JP3240117B2 - Harness protector and connector for vehicle opening / closing part - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a harness protector and a connector for a vehicle opening / closing section which can relieve a stress applied to a harness interposed between a vehicle body and a door frame.

[0002]

2. Description of the Related Art When a harness is routed from an opening / closing part of a vehicle to another part, for example, when a harness in a door frame is connected to a harness in a vehicle body, generally, a connection between the door frame and the vehicle body is made. Grommets made of synthetic rubber have been used to hermetically secure both sides of the harness interposed between the door panel and the pillar panel as opposing walls.

As a wiring technique of a harness in a vehicle opening / closing section using a grommet, for example, Japanese Utility Model Laid-Open No. 6-4586.
A wire harness for an automobile door as described in No. 9 was present.

[0004] This door wire harness is shown in FIG.
As shown in FIG. 1, a cup-shaped grommet 111 is attached to the body side of a harness 101 interposed between a door frame 50 and a vehicle body (not shown).
01, the connector 112 is provided on the door frame 50 side.

A grommet 111 is fitted into an insertion hole (not shown) formed in a pillar panel of the vehicle body, and a connector 112 of the harness 101 is connected to the door through an insertion hole 51a formed in the door panel 51. By connecting to the flat harness 102 in the frame 50, the harness in the vehicle body and the flat harness 102 in the door frame 50 are connected. Further, when the door frame 50 was closed, the harness 101 was substantially straight, and was bent by the stress applied when the door frame 50 was opened.

In Japanese Utility Model Laid-Open No. 6-45869, FIG.
A door wire harness as shown in (b) was also described. This door wire harness has a bellows-like shape in which a grommet 122 that fits into an insertion hole of the pillar panel and a grommet 123 that fits into an insertion hole 51a of the door panel 51 are integrally formed on both sides of an elastic bellows portion 121. A grommet 120 was provided, and the harness 102 interposed between the door frame 50 and the vehicle body was covered by the bellows-like grommet 120.

In such a door wire harness, when the door frame 50 is closed, the bellows portion 121 is extended, and the harness 102 is straight inside the bellows portion 121. Further, when the door frame 50 is opened, the bellows portion 121 is in a contracted state, and the harness 102 is bent inside the bellows portion 121.

[0008]

However, in the above-described conventional wire harness for a door, the bending of the harnesses 101 and 102 interposed between the door frame 50 and the vehicle body is not regulated at all. When the 50 was opened, one portion of the harnesses 101 and 102 was excessively bent to take the shape of a "ku". For this reason, all the stresses when the door frame 50 is opened are concentrated on one bent portion of the harnesses 101 and 102, and the harnesses 101 and 102 are disconnected due to the mechanical stress of the bent portions. there were.

Further, since the above-mentioned door wire harness is configured to use the grommet 111 or 122 or 123, the grommet 111 or 122 or 123 is used.
There is also a problem that it takes time and effort to fit the 23, and it is not possible to efficiently perform the wiring harness routing work. In particular, such a problem was remarkable in the door wire harness of FIG. 7B including the two grommets 122 and 123.

In Japanese Utility Model Application Laid-Open No. 5-64004, FIG.
Accordion-shaped and roll-shaped flat harnesses 201 and 202 as shown in (a) and (b) have been proposed. Flat harnesses 201 and 202 having such a configuration
When the harness in the vehicle body is connected to the harness in the door frame through the door frame, the flat harness 201 or 202 is folded or rolled when the door frame is opened.

However, since the accordion-shaped flat harness 201 has a structure in which the inner conductor is positively bent, there is a risk of breakage due to mechanical stress in the bent portion, as in the above-described prior art. Also,
The roll-shaped flat harness 202 has a problem that it is difficult to maintain a stable roll shape after many years of use, and a large storage space is required when the flat harness 202 is in a roll shape.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and it is intended to restrict the bending of a harness routed to a vehicle opening / closing portion and to reduce a stress applied to the harness, thereby disconnecting the harness. It is an object of the present invention to provide a harness protector and a connector for a vehicle opening / closing section, which can reliably prevent the occurrence of a problem and improve the reliability of wiring in the opening / closing section.

[0013]

According to a first aspect of the present invention, there is provided a harness protector for a vehicle opening / closing section, wherein a first protect plate having a curved front half and a first half of the first protect plate are provided. A second protect plate having a rear half curved in a direction opposite to the portion, a hinge for rotatably connecting a rear end of the first protect plate and a front end of the second protect plate, and a forward rotation of the hinge. A turning angle restricting portion for restricting a moving angle, a reverse turning restricting portion for restricting rotation of the hinge in a reverse direction, and a harness routed to the vehicle opening / closing portion in a state in which the harness can be moved in its longitudinal direction. And a holding portion for holding the first and second protection plates along the first and second protection plates.

