JP3221358B2 - Wire insertion device to grommet - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric wire insertion device for inserting an electric wire through a grommet. In particular, the present invention relates to inserting a grommet into an electric wire inserted into a tube.

[0002]

2. Description of the Related Art Japanese Utility Model Laid-Open Publication No. 6-88127 discloses an apparatus capable of simultaneously inserting a plurality of electric wires through a grommet. This device includes a holding portion for holding a grommet on a fixed base, a wire positioning portion, and an operation lever.
The electric wire positioning part comprises an electric wire pressing part for holding the electric wire on the electric wire alignment table, and this electric wire pressing part can be opened and closed. The operation lever is for operating the grommet holding tool so as to be in contact with or separated from the wire positioning portion.

[0003]

In this conventional device, there is a possibility that the wire coating may be damaged or deformed when the wire is inserted through the grommet. In particular, in the case of bending an electric wire coated with a polyfluoroethylene resin, the bending habit cannot be removed, and the airtight performance with the grommet is reduced, and the predetermined waterproofness may be impaired. When the conventional device is applied to the electric wire inserted into the tube, it is necessary to insert the grommet while feeding out the electric wire from inside the tube. Further, in the conventional device, when inserting the electric wire into the grommet, it is necessary to take the timing between the opening and closing operation of the electric wire pressing part of the electric wire positioning part and the operation of the operation lever of the grommet holder side, and a considerably troublesome operation has been forced. .

[0004] The present invention has been made in view of the above-mentioned problems, and a first object of the present invention is to provide an apparatus capable of inserting an electric wire into a grommet while preventing damage or deformation of the electric wire and the grommet. is there.

A second object of the present invention is to provide an electric wire insertion device which can cope with electric wires inserted into a tube.

A third object of the present invention is to provide an electric wire insertion device capable of appropriately positioning a held electric wire in an insertion hole of a grommet for inserting the held electric wire.

A fourth object of the present invention is to provide an electric wire insertion device which enables automatic operation of the electric wire holding side when the electric wire is inserted through the grommet, thereby improving the working efficiency.

[0008]

According to the present invention, an upper portion and a lower portion of a wire holding portion of a wire insertion device which form a space for accommodating at least one wire are connected to each other via a hinge. The movement of the at least one electric wire in the space is restricted while being closed to each other. In particular, said space is said at least one
It is sized and shaped to hold the book wires without damaging their coating, in which the wires are simultaneously aligned and guided correctly. For this reason, the movement of the electric wire is forbidden in all but at least one direction when the upper part and the base part are closed to each other, especially when a closing force is applied. The restriction of movement can be released by releasing the forces on the top or base or by opening them.

Preferably, the space is at least partially provided for accommodating a tube covering at least one electric wire. In uses where it is necessary to allow or forbid relative movement of the wires through a tube that covers at least one wire, handling of the wires covered by the tube by forming the space as described above Becomes easier.

[0010] Preferably, the movement of the at least one electric wire is at least partially restricted by applying a force to a tube covering it. Thus, the movement can be limited in one direction without directly impacting the held wires. The direct action on the wires may additionally limit movement of the wires in other directions. For optimal protection of the retained wires, the tube should be
It is preferably present between the base and at least one electric wire. For this reason, the tube damages the held wires,
It is used as an intermediate means for protecting against deformation and the like.

The electric wire holding portion according to the present invention preferably constitutes one of the walls forming the space. In particular, it further comprises a wedge-shaped or stepped plate. Providing such a plate on the top constitutes a movable, in particular adjustable upper wall acting on the holding wire, which can better restrict the movement of the wire. Particularly if a stepped plate is provided, one part exerts force on the tube and the other part can act directly on the electric wire. Also, by using a stepped plate, the movement of the tube or its restoration in the event of compression deformation is limited independently of the restriction of the movement of the wire.

Preferably, the space accommodating the at least one electric wire or the tube is tapered or stepped in order to change the degree of restriction of the movement of the electric wire accommodated in the space in the longitudinal direction. ing. In addition, by adjusting the entire space to the shape and size of the electric wire or tube, the movement of the electric wire or tube can be appropriately restricted. In particular, when the space accommodating the electric wires and the tube is stepped, a large space for accommodating and holding the tube and a small space for accommodating and holding the electric wire can be formed. In addition, by providing a space in which the width changes, particularly a tapered or stepped space, the ability to guide the wire holding portion can be improved.

[0013] Preferably, the space is provided for accommodating at least two electric wires, and further comprises partition means for partitioning the space so as to form a sub-space for a single electric wire or a group of electric wires. By providing the partitioning means, the electric wires can be properly aligned and oriented, and thereby can be accurately positioned. The partition member can limit the movement of the holding wire to some extent,
With this configuration, when the top and the base are closed to each other, a more uniform force can be applied to the electric wire.

[0014] The wire holding portion preferably further comprises tube holding means for preventing movement or passage of the tube covering the wire in the space. The wire covered by the tube can be retained with or without a specific interaction with the tube. The tube holding means also acts to prevent the compressed or deformed tube from restoring.

The partition means preferably comprises a pin or a plate extending substantially perpendicular to the length direction of the electric wire. In particular, it is preferred that one of the pins or the end of the plate acts as tube holding means. Further, it is preferable that the upper portion and the base portion are formed so that the opening and closing thereof are not hindered by the partitioning means, and in particular, it is preferable that a concave portion for accommodating the partitioning means when they are closed is formed. Therefore, the opening and closing of the upper portion and the base portion are not hindered, and the stability or strength of the partitioning means can be improved.

It is preferable that the partition means is connected to the upper portion and the base portion via a hinge, particularly at the same hinge point. Therefore, for example, the plate-shaped partition means can be opened and closed with respect to the upper part and the base part. In particular, the movements of the partitioning means, the upper part and the base are connected by mechanical devices such as gears, cams and cam followers. Partition means
It is preferable to connect via hinges at the hinge points of the upper part and the base as a particularly simple structural design, but a simpler structure may be adopted to move the partitioning means independently of the closing operation of the upper part and the base. . Therefore, the partitioning means extending substantially parallel to the length direction of the electric wire can move only when the upper part and the base part are opened to some extent. It is not always necessary to connect the partitioning means via a hinge,
The partitioning means may be inserted between the wires, especially at the required positions of the top and base, ie when the top and base are opened and closed, ie moved relatively.

