwiching section 44 on the arrangement station 43. This rearrangement is carried out in order to insert the other terminal 38 into the required positions of the connector housing 45 in the next step in order. Then, the terminals are sequentially inserted into the connector housing 45 on the transferred station 43 from one end side of the housing 45 to complete a set of wire harnesses 46.

However, in the above-mentioned conventional method, there is a step of rearranging the terminals 47 with electric wires so that the terminals 38 can be surely inserted into the connector housing 45 without being disturbed by the electric wires 36 previously inserted. It was indispensable, and as a result, it was forced to increase tact and enlarge the line. Moreover, the space for rearrangement is naturally limited, and it has been difficult to manufacture a multi-circuit wire harness in terms of space.

[0004]

SUMMARY OF THE INVENTION The present invention provides a method for inserting a terminal with an electric wire, which can surely insert a terminal into a desired terminal accommodating chamber of a connector housing without rearranging the terminals with an electric wire, and an electric wire separating arm used for the method. Is provided.

[0005]

In order to achieve the above-mentioned object, the present invention provides a terminal with an electric wire for holding the terminal with an electric wire by a wire gripping hand and a terminal gripping hand and inserting the terminal into a terminal accommodating chamber of a connector housing. In the insertion method, the first method of inserting the terminal with the electric wire after moving the terminal gripping hand in the electric wire scraping direction with respect to the electric wire already inserted into the adjacent terminal accommodating chamber, and the terminal accommodating chamber An electric wire separating arm provided between the opening and the terminal gripping hand so as to be movable back and forth or the electric wire separating arm and the terminal gripping hand are moved in the scraping direction with respect to the electric wire already inserted into the adjacent terminal accommodating chamber. After the second method of inserting the terminal with electric wire, a pair of guide arms having an inclined guide portion for the terminal and a housing cutout portion for the inclined guide portion are closed. In this state, the wire is inserted between the adjacent electric wires that have already been inserted into the terminal accommodating chamber of the connector housing, the pair of guide arms is opened to separate the electric wires, and the rear end of the guide arm is inserted between the pair of guide arms. A third method is adopted in which the terminal is inserted from one side and the terminal is inserted into the terminal accommodating chamber along the inclined guide portion. In the third method, it is possible to insert the tips of the pair of closed guide arms between the electric wires along the partition wall of the terminal housing chamber of the connector housing, and open only one of the guide arms to scrape the electric wires.

Further, the guide arms are formed of a pair of guide arms having a triangular pyramid-shaped tip portion and having a wedge shape at the time of joining and having a triangular cross section, and one of the guide arms has an inclined guide portion projecting toward the terminal on the joining surface side. The other guide arm is basically an electric wire scraping arm (first structure) having a notch capable of accommodating the inclined guide portion, and the inclined guide portion having a substantially triangular guide surface is provided with a terminal of the terminal. A second structure in which a horizontal contact surface for the contact curl portion is formed and the curl portion can be horizontally moved within the range of the horizontal contact surface, and the cutout portion is provided in the wire lead-out direction from the front end portion of the other guide arm. A notch is formed to extend in the longitudinal direction of the other guide arm, and a guide protrusion extending to the front end portion is formed on the other guide arm facing the inclined guide portion, and the inside of the guide protrusion is formed. A third structure in which a terminal with an electric wire can be inserted along the guide projection, and a slidable contact slant surface for the electric wire is formed on the outer surface of the guide projection, and the guide projection has a wedge shape in the wire insertion direction. A fourth structure and an offset portion extending in the wire lead-out direction is provided near the guide protrusion of the other guide arm, and a cutout groove in the wire lead-out direction is provided in the offset portion, and the wire is scraped by the cutout groove. A fifth structure that is made possible, and a barbed tip is formed on the one guide arm, and the tip of the other guide arm is formed shorter than the barbed tip to form a base of the barbed tip. A sixth structure in which the barbed tip is housed in an end notch and the wire-shaped tip can be inserted between electric wires, and a tapered guide surface for guiding a terminal is provided on one inner side of the pair of guide arms toward a rear end. And the other guide arm A seventh structure in which chamfered dimensions are formed differently and the positional deviation in the rotational direction of the terminals can be corrected by sequentially slidingly contacting the terminals with each taper guide surface, and the vicinity of the tip portions of the pair of guide arms In the eighth, an electric wire intrusion prevention bar having a taper portion that expands outward from the guide arm is provided in the electric wire lead-out direction, and the electric wire intrusion prevention bar allows the electric wire to be expanded outward when the guide arm is inserted between the electric wires. A structure and a ninth structure in which a tapered notch is formed from the tip to the inner side of the pair of wire intrusion prevention bars, and the taper notch prevents the electric wire from being caught between the pair of guide arms. adopt.