According to such a configuration, when a vehicle opening / closing portion, for example, a door frame is opened and a stress is applied, the first and second protection plates rotate the limited rotation of the hinge. Turn within the corner. Then, the harnesses held in a semi-free state by the respective protection plates also bend with the bending of the respective protection plates. At this time, both sides of the harness move in the longitudinal direction, and the stress that tends to concentrate on the center of the harness is dispersed on both sides of the harness.

After such stress distribution, the state of the harness is stabilized, and the harness draws a gentle curve along the opposite curved surface of each bent protection plate. Thus, the stress applied to the harness is substantially evenly distributed throughout the harness and is reduced. Therefore, unlike the related art, one portion of the harness does not bend excessively, and disconnection of the harness can be reliably prevented.

According to a second aspect of the present invention, there is provided a harness protector for a vehicle opening / closing portion, wherein the holding portions are provided at both ends of the first and second protect plates, respectively, and the harness protectors are provided at respective centers of the first and second protect plates. And a guide plate for guiding the harness.

With such a configuration, four positions of the harness can be held, and the first and second harnesses can be held in the most stable state while securing the degree of freedom in the longitudinal direction of the harness. It can be held on a protection plate. Further, since the guide plate guides the harness along the first and second protect plates, it is possible to suppress the bending of the harness at the center of each protect plate (between the holding portions).

According to a third aspect of the present invention, there is provided a harness protector for a vehicle opening / closing section, wherein the harness is a flat harness, the flat harness can be inserted into the holding section, and one opening is widened. The configuration is such that a substantially wedge-shaped slit is formed.

With this configuration, even when stress is concentrated near the holding portion of the flat harness,
The flat harness moves within the range of the wedge-shaped opening of the slit, and the stress at this time is reduced. Therefore, buckling of the flat harness in the vicinity of the holding portion can be reliably prevented.

The adoption of the flat harness simplifies the structure, improves the reliability of wiring, and reduces the thickness of each holding portion in accordance with the thickness of the flat harness. Can also.

According to a fourth aspect of the present invention, there is provided a harness protector for a vehicle opening / closing portion, wherein lock portions for engaging with a wall portion of the vehicle are formed on both sides of the first and second protection plates. The harness protector can be easily attached to a predetermined position, for example, between a vehicle body and a door frame.

On the other hand, the connector for a vehicle opening / closing part according to claim 5 is a harness protector for a vehicle opening / closing part according to claim 3.
Connected to the end of the flat harness in the
It is constituted that the insertion opening for the flat harness is widely opened in cross section wedge-shaped.

This connector having such a configuration is described in claim 1
The harness protector according to any one of claims 1 to 4, is used to connect both ends of the harness (flat harness). As a result, in the harness protector according to any one of claims 1 to 4, even if both sides of the harness subjected to the stress move in the longitudinal direction, the harness is prevented from buckling near the insertion opening of the connector. it can.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a harness protector and a connector for a vehicle opening / closing section according to the present invention will be described.
This will be described with reference to the drawings.

First, an embodiment of a harness protector for a vehicle opening / closing section according to the present invention will be described. FIG. 1 is a perspective view showing a harness protector according to an embodiment of the present invention, and FIG. 2 is a perspective view showing a state where a flat harness is mounted on the harness protector. FIG. 3 is an enlarged view showing a hinge of the harness protector.

The harness protector of this embodiment is configured to be mounted on a flat harness (not shown) interposed between a vehicle body and a door frame.

1 and 2, reference numeral 10 denotes a harness protector according to the present embodiment, which is a first and second protection plate 1 made of synthetic resin and connected via a hinge 19.
1 and 12. The first half of the first protection plate 11 and the second half of the second protection plate 12 are curved portions 11a and 12a that are gently curved in opposite directions.

As shown in FIG. 3, the first protection plate 11
At the rear end, a long bearing 19a forming a hinge 19 is integrally formed. At the front end of the second protection plate 12, short bearings 19 corresponding to both sides of the bearing 19a are formed.
b and 19b are integrally formed.

The bearing 19a is integrally formed with a plate-shaped rotation angle restricting portion 19d which contacts the front end surface of the second protection plate 12 and restricts the rotation angle of the hinge 19 in the forward direction. The first protection plate 1 is provided on the bearings 19b and 19b.
Plate-shaped rotation angle restricting portions 19e, 19e, which abut against the rear end surface of the hinge 1 and limit the rotation angle of the hinge 19 in the forward direction, are integrally formed.

The rotation angle limiting portions 19d, 19e, 19
The pivot angle of the hinge 19 (ie, the bending angle of the first and second protection plates 11 and 12) determined by e is the center of the flat harness 20 whose bending is regulated by the first and second protection plates 11 and 12. The range is not limited to excessive bending.