Preferably, the partition means comprises a partition plate which extends between the top and base when they are closed to each other, ie, extends in a plane substantially parallel to the plane in which the wires extend. The partitioning means may extend over the entire surface of the upper portion and the base portion, or may extend over a part thereof. In particular, one end of the partitioning means acts as a tube holding means. In addition, several partitioning means may be used together. In particular, when several movable partitioning plates are provided, each of the electric wires can be selectively held or released by selectively moving one of them. However, for ease of use, it is preferred that the movement of the divider follow the movement of the top and base.

Preferably, the partitioning means functions as tube holding means for preventing passage of the tube covering the electric wire in the space. This can hinder the movement of the tube while the wire is moving, especially when the top and base are unstressed or at least partially open. Thus, the wires covered by the tube can be handled without the need for additional components to hold or restrict the movement of the tube.

In other uses, it is cumbersome to handle tubes that are deformed or compressed, especially due to the movement of the wires. A deformed or compressed tube tends to hinder insertion due to its elastic restoring force. For this reason, the tube holding means must also be able to prevent the restoration of the compressed or deformed tube. In particular, the tube holding means has a locking portion or a contact portion so that the tube does not act on the grommet.

[0020] Preferably, the wire holding part further comprises at least one biasing means for biasing the upper part, the base or the partitioning means, in particular, for biasing with a spring. By providing such biasing means, the top and base or partition means can be biased to the open or closed position. In both cases, the biasing force directly affects the force applied to the top and base to appropriately restrict the movement of the wire or tube. Since the urging means sufficiently applies the required force, it is possible to provide an electric wire holding portion which does not need to apply any force during holding the electric wire. In particular, when the biasing means is also provided for the partitioning means, by adjusting the biasing force, the force acting on the electric wire on one or both sides of the partitioning means can be adjusted. Preferably, the biasing means is constituted by a spring provided at the hinge point of the upper part and the base, or at the hinge point of the partition means.

The biasing means is formed integrally with or surrounding the partitioning means or other means extending substantially perpendicularly to the length direction of the electric wire, and the other means is provided at the upper part and the base part or at the partitioning part. You may make it contact | abut or guide a board.

It is preferable that a mark for identifying a wire insertion position is further provided. This makes it easier to use,
It is possible to prevent an incorrect wire insertion arrangement. In particular, the mark may be a color or index means corresponding to each holding wire. These marks may be removable or replaceable.

The wall forming the space or partition means
It may have a chamfered or tapered end. By providing such a chamfered or tapered end, the workability of inserting the electric wire into the electric wire holding portion is improved.

Preferably, the upper and the base or the partitioning means, in particular the hinged partition, are provided with recesses for better accommodating and guiding the held wires. By accommodation or guidance by this recess,
The restriction of the movement of the holding wire can be realized and improved. Also, a wedge-shaped or stepped plate may be provided in association with each recess to accommodate each wire, each wire group or tube covering the wires. If different wires, especially wires of different diameters, are used, if the wire holder is formed in a replaceable recessed recess to accommodate different specifications, no completely different wire holder is required.

Preferably, the wire holder further comprises a lever or locking means for closing the upper and the base together or locking them in the closed position. By using this locking means, the operator does not need to press the wire holding portion by hand to hold the wire, and both hands can be kept for other work. Is improved. It is preferable that the locking means can set the wire holding portion to a different locking position so that a load acting on the wire holding portion at the locking position can be selected. That is, the wire holding portion can be set to a locking position where no force acts on the wire, or can be set to one or more locking positions where different forces act on the wire. Preferably, the locking means can quickly change or release each locking position.

Further, it is preferable to further comprise at least one cam means for restricting the movement of the electric wire, in particular, an eccentric cam or a cam portion. The advantage of the use of the cam means is that the force acting on the wire depends on the position of the cam means and is therefore particularly adjustable. When using an eccentric cam or cam portion, the relative movement of one or more wires engaging the eccentric cam means is forbidden in one direction and allowed in the opposite direction. This is because self-locking occurs with movement in one direction and not with movement in the opposite direction. For this reason, the cam means is preferably supported on an axis extending substantially perpendicular to the length of the wire or the direction of its movement.

[0027] Preferably, at least one cam means is provided on each of the top and base to double the effect. That is, when holding the electric wires arranged in one layer, the cam means acts on that layer in the vertical direction, and when holding the electric wires arranged in two layers, the upper cam means and the base cam means have the corresponding layers. Acts on wires. At least one, preferably two or more, cam means may be provided for each wire to independently limit the movement of each wire. The cam means is preferably designed and sized so as not to interfere with the upper and base portions or the partition means, that is, to act only on the holding wires.
Also, the cam means desirably acts as guide means. That is, several cam means, especially inclined cam means, are used to properly align and guide the holding wires. Even if the cam means is provided in the partition means, substantially the same results and effects as described above can be obtained.

Further, there may be further provided a cam urging means for urging the cam means, preferably for urging with a spring force, and more preferably for urging the cam means with an adjustable spring force.
By adopting such a design, the wires can be moved in only one direction without the need for manual work by the operator, i.e. to prohibit the movement of the wires in some other or all directions. Can be held by the wire holding portion at the locking position. In particular, by using adjustable cam biasing means, the force of the cam means acting on the holding wire can be optimally adjusted to prevent damage to the holding wire. Also, the use of cam means considerably increases the possibility of automation of the wire holding part, for example, allowing movement of the holding wire in only one direction and inhibiting relative movement of the wire in the other direction. The force acting on each wire may be selected or adjusted according to different wire diameters or materials.