[0007]

In the first and second methods described above, the electric wire separating arm and the terminal gripping hand separate the adjacent electric wires, which have already been inserted into the connector housing, into the right and left parts so that the terminals can be inserted without interfering with the electric wires. The wire scraping arm retracts when the terminal is inserted to allow the terminal gripping hand to advance.
Further, in the third method, the guide arm is inserted between the electric wires, and the electric wires are scraped by the opening movement of the guide arm, and the terminal is guided into the housing along the inclined guide portion.

Further, in the above-mentioned first structure, the triangular pyramidal tip portion of the guide arm is smoothly inserted between the electric wires without being caught. In the second structure, even if the terminal has a play in the horizontal direction, the curl portion only moves along the horizontal contact surface, and does not move in the height direction out of the inclined guide portion. In the third structure, the notch is provided so as to extend in the longitudinal direction of the guide arm, so that when the guide arm is opened, the guide arm approaches the connector housing as much as the front end of the guide arm does not come into contact with the electric wire. Since the guide protrusion is close to the opening of the terminal accommodating chamber, the terminal can be surely inserted. In the fourth structure, when the guide arm is inserted between the electric wires, the slidable contact inclined surface of the guide protrusion smoothly contacts the electric wire to prevent the interference with the electric wire.

In the fifth structure, the contact with the electric wire is moved further rearward than that in the third structure by the notch groove of the offset portion, and the electric wire is prevented from being bent excessively. In the sixth structure, there is no seam at the time of joining both arms to the tip of the guide arm, and the tip can be formed into a smooth rounded shape, which enables smoother insertion between the electric wires. 7th
In the above structure, the positional deviation of the terminals is corrected by sequentially slidingly contacting the terminals displaced in the rotational direction with the respective taper guide surfaces. In the eighth structure, the wire intrusion prevention bar prevents the wires from wrapping around inside the guide arm when the wires are separated. In the ninth structure, the tapered notch prevents the electric wire from being caught between the guide arms when the guide arm is raised.

[0010]

1 is an overall perspective view showing an embodiment of a method of inserting a terminal with an electric wire according to the present invention. In this method, the terminal 4 with electric wire, which is obtained by crimping the terminals 3 to both ends of the electric wire 2 by the terminal crimping machine 1, is clamped by the clamp rod 5 and sent to the terminal inserting machine 6, and the insertion head A is inserted into the connector housing 7.
The terminal 3 is inserted horizontally by means of the terminal gripping hand 8 and the wire scraping arm 9 provided on the insertion head A, and the wires 2'which have been inserted into the housing 7 are scraped. To do.

The insertion head A is provided with an electric wire gripping hand 10 at the rear side (front side) of the terminal gripping hand 8 and a pair of electric wire sweeping arms 9 at the front side.
Is swingable to the left and right (in the direction orthogonal to the terminals) by a driving means (not shown) to separate the electric wire 2 ', and in synchronization with the electric wire gripping hand 10 can be moved forward and backward to insert the terminal. Can be opened and closed in the left and right directions and moved up and down in the up and down directions by a driving means described later.

2 to 5 show the operation of the insertion head A. First, as shown in FIG. 2, the base portion of the electric wire 2 is grasped by the electric wire grasping hand 10 and, at the same time, the tip end portion of the terminal 3 is grasped by the terminal grasping hand 8. Then, the terminal with electric wire 4 is carried from the clamp rod 5 to the insertion chamber opening 11a of the connector housing 7.
The operation of both gripping hands 8 and 10 is described in JP-A-60-11909.
No. 0 is known. The terminal 3 is the opening 11 of the terminal accommodating chamber 11.
When approaching a, an electric wire scraping arm 9 which will be described later comes down from above and opens and closes in the immediate vicinity of the opening 11a to scrape the inserted electric wire 2'into the left and right.

Then, as shown in FIG. 3, the electric wire separating arm 9 is raised, and the gripping hands 8 and 10 advance the terminal 4 with electric wire to the vicinity of the accommodation chamber opening 11a. Here, the terminal gripping hand 8 swings to the left and right to assist the electric wire 2'by scraping.
The tip portion 8a of the terminal gripping hand 8 is horizontally projected and coupled to the inclined support rod 8b so that the tip end 3a of the terminal 3 can be slightly projected and gripped. The terminal gripping hand 8 is shown in FIG. 4 with the terminal tip 3a being inserted into the accommodation chamber opening 11a.
As shown in FIG. 5, the electric wire gripping hand 10 pushes the electric wire-equipped terminal 4 into the accommodation chamber 11.

FIG. 6 is a front view showing an embodiment of the wire scraping arm. The scraping arm 9'has a pair of lower links 1 having a blade-shaped scraping portion 12a at the tip thereof.
2, 12 and a pin 13 at one end to the base end of the lower link 12.
And a pair of substantially crank-shaped intermediate links 15, which are rotatably supported by a fixed shaft 14 at the center, and the other end of the intermediate link 15 is connected by a pin 16 to form a pin 17 at the top.
And a pair of upper links 18 connected in a mountain shape. The pair of lower links 12, 12 is a pin 1
The winding spring 19 provided at 3 opens the legs substantially in parallel.