The bearing 19a is provided with a reverse rotation restricting portion 19f which contacts the rear surface of the front end of the second protection plate 12 to restrict the rotation of the hinge 19 in the reverse direction.

Further, as shown in FIGS. 1 and 2, holding portions 13, 14, 15, 16 are attached to both ends of the first and second protection plates 11, 12, respectively. , 14, 15, 16 are formed with slits 13a, 14a, 15a, 16a, into which the flat harness 20 can be inserted and whose one opening is widened, having a substantially wedge-shaped cross section.

Here, each of the holding units 13, 14, 15, 16
These wedge-shaped slits 13a, 14a, 15a, 16
The wide opening a is arranged so as to face the side where the stress of the flat harness 20 is concentrated. That is, the holding parts 13 and 16 located at both ends of the harness protector 10
The wide openings of the wedge-shaped slits 13a and 16a are disposed so as to face outward (for example, the vehicle body side and the door frame side), and the holding parts 14 and 15 located at the center of the harness protector 10 have wedge-shaped slits 14a. , 15a are arranged so that the wide openings thereof face inward.

The wedge-shaped slits 13a, 14a, 15
The width of the a and 16a in the longitudinal direction is wider than the width of the flat cable 20 in the short direction, and as shown by a chain line in FIG.
Connect the flat cable 20 to each wedge-shaped slit 13a, 14
a, 15a, and 16a, the flat cable 20 is movable in its longitudinal direction.

Further, holding portions 13 and 16 provided at both ends of the harness protector 10 have locking portions 13 respectively.
b and 16b are integrally formed. Lock part 13b
Is engaged with an insertion hole formed in a pillar panel of a vehicle body (not shown), and a lock portion 16b is engaged with an insertion hole formed in a door panel of a door frame (not shown), so that the harness protector 10 is connected to the pillar panel. It can be easily fixed between the door panels.

When the flat harness 20 is located in the vehicle body or the door frame, the harness protector 10 is also fixed in the vehicle body or the door frame. Further, if the lock portions 13b and 16b are on both sides of the harness protector 10, the holding portions 13 and 1
It may be formed in a place other than 6.

The first and second protection plates 11, 1
2, that is, the holding parts 13 and 14 and the holding part 1
Guide plates 17 and 18 are formed between 5 and 16 to guide the side edges of the flat harness 20 in the longitudinal direction.

The harness protector 10 having the above configuration
As shown in FIG. 2, the flat harness 20 is provided with a flexible structure in which a copper foil wiring is printed on a polyester film.
1 and 22 are formed. The connecting portion 21 is connected to a wire harness in the vehicle body via a connector (not shown), and the connecting portion 22 is connected to a wire harness in the door frame also via a connector (not shown). is there.

The harness protector 10 and the flat harness 20 having such a structure receive stress when the door frame is changed from a closed state to an open state, and are subjected to stress as shown in FIGS. 4 (a) → (b) → (c). After the stage of), both are bent.

That is, when the door frame is closed, no stress is applied to the harness protector 10 and the flat harness 20.
As shown in the figure, it is almost straight.

When the door frame is opened, the harness protector 10 and the flat harness 2 are opened.
When a stress is applied to the first and second protection plates 11 and 12 as shown in FIGS. 4B and 4C.
It bends within a range of nine limited rotation angles. Then, the flat harness 20 held in the protection plates 11 and 12 in a semi-free state also bends with the bending of the protection plates 11 and 12. At this time, both sides of the flat harness 20 move in the longitudinal direction thereof (arrows A and B in the figure).
), Stress that tends to concentrate at the center of the flat harness 20 is distributed on both sides of the harness.

After the dispersion of the stress, the state of the flat harness 20 is stabilized, and each of the bent protection plates 11 and
The entire flat harness 20 draws a gentle curve along the 12 opposite curved portions 11a, 12a (FIG. 4).
(C)). As a result, the stress applied to the flat harness 20 is substantially evenly distributed throughout the harness and reduced.

When the stress is concentrated near the holding portions 13, 14, 15, 16 when the flat harness 20 is bent, the flat harness 20 is
The wedge-shaped slits 13a, 14a, 15a, and 16a move within the wide openings (see arrows C, D, E, and F in the figure), and the stress in the vicinity of each of the holding portions 13, 14, 15, and 16 is reduced. Is done.

According to such a harness protector 10 of the present embodiment, the stress applied to the flat harness 20 interposed in the vehicle opening / closing portion can be dispersed and alleviated. Is not excessively bent, and disconnection of the flat harness 20 can be reliably prevented.

Each of the holding portions 13, 14, 15, 16 for holding the flat harness has a wedge-shaped slit 13a, 1a.
By forming 4a, 15a, 16a, stress concentrated near each of the holding portions 13, 14, 15, 16 can be reduced. Thereby, each of the holding units 13, 14, 1
Buckling of the flat harness 20 in the vicinity of 5 and 16 can be prevented.