Preferably, the electric wire holding part, especially the upper part, the base part, the partition means or the cam means, has a surface at least partially aligned with the accommodated electric wire, especially a substantially semicircular cross section or the outer shape or outer shape of the holding electric wire. A surface having a groove of another shape corresponding to the above is formed. In addition, by making the corresponding semicircular surface a buried structure, each surface can be adjusted according to electric wires of different sizes or shapes.

It is preferable that the upper portion, the base portion, the partition means or the cam means have a corrugated surface or a rubber-coated surface having a large frictional resistance. When a wavy surface is used, it is particularly preferable to form a saw-tooth waveform in which the required holding force can be obtained in one direction of movement of the holding wire and friction is not increased or reduced in the opposite direction. . The use of a rubber-covered surface can provide better protection against damage to the holding wire while better restricting movement.

In the electric wire holding portion according to the present invention, the space or sub-space for accommodating one electric wire or one electric wire group is given by the size of each electric wire or directly to each electric wire or via a tube covering the electric wire. Preferably, it can be adjusted independently according to the force. With this configuration, the ability to guide, hold, or restrict movement of the wire holding portion can be selected or adapted according to the specific assembly or combination of the held wires, so that the versatility can be greatly improved. Of course, some or all of the above-described features may be combined in order to realize a wire holding portion corresponding to a specific specification.

An apparatus according to the present invention for inserting at least one electric wire through a grommet having a hole through which the electric wire is inserted is provided with an electric wire holding portion having the above preferred features of the present invention. The apparatus includes a grommet holding portion for holding a grommet through which at least one electric wire is inserted so as to be aligned with a portion where the wire is held, and operating means for relatively moving the wire holding portion and the grommet holding portion. . Thus, the device allows automation and its use is easy. This device allows at least one wire to be inserted through a grommet (this part may be made up of several sub-parts) without damaging, deforming and in particular bending the wire. In particular, when a long electric wire is inserted through the grommet, this operation is performed in a few strokes by reducing the relative movement amount between the two holders in order to prevent the electric wire between the electric wire holding portion and the grommet holding portion from being bent or deformed. The relative displacement is preferably within 30 mm, but this length depends on the strength, type, and other factors of the wire. Any suitable means such as a simple hinge lever, a spindle, a screw, a ball screw means, a hydraulic or pneumatic cylinder may be used as the operating means. In addition, both holders can be urged to each other so that the relative movement by the operating means is only in one direction. In this case, it is preferable that the relative movement be in the insertion direction of the electric wire. It should be noted that all the features and advantages obtained by the different aspects of the electric wire holding portion according to the present invention are similarly applicable to this insertion device.

The grommet holding portion preferably has positioning means for positioning the grommet so that the wire can be easily inserted. The positioning means may be provided integrally at the location where the component is to be held, in particular in the form of projections or pins. The positioning means may also be a separate means for pre-aligning, positioning or inserting the wires with respect to the component. The wires and grommets are then placed in the wire and grommet holders. The grommet holding portion generally has the same configuration as the wire holding portion or another known configuration. In particular, the grommet holding portion may be connected to each other via a hinge, and may include an upper portion and a base portion that form a space for accommodating at least one electric wire. Further, it is preferable that the grommet holding portion has a space or an opening that allows the electric wire to pass through the grommet. The parts are preferably held on the grommet holding part so as to have little play, and in particular without load. Correctly orient the wires to the components, place them,
Alternatively, an identification or positioning mark may be provided on one of the grommet holding portion and the positioning means for alignment.

A method according to the invention for inserting at least one wire through a grommet includes the steps of holding the wire so as to limit movement of the wire, and moving the grommet relative to the held wire. Through a wire. In particular, the method may be performed using the preferred wire holder or wire insertion device described above.
In this case, the method is suitable for reliably inserting the wire through the grommet without damaging the wire, particularly without causing deformation or bending. The method also enhances the potential for automation, makes it easier to use, allows for many applications, and is suitable for inserting wires through any part that has openings through which wires are inserted.

If the at least one wire is at least partially covered by a tube, the wire holding step is at least partially achieved by the force applied to the tube to reduce or eliminate the force acting on the wire. And the electric wire protection ability can be further enhanced.

Finally, in the electric wire holding step, it is preferable that movement of the electric wire in all directions except one direction is restricted. With such a process, there is no need to perform any operation on the wire holding unit in the process of inserting a predetermined amount of wires in the next stage, so this method can be performed much faster,
Further, automation is enabled.

In summary, the present invention reliably damages delicate electric wires such as those coated with a polyfluoroethylene resin,
Wire holding part that can protect against deformation and bending,
And a device and method for inserting at least one electric wire through the grommet. It also increases the potential for automation and achieves ease of use. The grommet can also be protected from damage without the need for oil or other lubricants. A large number of wires, in particular a large number of wires with separated insulation at the ends (so-called semi-stripped state) or covered with one or more tubes, can also be handled. The present invention can be applied to various purposes using wires of different lengths, types, diameters, etc., tubes,
In particular, the burden of handling glass fiber tubes is reduced.

The above and further features and advantages are merely examples and will become more apparent when reading the following description of preferred embodiments of the invention, which should be considered with reference to the accompanying drawings.

[0039]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, a preferred embodiment of the wire insertion device according to the present invention will be described with reference to FIGS. This wire insertion device has an operating means 520 mounted on a substrate and a swingable lever mechanism whose initial position is shown in FIG. The actuating means 520 is a movable rod 5
35 and a wire guiding means 526 having a wire length mark 537
Is provided. The end of the rod 535 on the side opposite to the operation lever is connected to the grommet holding means 510 via the screw means 522.
Fixed to In the illustrated embodiment, the grommet holding means 510 is a grommet holding portion slidably disposed on the substrate so as to move linearly when the operating lever is operated. The operating means 520 for moving the grommet holding portion 510 relatively to the wire holding portion 10 placed on the substrate, particularly the wire holding portion 10 mounted on the opposite side to the operating means 520 of the grommet holding portion 510, is hydraulically or hydraulically driven. It can be configured using various other wire insertion devices such as pneumatic cylinders, electric motors, screws, and the like. The different features and advantages of the various available wire holders are described below. Note that all the features and advantages described below have the same effect.