Further, the scraping portion 12a is formed in a thin blade shape so that it can be easily split between the electric wires 2 ', and a projecting portion 12b is formed on the housing portion opening 11a side of the scraping portion 12a as shown in FIG. May be. The electric wire sweeping arm 9'is closed like a chain line by pressing the top portion of the upper link 18 by a cylinder 20 provided above as shown in FIG.
It is pulled and opens like the solid line.

7 to 12 show an example in which the above-mentioned method of inserting a terminal with an electric wire is applied to a connector housing 7'opened in a vertical direction. That is, in FIG. 7, reference numeral 9'denotes an electric wire separating arm substantially similar to the above, and the separating arm 9'approaches the desired accommodation chamber opening 11b from the front along the partition wall 21 of the accommodation chamber 11 ', and FIG. As described above, the electric wire 2'is scraped off by swinging right and left as shown by an arrow right next to the accommodation chamber opening 11b. Further, as shown in FIG. 9, the separating arm 9'moves rearward on the partition wall 21 and descends one step on the rear end of the housing 7 ', and then opens to the left and right as shown in FIG. 10 to further separate the electric wire 2'. .

In this state, the separating arm 9'is shown in FIG.
As shown in FIG. 5, the terminal gripping hand 22 and the wire gripping hand 23 that grip the terminal 4'with electric wire descend in the vicinity of the original lowered position of the arm 9 ', and the path divided by the arm 9'is indicated by an arrow. It advances in the direction of C and bends at a right angle next to the desired accommodation chamber opening 11b as shown by the arrow D, and additionally scrapes the electric wire 2'by the tip 22a of the terminal gripping hand 22, and on the accommodation chamber opening 11b as shown in FIG. The terminal gripping hand 22 is opened and the wire holding hand 23 pushes the terminal 4 with electric wire into the accommodation chamber 11 '. A tip portion 22a of the terminal gripping hand 22 is horizontally projected and coupled from an inclined support rod 22b, and can hold the terminal 3 vertically. The electric wire gripping hand 23 holds the electric wire 2 vertically.

13 to 15 show the structure and operation of both gripping hands 22 and 23 in detail. As shown in FIG. 13, the electric wire gripping hand 23 is composed of a pair of substantially compass-shaped supporting rods 23b, 23b axially connected by a pin 24 at the upper portion, and a spring 25 for urging the supporting rod 23b in an opening direction. , The outer tapered surface 2 formed at the upper end of each supporting rod 23b
The pair of rollers 26 is pressed against the cylinder 3c by the cylinder 27 to close the support rod 23b. A tip portion 23a of the support rod 23b is bent inward and can hold the electric wire 2.

The terminal gripping hand 22 is shown in FIGS.
15, a pair of straight support rods 22b, 22b having the tip end portion 22a protruding in the horizontal direction and pivotally supported by a pin 28 on the upper side, and the support rod 22b having a frame-like holder 2
9 is composed of a spring 30 that presses from the outside in the closing direction and an adjustment screw 31 that similarly regulates the opening angle. The upper end 22c of the supporting rod is pressed by the cylinder 32 to open it, and at the time of closing, the upper end The roller 33 is abutted against the inner tapered surface 22d and locked. Both gripping hands are 22,
23 It is possible to move up and down as shown in FIGS. In the above-described two embodiments, the electric wire 2'may be separated only by the terminal gripping hands 8 and 22 without providing the electric wire separating arms 9 and 9 '.

16 to 18, the terminal 3 is guided between the pair of wire separating arms 86, 86 so that the terminal accommodating chamber 1 is formed.
1 shows an example in which the data is inserted into 1. That is, the pair of electric wire separating arms 86, 86 has a tip separating portion 87 projecting forward as shown in FIG. 16 and a pair of opposed claw portions 89, 89 projecting forward from the separating portion 87 to form an inner guide surface 88. And a pair of claw portions 89,
89 can be opened slightly wider than the width of the opening 11a of the terminal accommodating chamber 11 (in the retracting operation, it is opened one step larger like a chain line).

Then, as shown in FIGS. 17 to 18, the pair of claws 89, 89 are formed in the opening 1 in a state of being extremely close to the opening 11a.
The terminal 3 which is opened to the width of 1a and is held between the claws 89 and 89 by the terminal holding hand 90 at the rear is guided and inserted along the inner guide surface 88, and the tip of the terminal 3 is inserted into the opening 11a. At that time, the electric wire gripping hand 91 is pressed and pushed. This ensures that the terminal 3 is inserted without interfering with the opening edge 11a '. The wire separating arm 86
16 is axially supported by the holder 92 as shown in FIG. 16, and the terminal 3 is supported by a pair of block hands 93, 93 facing the holder 92.
It can be detached and replaced according to the type of connector housing 7 '.