The grommet holding section 510 has a base 511 and an upper part 513. As shown in FIG. 3, the base 511 and the upper part 513 are connected to each other preferably via a spring-loaded hinge 515. When closed, the top 513,
The base 511 is a space 516 for accommodating the grommet 6 to restrict its movement without clamping or deforming.
To form Care must be taken to prevent the grommet 6 from being deformed, so that the opening of the grommet 6 through which the electric wire C is inserted is prevented from being deformed.

As shown in FIG. 1, a female screw hole 513 for inserting a ball plunger for locking the grommet holding portion 510 at the locking position is formed in the base portion 511. If a corresponding hole is formed in the upper part 514 instead of the female screw hole 517, a simple hole for inserting a lock pin may be formed in the base 511. Although not shown, guide means such as a guide rail for guiding the relative movement of the grommet holding portion 510 may be provided. Of course, a passage is formed on the front and rear walls of the grommet holding portion 510 to allow passage of the electric wire inserted into the grommet 6 held.

As shown in FIG. 3, the holding grommet 6
It is preferable to provide an electric wire guiding means 526 adjacent to or integrally with the grommet holding portion 510 in order to accommodate and guide the electric wire C passed through. The electric wire guiding means 526 is mounted on the operating means 520 so as to substantially coincide with or be flush with an opening formed in the side wall of the base 511 of the grommet holding portion 510. As shown in FIG. 1, the wire guiding means 526 is a grommet 6 of the wire C.
A mark 537 indicating the amount of insertion into

The electric wire C held by the electric wire holding portion 10 can be arranged so as to be automatically inserted into the holding grommet 6 as described later with reference to FIG. In this embodiment, the end of the electric wire can be inserted into the grommet 6 in advance. Therefore, the grommet holding section 510
A concave portion for accommodating the grommet 6 is formed in an upper part 513 of the grommet. The grommet 6 is inserted into this recess before the wire C is inserted.
One or more locating pins 512 are provided to properly position and position the On the upper surface of the upper part 513, a mark or index means M which is accommodated in a recess and indicates the color or the like of a different electric wire inserted into the grommet 6 which is positioned or arranged by the positioning pin 512, in particular
Are formed. After the electric wire C is inserted into the grommet 6 in advance according to the index mark M as shown in FIG. 2, the grommet holding part 510 is opened as shown in FIG. The electric wire C is located in front of the electric wire holding portion 10 in FIG. 4, and is partially covered with a tube S located in the electric wire holding portion 10 in FIG. 5 showing another embodiment of the electric wire holding portion 10. Anyway, after positioning the grommet 6 on the grommet holding portion 510, the grommet holding portion 510 is moved to the wire holding portion 10.
Then, the lever of the operating means 520 is operated to move the grommet holding portion 510 with respect to the wire holding portion 10 so that the wire C is inserted therethrough, and as shown in FIG. The detailed operation and further features of the wire insertion device will become more apparent when reading the description of the embodiment of the wire insertion device according to the present invention described later.

Referring again to FIGS. 1 to 5, a first preferred embodiment of the wire holding portion 10 according to the present invention will be described in detail. The electric wire holding part 10 of this embodiment has a base part 12 and an upper part 14 connected to each other via a hinge 15.
The upper surface of the base 12 is provided with a concave portion that forms a space 18 for accommodating the electric wire C when the base 12 and the upper portion 14 are closed. In the embodiment shown, the space 18 is divided into sub-spaces by vertically extending pins 52. Alternatively, the space 18 can be divided by another vertically extending partitioning means such as a partition plate. Pin 52 is base 1
2, and the receiving recess 53 is formed in the upper part 14 of the wire holding part 10. By forming the concave portion 53, the base 12,
The relative movement of the upper part 14 will not be interfered.

In addition to the partition means constituted by the pins 52, there is provided tube holding means constituted by pins 66 protruding from the base 12 substantially in parallel with the partition pins 52. As apparent from FIG. 6, the tube holding pin 66 prevents the tube S from entering the space 18. The function of the partition pin 52 can be understood from FIG. 4 showing a state in which two electric wires are accommodated in each sub-space formed by the partition pin 52. The movement of the accommodated wires C is limited by the action of the base 14 on the lower two wires and the action of the upper portion 14 on the upper two wires in each subspace. Since the electric wire C is accommodated in the sub space formed by the partition pin 52 with almost no play, the accommodated electric wire C does not move due to the load acting by closing the upper portion 14 and the base portion 12. It is preferable that the pin 52 and the concave portion 53 are covered with a member having a large frictional resistance made of rubber or the like so that the upper portion 14 and the base portion 12 are closed with a small force or load.

The hinge 15 preferably has a spring 76 which biases the upper part 14 and the base 12 together. Upper portion 14 and base portion 12 are biased to an open position such that upon release of force, upper portion 14 returns to the open position. Alternatively, a biasing means, ie, a spring 76, may bias the upper portion 14, the base 12 to its closed position, in which case the operator will be able to resist the upper portion 14 and the upper portion 14 against the spring force.
Must be opened to dispose the electric wire C in the electric wire holding unit 10. Thereafter, the electric wire C is automatically held by the load of the spring 76.

As another embodiment, the wire holding portion 10 may be designed to partially accommodate the tube S covering the wire C. In this case, of course, the partitioning means can be provided only for the portion of the wire C not covered by the tube. When partitioning means are provided in this embodiment, they also act as tube holding means for preventing the tube S from entering the wire holding portion 10 or further passing through the wire holding portion 10. In the embodiment shown in FIG. 5, the upper part 14 comprises a high frictional resistance member 20 which exerts a force on the tube S contained in the space 18 when it is closed against the base 12. Therefore, the tube S
Is located between the electric wire C and the electric wire holding portion 10, so that the impact is not directly applied to the accommodated electric wire C. Although not shown,
The space 18 or the member 20 having a large frictional resistance preferably has a tapered surface or a stepped surface acting as a tube holding means so that the tube S and the electric wire C are accommodated in each part of the space 18 with almost no play. . With such a shape, the movement of the electric wire can be limited only by the force applied to the tube S as described above. Further, the movement of the electric wire can be restricted by the force applied to the tube S via the friction plate 20 when the upper portion 14 is closed.