FIG. 19 shows another embodiment of the wire separating arm. The electric wire sweeping arm 50 is composed of a pair of triangular guide arms 52, 53 having tapered guide surfaces 51, 51 for guiding the terminals at the rear portion. The pair of guide arms 52 and 53 each have a triangular pyramidal tip portion 54, and each tip portion 54 is joined when both guide arms 52 and 53 are closed to form one triangular pyramidal tip portion 54 '. (FIG. 20).

The inclined guide portion 5 with respect to the terminal 3 is provided above the inner side wall 55 on the joint surface side of the one guide arm 52.
A guide wall 57 having 6 is provided so as to project, and an accommodating cutout portion 59 for the guide wall 57 is provided on an inner wall 58 of the other guide arm 53 that faces the guide wall 57. The guide wall 57 is completely housed in the housing cutout 59 when the two guide arms 52, 53 are combined. The two guide arms 52, 53 are joined by joining the inner side walls 55, 58 to each other to have a wedge shape in cross section, the wedge top portion 60 is directed to the connector housing 7 side, and the rear end wall 62 is connected to the terminal gripping hand 8 and the wire gripping hand. It is arranged so as to be vertically and horizontally movable toward and away from the terminal 4 with electric wire held by the hand 10.

As shown in FIGS. 20 (a) and 20 (b), the wire separating arm 50 extends from above along the partition wall 21 of the desired terminal accommodating chamber opening 11a of the connector housing 7 with both guide arms 52 and 53 closed. After being inserted, as shown in FIG. 20 (c), one of the guide arms 53 (in this example, the left side) is moved in parallel by about the width of the terminal accommodating chamber opening 11a to scrape the electric wires 2 '.

Here, the guide wall 57 provided on the right guide arm 52 projects into the gap 63 between the left guide arms 52 and 53, and the inclined guide portion 56 is located above the desired terminal accommodating chamber opening 11a. It is positioned so that the terminal 3 is guided into the accommodation chamber opening 11a together with the rear taper guide surface 51 of both guide arms 52 and 53. The wire separating arm 50 is constructed so that it can be attached / detached according to the shape of the terminal 3 or the connector housing 7, and mainly by variably controlling the opening amount of both guide arms 52, 53 by a servomotor, a ball screw or the like. The various terminals 3 and the connector housing 7 are provided with general versatility, and can be generally supported by the pair of guide arms 52 and 53.

21 to 24 show a first modified example of the wire separating arm 50. The wire scraping arm 65 is provided with an inclined guide portion 56 'having a triangular guide surface on one guide arm 66, a barbed tip portion 68 formed at the arm tip, and a tip portion 69 of the other guide arm 67. Is set to be shorter than the barbed tip 68 to form a triangular pyramid shape along the base notch 68a of the barbed tip 68, and the triangular pyramid tip 69 is formed when both guide arms 52, 53 are closed. Inside the base end cutout 68a, that is, as shown in FIG.
It is characterized in that it is housed so as not to project outward from the extension line 68b 'of the inclined surface 68b.

As a result, the shape of the tip radius 68c of the barbed tip 68 can be set large, and there is no fear of damaging the wire 2 '(FIG. 19) when it is inserted between the wires, and at the same time, the width L of the scraping arm 65 is set. Can be set to a small value to improve the insertability between wires. In the closed state of both guide arms 66, 67, a guide wall 57 'having a triangular cross-section having an inclined guide portion 56' of one guide arm 66 leads an electric wire from a front end top portion 70 of the other guide arm 67 as shown in FIG. The electric wire scraping arm 65 having a wedge-shaped cross section is formed by fitting into a notch accommodating portion 71 which is provided by completely notching toward the middle portion in the direction.

24 (a) and 24 (b), each guide arm 66, 67 is shown.
As shown in FIG. 24, the notch accommodating portion 71 (FIG. 24 (b)) of the other guide arm 67 is formed so as to extend in the arm longitudinal direction, and the guide projection 76 is interposed in the middle in the longitudinal direction so that the tip portion 69 is formed. It has a notch extension 77 that extends up to. The guide protrusion 76 is formed so as to face the lower side of the inclined guide portion 56 ′, and the front end top portion 70 is aligned with the front end top portion 78 of one guide arm 66. The one guide arm 6
6 (FIG. 24 (a)) has a flat joint surface 79 facing the other guide arm 67, a guide wall 57 'having an inclined guide portion 56' and a barbed tip 68 projecting therefrom, and a rear taper guide. The surface 51 'is formed.