FIGS. 8 and 8 show a third preferred embodiment of the wire holding part according to the present invention having an upper part 14 and a base part 12 connected to each other by a hinge 15. As in the above embodiment, the hinge 15 may be spring-biased. In the third embodiment, a substantially semicircular recess or groove 84 is formed in the base 12, and a partition projection 54 extending in the vertical direction is formed between the grooves 84. The upper portion 14 is configured to match the configuration of the base 12, i.e., has a substantially semicircular groove 84 defining a partition projection 54 therebetween. In the embodiment shown, a partition plate 58 is provided which extends substantially horizontally when the upper portion 14 and the base 12 are in the closed position.
The partition plate 58 is also hinged to the hinge 15, i.e., hinged at the same hinge point as the top 14, base 12. In this embodiment, different diameters of the held electric wire C,
That is, a semi-annular embedding member may be further provided to make the electric wire holding portion respond appropriately to different diameters of the electric wire composed of the core and the coating.

As can be seen from FIG. 9, the upper part 14, the base 1
When 2 is closed with the partition plate 58 therebetween, four sub-spaces 62 each accommodating one electric wire C are formed. In order to further prevent deformation of the electric wire C accommodated in the sub space 62,
As shown in FIG. 10, a corresponding recess 82 can be formed in the partition plate 58 as well. By providing the sub space 62 for each electric wire C, the sub space 62 is designed so as to impose different restrictions on different holding electric wires C.
The movement limiting force is adjustable. Further, since the shape of the sub space 62 substantially corresponds to the cross section of the holding wire C, the deformation of the wire C can be avoided, and as a result, the holding wire C is more reliably protected from damage or deformation.

In FIG. 11, grommet holding section 510
Of the sub space 62 after the movement of the
The above-described wire holding portion for holding the wire C is shown.

In the above embodiment, since the electric wires C are correctly held and positioned, the grommet holding portion 510 is provided.
The wire holding portion 10 can be used to insert the end of the wire C into the grommet 6 held by the wire. This state is shown in FIG. FIG. 12 is a partial cross-sectional side view showing the electric wire holding unit 10 and the grommet holding unit 510. This wire holding part 10 substantially corresponds to that shown in FIGS.
Furthermore, a chamfered or tapered portion 66 is formed as a tube or an abutment surface for holding the tube, not shown. As can be clearly understood from FIG.
The electric wire C is precisely arranged with respect to the opening of the grommet 6 so that the electric wire end is inserted into the opening of the grommet 6 only by moving the electric wire holding portion 10 and the grommet holding portion 510 relatively. Therefore, the end of the wire should be grommet 6 in advance.
Can be omitted.

In addition to the urging means integrated with the hinge 15,
Adjustable biasing means may be provided for biasing the upper portion 14 and the base portion 12 against each other or against the partition plate 58. This biasing means is shown in FIGS. Figures 13 and 12
3 is a partial cross-sectional side view showing details of the auxiliary biasing means. The auxiliary or temporary biasing means in this embodiment comprises a pin 73 extending through an opening formed in the partition plate 58. A spring 74 that surrounds the pin 74 and urges the partition plate 58 toward the base 12 is provided in the recess formed in the base 12. Above the pin 73, there is provided a second spring 72 that is adjustably received in a recess formed in the upper portion 14. A flange portion is formed on the upper end of the pin 73 so as to act on the upper surface of the partition plate 58. For this reason, by adjusting the spring force of the spring 72 with the screw 75 provided for that purpose, or by setting a specific spring force to the springs 72 and 74, each electric wire accommodated in the concave portion 84 forming the sub-space 62 is formed. The force applied to C can be precisely adjusted. Therefore, the springs 72, 74
Is converted into a predetermined force to act on each of the upper and lower electric wires C.

As shown in FIG. 13, the springs 72 and 74 are connected to the holding wires C as soon as the force or load applied to the upper portion 14 is released.
It also acts to allow movement. FIG. 14 shows the four electric wires C in a state where they are securely held immovably in the sub-spaces 62 formed by the concave portions 84. When the force for closing the upper portion 14 is released, the wire holding portion 10 automatically moves to the position shown in FIG.
Return to the state. In this state, the electric wire C is still in each recess 84
It is housed and guided, but without any load. Therefore, the electric wire C can be moved in the length direction.

FIG. 15 shows a fourth embodiment of the wire holding portion 10 in the open state. This electric wire holding part 10 comprises an upper part 14 and a base part 12 connected to each other via a hinge 15 as in the above-described embodiment. The wire holding portion 10 further includes a lever 92.
Locking means 94 is provided. As in the above embodiment, a space for accommodating one or more electric wires in a closed state is formed between the upper portion 14 and the base portion 12. In the embodiment shown, the electric wire accommodating space is partitioned by a partition plate 56 extending in a substantially vertical direction. One end of the partition plate 56 has an abutting surface 6 acting as a tube holding means for preventing further entry of the tube into the electric wire accommodating space.
6 are formed. The upper and lower surfaces of the electric wire accommodating space are constituted by the surfaces of the eccentric cam means 102, 104, 106 and 108. The base 12 is provided with two eccentric cam means 102, 104 on both sides of the partition plate 56,
Are provided with corresponding eccentric cam means 106, 108 which oppose the eccentric cam means 102, 104 of the base 12 when the upper part 14 and the base 12 are in the closed position.

FIG. 16 is a sectional view showing the electric wire holding portion 10 shown in FIG.
2, 106 are shown in detail. In this figure, the wire holding part 10 is in a closed and locked position. That is, the locking mechanism 9
4 is closed and lever 92 is in its upright position. The space formed by the upper part 14 and the base part 12
The wire C is held. The eccentric cam means 102 of the upper part 12 is supported by a shaft, and is urged upward by a pin 114 on which a spring 112 is mounted. The upper surface of the eccentric cam means 102 is waved to enhance frictional engagement with the housing wire C. Although not shown, the upper surface of the eccentric cam 102 has a sawtooth shape so as to increase the degree of friction against the relative movement in the direction opposite to the arrow A and apply a relatively small frictional force during the movement of the electric wire C in the direction of the arrow A. Preferably, and / or the upper surface so formed is coated with rubber.

Like the base 12, the upper part 14 also has an eccentric cam 106 which is axially supported. The eccentric cam 106 is the eccentric cam 10
2 and is urged downward by a spring 116. The spring force of the spring 116 is adjustable by a screw 118 disposed above and within the upper portion 14. In the embodiment shown, the upper eccentric cam means 106 acts on the upper electric wire C in much the same way as the lower eccentric cam means 102. As can be seen from FIG. 16, the movement of the electric wire C in the direction of arrow A is possible, but the movement in the opposite direction is prohibited. Therefore, this preferred wire holding portion 10 is provided with a holding wire C
It is advantageously used when several operations are required to pass through the grommet 6.

Further features, advantages and objects of the above-described wire insertion device and holder will become more apparent upon reading their use and the preferred embodiment of the wire insertion method according to the invention described below.

First, the wire insertion device 5 shown in FIGS.
00 and the operation of the wire holding unit 10 will be described in detail. In the first step, the wire insertion device 500 is returned to the state shown in FIG. In this state, the electric wire holding unit 10 is opened. Upper 5
The grommet holding part 510 is closed so that the mark M and the positioning pin 512 provided on the upper part 13 face upward. The operating means 520 is in a non-operating state, that is, the portion of the grommet holding portion 510 is separated from the wire holding portion 10.

In the second step, the positioning pin 512 is engaged with one specific opening of the grommet 6 so that
The grommet 6 is arranged in a recess formed in the upper part 513 of the grommet holding part 510. Some space must be left in the through hole of the grommet 6 even after the positioning pin 512 is inserted so that the end of each wire C can be inserted.
A mark or index mark M is provided at a position around the concave portion of the upper portion 513 to prevent the wire C from being misplaced or misinserted into the opening of the grommet 6. It is preferable that the electric wire C is slightly inserted into the grommet 6. After the wire end is manually inserted into the grommet 6 in advance, the grommet 6 is taken out from the recess of the upper portion 513.

In the next step, the upper part 513 of the grommet holding part 510 is opened, and the space 516 for accommodating the grommet 6 is opened.
To release. Thereafter, the grommet 6 and the wire C, which have been temporarily assembled in advance, are transferred to the grommet holding portion 510 and the wire holding portion 1.
0 each. The tube S is connected to the wire holding portion 10.
It is arranged to be located outside. Wire C is wire holding part 1
It is arranged in a space 18 constituted by a recess formed in the base 12 of the zero. In particular, as shown in FIG. 4, the electric wire C is separated by a partition pin 52 and a tube holding pin 66 and housed in the space 18. Instead of these pins,
A partition plate having a similar function can be used. In FIG. 4, the electric wires C are arranged two by two in the sub-spaces 62 on both sides of the partition plate 52.

After the provisional assembly of the grommet 6, the electric wire C and the tube S is arranged, the upper portions 513 and 14 are closed by hand or by the urging operation of the urging means 76. After holding the wire holding portion 10 and the grommet holding portion 510, they are kept pushed by hand or a screw (not shown) is locked in the closed position by a ball plunger attached to the female screw hole 517. When the wire holding part 10 and the grommet holding part 510 are closed once, the lever of the operating means 520 is moved to move the grommet holding part 510 relative to the wire holding part 10.

In the embodiment shown in FIG. 6, the grommet holding section 510 moves slidably with respect to the wire holding section 10.
Since the movement of the electric wire C is restricted by the electric wire holding portion 10, particularly in the direction corresponding to the moving direction of the grommet holding portion 510 or in the wire length direction, the electric wire C is moved to the grommet 6 held by the grommet holding portion 510. Passed. After passing through the grommet 6, the electric wire C is connected to the grommet holding portion 51.
It goes out through the path of No. 0 and is guided by the electric wire guide means 526. In the case of a polyfluoroethylene-based resin-coated electric wire, it is absolutely necessary to prevent damage or deformation. Therefore, the insertion amount of the wire C into the grommet 6 in one stroke is suppressed to a maximum of 30 mm, while the grommet holding portion 5
The force applied to limit the movement of the wire C held by the wire holding unit 10 is set as small as possible so that the wire C is not displaced in the wire holding unit 10 during the relative movement of the wire 10 to the wire holding unit 10. It is necessary.

After the first stroke of the actuation means 520, the electric wire holding portion 10 is partially opened, and the electric wire C can be moved in the length direction while the electric wire C is still guided and accommodated in the space 18.
Therefore, when the lever of the operating means 520 returns to its initial position, the wire C is pulled in the wire holding portion by the movement of the grommet holding portion 510 in a direction away from the wire holding portion 10. In this relation, the frictional force acting between the grommet 6 and the electric wire C inserted therein is larger than the force applied to the electric wire C by the electric wire holding portion 10 in the direction opposite to the moving direction of the grommet holding portion 510. . Alternatively, the frictional force between the electric wire C and the grommet 6 can be increased by further applying a force to the upper portion 513 of the grommet holding portion 510. Anyway, while pulling the electric wire C from the electric wire holding part 10, the tube S covering the electric wire C is inserted into the electric wire accommodation space 18.
Not to enter. This state is shown in FIG. 6, in which the grommet holder 510 has begun to return to its initial position. When the grommet holder 510 reaches its initial position, the movement of the wire C in the wire holder 10 is again restricted, allowing a further stroke of the actuation means 520 for passing the wire C through the grommet 6. The above steps are repeated until the electric wire C reaches the mark 537 of the electric wire guiding means 526.