The vertical length H of the guide protrusion 76 is shown in FIG.
As shown in FIG. 5, the opening width of the terminal housing chamber 11 of the connector housing 7 is set to be slightly larger, and the terminal 3 can be guided into the housing chamber 11 along the inner surface of the guide protrusion 76. In addition, the cutout width S of the cutout portions 71 and 77 in the wire lead-out direction is the distance S between which the wire can be separated from the connector housing 7 in the separation arm 50 having no cutout portion 71 as shown in FIG.
_1, the guide arm 67 when inserting the arm 65 between the wire 2 'pushing aside as shown in FIG. 25 is set to a dimension of the difference between the required minimum distance S ₂ that is not in contact with the housing 7.

The other guide arm 67 is shown in FIG.
When expanded individually as shown in (c), the cutout dimension S of the cutout portion 71
The position of contact with the electric wire 2 ′ is displaced only rearward, and the position of the scraping arm 65 can be set closer to the connector housing 7 by that much as shown in FIG. 25. Thereby, the guide protrusion 76
Is close to the opening 11a of the terminal accommodating chamber 11, and more reliable terminal insertion is possible.

21 to 25, a pair of electric wire intrusion prevention bars 72, 72 are horizontally provided near the tip portions 68, 69 of both guide arms 66, 67 (upward) in the electric wire leading-out direction (rearward). is doing. The wire intrusion prevention bar 72,
Reference numeral 72 has a tapered portion 74 that is widened and extended obliquely rearward from the side inclined surface 73 of the guide arms 66 and 67, and a straight portion 75 continuing rearward from the tapered portion 74 is wider than the guide arms 66 and 67. It is formed.

Then, as shown in FIG. 25, the guide arms 66, 6
At the same time as inserting the tips 68 and 69 of the wire 7 between the electric wires 2 ', the electric wire intrusion prevention bar 72 expands the electric wire 2'along the taper portion 74, and further inserts the guide arms 66 and 67 deeply. 2'is slidably contacted from the taper portion 74 to the straight portion 75, and the electric wire 2'hanging obliquely rearward is held in the widened state by the straight portion 75, and the electric wire 2'scraped by the guide arms 66 and 67 is Prevents the guide arms 66, 67 from entering the inside. As a result, the terminal 3 is smoothly inserted into the connector housing 7 from between the pair of guide arms 66 and 67 without interfering with the electric wire 2 '.

Further, as shown in FIG. 27, a tapered notch 94 is formed from the tip of the pair of electric wire intrusion prevention bars 72, 72 to the inner side thereof, and the electric wire 2 is hooked between the guide arms when the guide arms 66, 67 are raised. Can also be prevented. The guide arms 66 and 67 are raised when the terminal 3 is completely inserted as shown in FIG.

28 to 30 show the wire separating arm 6 described above.
5 shows a second modification in which No. 5 is further improved. As shown in FIG. 28, the electric wire sweeping arm 80 has an upper portion from the guide protrusion 76 'of the other guide arm 67' to the rearward direction.
It is characterized by offsetting and extending as in ₁ , and providing a cutout groove 82 in the wire lead-out direction in the offset portion 81. As shown in the front view of FIG. 29, the rear view of FIG. 30, and the CC sectional view of FIG. 30 in FIG. 31, the notch groove 82 is tapered upward from the front end 81a to the rear end 81b of the offset portion 81. Both guide arms 6
In the state where 6'and 67 'are combined, the notch groove 82 is located closer to the center than the side inclined surface 73' of the one guide arm 66 '.

On the upper side of the offset portion 81, F in FIG.
_{As shown in FIG. 2} , a longitudinal portion 83 further offset rearward is formed, and one guide arm 66 ′ also has a longitudinal portion 84 protruding rearward along the longitudinal portion 83. As shown in FIG. 31, the offset portion 81 is located further rearward than the notch accommodating portion 71 (FIG. 23) of the previous example (71 in FIG. 31 indicates the position of the notch portion), and the other guide as shown in FIG. When the electric wire 2'is separated by the arm 67 ', the position where it comes into contact with the electric wire 2'is further rearward, so that the separating arm 80 can be positioned in the vicinity of the connector housing 7 as in the previous example. The bending of the lead-out portion 2a of 2'is relaxed (the bending angle is reduced), and the electric wire 2'is prevented from being scratched or bent.

33 to 34, the guide arms 66 "and 67" can guide the terminal 95 having the pair of exposed curl portions 95a for contact to the terminal accommodating chamber of the connector housing without displacement in the height direction. Is shown. That is, a downward horizontal contact surface 96 for the curl portion 95a is provided at the lowermost end of the inclined guide portion 56 ″ of the one arm 66 ″ for guiding the terminal 95, and the terminal 95 is positioned within the range of the horizontal contact surface 96. It can be moved horizontally.