The operation of the electric wire insertion device having the second embodiment of the electric wire holding portion 10 shown in FIG. 5 is substantially the same as the operation of the above electric wire insertion device with respect to the provisional assembly, the main assembly, and the stroke of the operating means 520. . However, as shown in FIG. 5, the electric wire holding part 10 of the second embodiment at least partially accommodates the tube S. For this reason, when the upper part 14 and the base 12 of the electric wire holding part 10 are closed, the movement of the electric wire C is at least partially restricted by the force applied to the tube S covering the electric wire in the electric wire holding part 10. Since the tube S is between the wire holding part 10 and the holding wire C, the wire C is more protected from being damaged. In this embodiment, the upper part 14,
When the base 12 is fully closed, urged, or biased, the tube S, the space 18 containing the wire C, or the tube S to restrict movement of the tube S, whether or not they are biased. The member 20 having a large acting frictional resistance may be designed to have a stepped surface or a tapered surface. By adopting a tapered shape or a stepped shape, it is possible to restrict the movement of the electric wire C via the tube S in the same manner as applying a force to the electric wire C. Note that a partition pin may be added to prevent the movement of the tube S. In this case, of course, instead of the tube S,
A partition pin must be provided in the space 18 that accommodates only the electric wire C. Figure 7 is a first stroke taken out of the electric wire holding portion of the electric wire insertion equipment according to the present invention,
The predetermined wire assembly after the second stroke is shown.

Next, the operation of the third embodiment of the wire holding portion according to the present invention shown in FIGS. 8 to 12 and its use in a preferred wire insertion device will be described in detail. In the illustrated electric wire holding unit 10, temporary assembly such as inserting the electric wire C into the grommet 6 in advance is not necessary. Therefore, in the first step,
The grommet 6 is disposed on the grommet holding section 510. In the next step, different electric wires C are arranged in the electric wire holding part 10.
In particular, the electric wire C is arranged on the electric wire holding portion 10 according to the mark M provided on one side surface of the electric wire holding portion 10. In order to arrange the electric wire C in the electric wire holding part 10, the upper part 14 hinged to the same hinge 15 and the partition plate 58 are opened, and the electric wire holding part 10 is opened. In this open state, the two lower wires are arranged in the concave portion 84 of the base 12, and then the partition plate 58 is closed with respect to the base 12, thereby forming a sub-space for accommodating the two lower wires. Next, the two upper electric wires are arranged on the upper surface of the partition plate 58, particularly, in the concave portion 82 formed in the partition plate 58 or in the concave portion 84 formed in the upper portion 14. For example, after arranging all four electric wires according to a mark such as a color mark M or an index mark, the upper part 14 is closed with respect to the base 12 and the partition plate 58. Therefore, four wires C
Are respectively accommodated in a specific sub-space 62 substantially corresponding to the outer shape. For this reason, when a load is applied to the upper part 14, the movement of each electric wire C accommodated in the sub space 62 is restricted in almost all directions, especially in the length direction of the electric wire C.

In one particularly preferred embodiment, each sub-space 62 is provided with a rubber coating made of, for example, the rubber component of the grommet 6 through which the electric wire C is passed. In order to satisfy the requirement of the minimum force for restricting the movement of the electric wire C held by the electric wire holding portion 10, the length of the holding portion of the electric wire C should substantially correspond to the length of the grommet 6. Therefore, the frictional force acting on the electric wire C passed through the grommet 6 is reduced by the electric wire holding portion 10.
Substantially corresponds to the frictional force applied to the electric wire C. For this reason, when it is required to restrict the movement of the electric wire C, a minimum load is applied to the electric wire holding portion 10 and the electric wire C of the electric wire holding portion 10 is
Only need to be greater than the frictional force acting between the wire C and the grommet 6. When wires covered with tubes are used, it is necessary to consider the restoring force of the tubes. Therefore, during the relative movement of the grommet holding portion 510 with respect to the wire holding portion 10, there is no need to apply a large load that clamps the wire C, and thus the wire is protected from damage.

As shown in FIG. 12, since the electric wire C is accurately arranged and positioned with respect to the opening of the grommet 6, its end can be directly inserted into the holding grommet 6.
It is preferable that the end of the concave portion of the electric wire holding portion 10 that accommodates the electric wire C is chamfered or has a tapered shape to smoothly move the electric wire when the movement is not restricted. Since the partition plate 58 extends between the group of electric wires integrally covered with the tube, it is understood that the partition plate 58 can function as a tube holding means. When different types of wires are used, a spring 74 having a predetermined spring force is used, or the spring force is adjusted by adjusting a screw 75 to selectively restrict the movement of the upper or lower wire group. , 1
It is suitable to use the biasing means shown in FIG. In the state shown in FIG. 13, the electric wire C is slidably received in the concave portion 84 without exerting any force. Therefore, as the grommet holding part 510 moves away from the wire holding part 10, the wire C
The wire is pulled out from the wire holding portion 10.

FIG. 14 shows the holding grommet 6
The wire holding portion 1 of the grommet holding portion 510
The state of the preferred embodiment of the electric wire holding unit 10 for restricting the movement of the accommodated electric wire C during the relative movement with respect to 0 is shown. Spring 72,
By applying a different spring force to 74, the movement of the lower wire is reduced by the movement of the upper wire, for example, if the upper wire is more delicate or the lower wire is covered with a coating having a low coefficient of friction. It is possible to further restrict the movement of all the accommodated electric wires C more protectively and uniformly.

Next, the use of the fourth embodiment according to the present invention,
The use of the wire insertion device according to the present invention or when the component insertion method according to the present invention is applied will be described. As in the above-described embodiment, the wire holding portion 10 can be used for both grommets and wires that have been temporarily assembled in advance, and wires and grommets that have not been assembled yet.