The guide surface of the inclined guide portion 56 "has a substantially triangular shape without the horizontal contact surface 96. In this case, there is a play G between the terminal 96 and both guide arms 66" and 67 ". In this range, the curl portion 95 rises along the inclined surface 97 on the side of the inclined guide portion, and the position of the terminal 95 in the height direction may shift. In FIG. 33, the guide protrusion 76 of the other guide arm 67 ″ may be present. 25 "(see 76 'in FIG. 29), a downward slidable contact inclined surface 98 is provided on the outer surface of the guide projection 76" to form a downward wedge shape, and the slidable contact inclined surface 98 of FIG. As described above, when the arms 66 "and 67" are inserted between the electric wires, the guide protrusion 76 "and the electric wire 2'are prevented from interfering with each other, so that the arms can be smoothly inserted.
The guide projection 76 'has a slightly wider H ₂ of the upper end surface 99 than the width H ₁ of the horizontal contact surface 96, the upper end surface 99 is positioned below the horizontal contact surface 96 when the guide arm joint The pair of guide arms have 66 "and 67" mounting holes 10.
It is fixed to the drive side (not shown) by 0 and 101.

35 to 36 show a structure in which the terminal 3 having the box-shaped contact portion 3a can be smoothly inserted between the pair of guide arms even if the terminal 3 is displaced in the rotational direction. That is, a pair of guide arms 66 ", 6
7 ″ rear taper guide surfaces 51 ₁ , 51 ₂ for terminal guide
The chamfer dimension of one taper guide surface 51 ₁ is large,
The other guide arm tapered guide surface 51 ₂ is set to be small, but which enables correcting the positional deviation of the terminals 3.

As shown in FIG. 36 (a), each guide arm 6
The 6 ″ and 67 ″ taper guide surfaces 51 ₁ and 51 ₂ are formed at the same angle with a depth dimension difference K in the terminal insertion direction. Then, as shown in FIGS. 35 (a) and 36 (b), the one end 3b of the box-shaped contact portion 3a first comes into contact with the small taper guide surface 51 ₂ when the terminals 3 are out of phase with each other in the rotational direction. Figure 3
As shown in 6 (c), in the state where the one end 3b has slidably passed through the small guide surface 51 ₂ and has begun to come into contact with the arm inner side surface 102,
The other end 3b 'has not yet come into contact with the large taper guide surface 51 ₁ . Next, as shown in FIG. 36 (d), one end 3b moves along the arm inner side surface 102, and the other end 3b 'abuts the large taper guide surface 51 ₁ . Here, the other end 3
As b ′ slides on the large taper guide surface, the terminal 3 rotates in the direction opposite to the phase shift and the phase shift is corrected, and the terminal 3 is in a horizontal state as shown in FIGS. 36 (e) and 35 (b). Is guided to the terminal accommodating chamber 11 of the connector housing 7.

[0040]

As described above, according to the present invention, the electric wire of the terminal with the electric wire in the vicinity is separated to the right and left by the electric wire separating arm or the terminal gripping hand, and the terminal is connected to the adjacent electric wire. Since it can be smoothly and surely inserted into a desired terminal accommodating chamber in the housing without interference, it is not necessary to sequentially insert the terminals from the end of the housing as in the conventional case, and the terminals are randomly arranged with respect to the connector housing. It can be inserted, which eliminates the need for rearranging the terminals with electric wires, thus reducing tact and downsizing the production line. Since there is no rearrangement, there is no limit to the number of terminals with electric wires that can be set, and a multi-circuit wire harness can be manufactured.

Further, by opening a pair of arms having an inclined guide portion with respect to the terminal between the electric wires as claimed in claims 3 and 5, it is possible to separate the electric wires and guide the terminal to the connector housing by the inclined guide portion. Terminal insertability is improved. By inserting the tip of the guide arm along the partition wall of the housing chamber as in claim 4, the electric wire is scraped off and the terminal insertion path is secured by the operation of opening only one guide arm, which enables quick terminal insertion. Becomes Further, by providing the horizontal contact portion in the inclined guide portion as in the sixth aspect, the positional deviation of the terminal having the curl portion in the height direction is prevented, and the terminal can be surely inserted. Further, by providing the other guide arm with the notch as in claim 7, the guide arm can be brought close to the connector housing by the notch length of the notch, and the guide protrusion can be brought close to the accommodation chamber opening to insert the terminal. Certainty is improved. This effect becomes more remarkable by providing the guide arm with the offset portion having the notch groove, and at the same time, excessive bending deformation and damage of the electric wire can be prevented.

Further, by forming the slidable contact slanted surface on the guide protrusion as in claim 8, interference with the electric wire when inserting the guide arm between the electric wires is prevented, and smooth arm insertion is possible. . Further, by providing a barbed tip on one arm and positioning the tip of the other arm inside the barbed tip as in claim 10, the insertability of the arm between the electric wires is improved. Damage to the wires is prevented. Further, by varying the size of the tapered guide surfaces for guiding the terminals of the left and right guide arms as claimed in claim 11, even if the terminals are displaced in the rotational direction, the displacement is corrected and smooth terminal insertion is performed. Is possible.
Further, by providing the wire intrusion prevention bar as in claim 12, it is possible to prevent the wires from wrapping around the inside of the guide arm, and to insert the terminal more reliably. By forming the tapered notch in the wire intrusion prevention bar as in claim 13, it is possible to prevent the wire from being caught between the guide arms when the guide arm is pulled up, and a smooth arm operation can be performed.

[Brief description of drawings]

FIG. 1 is an overall perspective view showing an embodiment of a method of inserting a terminal with an electric wire according to the present invention.

FIG. 2 is a side view showing the action of the portion A (insertion head) in FIG. 1 and showing a state in which the electric wires are separated by the wire separating arm.

FIG. 3 is a side view showing a state in which the terminal gripping hand is used for scraping.

FIG. 4 is a side view showing a state in which terminals are also inserted.

FIG. 5 is a side view showing a state in which terminals are also inserted.

FIG. 6 is a front view showing an electric wire sweeping arm.

FIG. 7 shows an example of inserting a terminal with electric wire in a vertical direction,
It is a perspective view of a state where an electric wire sweeping arm is advanced.

FIG. 8 is a perspective view showing a state where the scraping arm is used for scraping.

FIG. 9 is a perspective view showing a state where the scraping arm is also moved rearward.

FIG. 10 is a perspective view showing a state in which the scraping arm is also opened.

FIG. 11 is a perspective view of a state in which a gripping hand that also grips a terminal with an electric wire enters.

FIG. 12 is a perspective view of a state in which the terminal gripping hand also assists in scraping the electric wire and inserting the terminal.

FIG. 13 is a front view showing details of a terminal gripping hand and an electric wire gripping hand.

FIG. 14 is a front view of the same state where the terminal gripping hand is opened.

FIG. 15 is a front view of a state in which the electric wire gripping hand similarly inserts the electric wire-equipped terminal.

FIG. 16 is a perspective view showing a modified example of the wire separating arm.

FIG. 17 is a front view showing a state in which the wire separating arm is also brought close to the opening of the terminal accommodating chamber.

FIG. 18 is a front view showing a state in which a terminal is also inserted between the wire separating arms.

FIG. 19 is an exploded perspective view showing another embodiment of the wire separating arm.

[Fig. 20] Similarly, showing the action of the wire separating arm,
(a) is a front view showing a state where an arm is inserted between electric wires, (b) is a front view showing a state where the arm is inserted, and (c) is a front view showing a state where the electric wires are scraped off.

FIG. 21 shows a first modified example of the wire separating arm,
(a) is a rear view and (b) is an enlarged view of the front end portion in a closed state.

FIG. 22 is a sectional view taken along line BB of FIG.

FIG. 23 is a side view of the same.

FIG. 24A is a side view of one guide arm, and FIG. 24B is a side view of the other guide arm.

FIG. 25 is a side view showing a wire-scraping position of the wire-scraping arm in the first modification.

FIG. 26 is a side view showing a wire separating position of the electric wire separating arm when the guide arm has no notch.

FIG. 27 is a plan view showing another embodiment of the wire separating arm.

FIG. 28 is a side view showing a second modified example of the wire separating arm.

FIG. 29 is a front view of the same.

FIG. 30 is a rear view of the same.

31 is a cross-sectional view taken along the line CC of FIG.

FIG. 32 is a cross-sectional view showing a state in which the electric wires are scraped off.

FIG. 33 is a front view showing a third modified example of the wire separating arm.

FIG. 34 is a rear view of the same.

FIG. 35 shows a fourth modified example of the wire separating arm,
(a) is a rear view showing a terminal position shift state and (b) a correction state.

36 (a) to 36 (e) are plan views showing a process of correcting the positional deviation of terminals.

FIG. 37 is a schematic view showing a conventional example.

[Explanation of symbols]

8,22 Terminal gripping hand 9,9 ', 50,65,80 Electric wire separating arm 51 ₁ , 51 ₂ Tapered guide surface 52, 53, 66, 67, 66', 67 ', 66 ", 6
7 "guide arm 56,56 'inclined guide part 59,71 accommodation notch part 68 edgy tip part 68a base end notch part 72 electric wire intrusion prevention bar 76,76', 76" guide protrusion part 77 notch extension part 81 offset part 82 Notch groove 94 Tapered notch 96 Horizontal contact surface 98 Sliding contact inclined surface

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takamichi Maejima 206-1 Nunobikibara, Haibara-cho, Haibara-gun, Shizuoka Prefecture, Yazaki Parts Co., Ltd. Parts Co., Ltd. (72) Inventor Osamu Yamashima 206-1 Nunobikibara, Hara-cho, Haibara-gun, Shizuoka Yazaki Parts Co., Ltd. (72) Fumio Kato 206-1 Nunobikihara, Hara-cho, Haibara-gun, Shizuoka (72) Inventor Toshinori Ikura 206-1 Nunobikihara, Haibara-machi, Haibara-gun, Shizuoka Prefecture Yazaki Parts Co., Ltd.