The electric wire C is disposed on the electric wire holding portion 10 in the open state, particularly on both sides of the partition plate 56. The lowermost electric wire is placed on the upper surface of the eccentric cam means 102, 104. Then, the upper part 14 is closed with respect to the base part 12 by moving the lever 92,
The locking mechanism 94 is locked. Therefore, the eccentric cam means 106 and 108 of the upper part 14 abut on the uppermost electric wire, and FIG.
Is obtained. Alternatively, the wire holding unit 10 is first closed and locked, and then the wire C is inserted into the grommet holding unit 510 from the opposite side. When the electric wire C is inserted, the eccentric cam means moves up and down from the passage. Since the eccentric cam means allows relative movement of the electric wire in contact with the surface, particularly the corrugated surface, in the direction of arrow A in FIG. No need to do. In particular, the grommet holding section 510 is
, The eccentric cam means slightly rotates due to the relative movement of the electric wire C in the direction opposite to the arrow A, and thereby the electric wire C
The force acting on is increased. Therefore, in the embodiment shown in FIGS. 15 and 14, the force applied to the electric wire C is the minimum force necessary for inserting the electric wire C into the grommet 6 in the step of moving the grommet holding portion 510 toward the electric wire holding portion 10. It has a function to automatically adjust the restriction of the movement of the electric wire so that it can be completed. In the step of pulling out the electric wire C from the electric wire holding part 10, it is not necessary to release the force restricting the movement of the electric wire C. This is because this is easily achieved automatically by a slight rotation of the eccentric cam means which allows movement of the wire C in the direction of arrow A.

In the embodiment described with reference to FIGS. 15 and 14, one eccentric cam means is provided for each electric wire, but all the electric wires accommodated between the upper portion 14 and the base portion 12 have almost the same function. One eccentric cam means can be provided. Similarly, two or more cam means may be provided for each wire. However, in consideration of the manufacturing cost and simplification of the wire holding portion, the above embodiment is actually preferable.

Although the different points and features of the electric wire holding portion, the electric wire insertion device, and the electric wire insertion method of the present invention have been described, different characteristics of different embodiments and various modifications thereof may be freely combined. For example, the partition plate 58 of the third embodiment may be added to the embodiment shown in FIGS. The previous embodiment described with reference to the drawings shows, at the end, the movement of the electric wire in the electric wire holding part, in the electric wire insertion device, or by the electric wire insertion method as defined in the claims, when handling the electric wire. There are examples that provide the best protection while limiting as much as necessary.

[Brief description of the drawings]

FIG. 1 is a perspective view of a wire insertion device according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a grommet positioning state with respect to a grommet holding section in FIG.

FIG. 3 is a perspective view showing a main part of a grommet accommodating space of a grommet holding section in FIG.

FIG. 4 is a perspective view showing a state in which the grommet and the electric wire which are temporarily assembled are arranged in FIG.

FIG. 5 is a perspective view corresponding to FIG. 4, showing a usage example in the second embodiment.

6 is a perspective view showing an operation of inserting an electric wire into a grommet in FIG.

FIG. 7 shows a difference in the state of the wire assembly in two different states, that is, before and after the operation of the wire insertion device according to the present invention.

FIG. 8 is a perspective view showing an electric wire holding portion in a third embodiment of the present invention.

FIG. 9 is a side view of FIG.

FIG. 10 is a detailed view showing another partition plate used in FIG. 8;

FIG. 11 is a perspective view showing a relationship between the electric wire holding unit shown in FIG. 8 and the electric wire held therein and the grommet holding unit.

FIG. 12 is a sectional view of a main part of FIG. 11;

FIG. 13 is a partial sectional side view showing a preferred auxiliary biasing means used with the third embodiment.

FIG. 14 is a cross-sectional view of a main part showing an electric wire holding state in FIG.

FIG. 15 is a perspective view showing an electric wire holding portion in a fourth embodiment according to the present invention.

16 is a cross-sectional view of a main part showing the electric wire holding state of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Electric wire holding part 12 Base part 14 Upper part 15 Hinge 18 Electric wire accommodation space 52 Partition pin 66 Tube holding pin 500 Electric wire insertion device 510 Grommet holding part 511 Base part 513 Upper part 515 Hinge 520 Operating means C Electric wire S tube

Claims (7)

(57) [Claims] A wire holding portion; a grommet holding portion for holding a grommet having a hole through which the wire is inserted so as to be substantially in line with the portion where the wire is held; the wire holding portion; and the grommet holding portion An electric wire insertion device provided with an actuating means capable of relatively moving the electric wire, wherein the electric wire holding portion has at least one inserted through the tube.
An upper portion and a base portion forming a space for accommodating the electric wires are connected to each other via a hinge, and the space is formed in a tapered shape or a stepped shape for at least partially accommodating the tube covering the electric wires, and at least one The movement of the wire
Device for inserting electric wires into a grommet, characterized in that it is at least partially restricted by applying a force to said tube covering it. 2. The electric wire holding portion is provided to form a space for accommodating at least two electric wires inserted through the tube, and further forms a sub-space for a single electric wire or an electric wire group. The apparatus for inserting a wire into a grommet according to claim 1, further comprising a partitioning means for partitioning the space. 3. A wire holding portion, a grommet holding portion for holding a grommet having a hole through which the wire is inserted so as to be substantially in line with the portion where the wire is held, the wire holding portion, and the grommet holding portion. An electric wire insertion device provided with an actuating means capable of relatively moving the electric wire, wherein the electric wire holding portion has at least 2 inserted through the tube.
A grommet provided to form a space for accommodating the electric wires, and further comprising partitioning means for partitioning the space so as to form a sub-space for a single electric wire or a group of electric wires. Wire insertion device. 4. An apparatus for inserting a wire into a grommet according to claim 2, wherein said partitioning means is connected to an upper portion and a base portion via a hinge, and is substantially parallel to a length direction of the wire. 5. An apparatus for inserting a wire into a grommet according to claim 2, wherein said partitioning means comprises a partitioning plate extending substantially between said upper portion and said base portion when they are closed. . 6. The electric wire holding part further comprises at least one cam means for restricting movement of the electric wire in all directions other than one direction, in particular, an eccentric cam or a cam part. The device for inserting an electric wire into the grommet according to 2, 3, 4, or 5. 7. The grommet holding portion has a positioning means for positioning the grommet so that an electric wire can be easily inserted into the grommet. Or an apparatus for inserting an electric wire into the grommet according to 6.