Claims (13)

[Claims] 1. A method of inserting a terminal with an electric wire in which a terminal with an electric wire is grasped by an electric wire gripping hand and a terminal gripping hand and inserted into a terminal accommodating chamber of a connector housing, wherein an electric wire already inserted in an adjacent terminal accommodating chamber is used. On the other hand, the terminal with electric wire is inserted after the terminal gripping hand is moved in the wire scraping direction. 2. An insertion method of a terminal with an electric wire in which a terminal with an electric wire is grasped by an electric wire grasping hand and a terminal grasping hand and inserted into a terminal accommodating chamber of a connector housing, the opening of the terminal accommodating chamber and the terminal grasping hand. Between the electric wire separating arm or the electric wire separating arm and the terminal gripping hand that are provided so as to be able to move back and forth between the electric wires already inserted in the adjacent terminal accommodating chambers in the separating direction, and then the terminal with the electric wire is moved. A method of inserting a terminal with an electric wire, characterized by inserting the terminal. 3. A pair of guide arms having an inclined guide portion for the terminal and an accommodating cutout portion for the inclined guide portion are closed and inserted between adjacent electric wires already inserted in the terminal accommodating chamber of the connector housing. , After opening the pair of guide arms and scraping the electric wires, a terminal is inserted between the pair of guide arms from the rear end of the guide arm,
A method of inserting a terminal with an electric wire, characterized in that the terminal is inserted into a terminal accommodating chamber along the inclined guide portion. 4. The wire according to claim 3, wherein the ends of the pair of closed guide arms are inserted between the electric wires along the partition wall of the terminal housing chamber of the connector housing, and only one guide arm is opened to separate the electric wires. How to insert terminals. 5. A pair of guide arms, each having a triangular pyramid-shaped tip portion and having a triangular shape in cross section, which are wedge-shaped at the time of joining, and one guide arm has an inclined guide portion projecting toward the terminal on the joining surface side. The other wire guide arm has a cutout portion capable of accommodating the inclined guide portion. 6. A horizontal contact surface for the contact curl portion of the terminal is formed on the inclined guide portion having a substantially triangular guide surface, and the curl portion can be horizontally moved within the range of the horizontal contact surface. Item 5. The wire separating arm according to item 5. 7. The cutout portion is formed by cutting out from the front end portion of the other guide arm in the wire lead-out direction and extending in the longitudinal direction of the other guide arm, and facing the inclined guide portion. 7. The wire separating arm according to claim 5, wherein a guide protrusion extending to the front end is formed on the guide arm, and a terminal with a wire can be inserted along the inner side surface of the guide protrusion. 8. The wire separating arm according to claim 7, wherein a slidable contact inclined surface for the electric wire is formed on an outer surface of the guide protrusion, and the guide protrusion has a wedge shape in a wire insertion direction. 9. An offset portion extending in the wire lead-out direction is provided in the vicinity of the guide protrusion of the other guide arm, and a cutout groove in the wire lead-out direction is provided in the offset portion so that the wire can be scraped off by the cutout groove. An electric wire sweeping arm according to claim 7 or 8. 10. The guide arm-shaped tip portion is formed on the one guide arm, and the tip end portion of the other guide arm is formed shorter than the barbed tip end portion and accommodated in the base end cutout portion of the guide arm-shaped tip portion. The wire scraping arm according to claim 5, wherein the barbed tip can be inserted between the wires. 11. A taper guide surface for guiding a terminal is formed at the inner rear end of the pair of guide arms so that one guide arm and the other guide arm have different chamfered dimensions, and the terminal is provided with each taper guide surface. The wire sweeping arm according to claim 5, wherein the positional deviation of the terminal in the rotation direction can be corrected by sequentially slidingly contacting the wire. 12. An electric wire intrusion prevention bar having a taper portion that spreads outward from the guide arms is provided in the vicinity of the distal end portions of the pair of guide arms in the electric wire lead-out direction to prevent the electric wire intrusion when the guide arms are inserted between the electric wires. The electric wire separating arm according to claim 5, wherein the electric wire can be pushed outward by the bar. 13. The electric wire according to claim 12, wherein a tapered notch portion is formed from a tip of the pair of electric wire intrusion prevention bars to an inner portion, and the taper notch portion prevents the electric wire from being caught between the pair of guide arms. Scraping arm.