Further, the first and second protection plates 11,
12, holding parts 13, 14, 15, 1
6 and the first and second protection plates 11,
Since guide plates 17 and 18 for guiding the flat harness 20 are formed at the center of each of the 12, the four positions of the flat harness 20 can be held, and the degree of freedom in the longitudinal direction of the flat harness 20 is ensured. Thus, the first and second protection plates 11 and 12 can be held in the most stable state.

In addition to this, guide plates 17 and 18
Guides the side edge of the flat harness 20 along the first and second protection plates 11 and 12, so that the center of each of the protection plates 11 and 12 (between the holding parts 13 and 14 and the holding parts 15 and 16). Of the flat harness 20 can be suppressed.

Next, an embodiment of the connector for a vehicle opening / closing section of the present invention will be described. FIG. 5 is a perspective view showing a connector for a vehicle opening / closing section according to the present embodiment.

In the same figure, the connector 30 for the vehicle opening / closing section of the present embodiment is connected to the connection sections 21 and 21 of the flat harness 20 in the above-described embodiment of the harness protector.
2 and, for example, the connection portions 41 and 51 of the wire harnesses 40 and 50 on the vehicle body side and the door frame side.
The opening 30a has a wide open substantially wedge-shaped section.

According to the connector 30 of the present embodiment having such a configuration, when the door frame is opened,
If both sides of the stressed flat harness 20 move in the longitudinal direction, stress may concentrate near the insertion port 30a of the connector 30, but even in such a case, as shown in FIG. The harness 20 moves within the range of the wedge-shaped opening of the insertion port 30a, and
Can be effectively alleviated. Thereby, buckling of the flat harness 20 in the vicinity of the insertion opening 30a of the connector 30 can be prevented.

The harness protector and connector for the vehicle opening / closing section of the present invention are not limited to the above-described embodiments. For example, the harness protector 20
Can be interposed not only between the vehicle body and the door frame but also in other opening / closing portions of the vehicle. In such a case, the same operation and effect as described above can be obtained.

The slits of the holding portions 13, 14, 15, 16 are not limited to those having a substantially wedge-shaped cross section, but may have other shapes as long as the flat harness 20 can be held so as to be movable in the longitudinal direction. Good. However, when the wedge-shaped slits 13a, 14a, 15a, and 16a are employed as in the above-described embodiment, there is an effect that buckling can be prevented while securing the holding force of the flat harness 20.

Further, the connector 30 of the above embodiment is
Although only the insertion opening 30a of the harness protector 20 is a wedge-shaped opening, the wire harness 4 on the vehicle body side or the door frame side is used.
The 0,50 insertion openings can also be wedge-shaped openings. With such a configuration, it is possible to prevent buckling of the wire harness 40, 50 on the vehicle body side or the door frame side.

In addition to these, the harness protector 10
And the connector 30 is not limited to the flat harness 20,
It can be widely used for stress relief of various types of harness such as cable.

[0055]

As described above, according to the harness protector for the vehicle opening / closing portion of the present invention, the bending of the harness routed to the vehicle opening / closing portion is regulated, and the harness protector is relaxed by dispersing the stress applied to the harness. be able to. Thereby, the disconnection of the harness can be reliably prevented, and the reliability of the wiring in the opening / closing section can be improved. When a slit having a substantially wedge-shaped cross section is formed in the holding portion of the harness, buckling of the harness in the vicinity of the holding portion can be prevented. Furthermore, since the harness protector can be easily attached to the vehicle side wall by the lock portion without using any grommet, the work of arranging the harness in the opening / closing portion can be performed efficiently in a short time.

In addition to the above, when the connector for the vehicle opening / closing part of the present invention is used, the stress dispersed on both sides in the longitudinal direction of the harness can be further reduced, and the vicinity of the insertion opening of the connector can be reduced. Buckling of the harness can be prevented.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a harness protector according to one embodiment of the present invention.

FIG. 2 is a perspective view showing a state where a flat harness is mounted on the harness protector.

FIG. 3 is an enlarged view showing a hinge of the harness protector.

FIGS. 4A, 4B, and 4C are partial sectional side views showing a series of bending operations of the harness protector and the flat harness.

FIG. 5 is a perspective view showing a connector for a vehicle opening / closing unit according to one embodiment of the present invention.

FIG. 6 is a sectional view showing a connection state of the connector.

7 (a) and 7 (b) are perspective views showing a conventional wire harness for a door of an automobile.

FIG. 8A is a perspective view showing a conventional accordion-shaped flat harness, and FIG. 8B is a perspective view showing a conventional roll-shaped flat harness.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Harness protector 11 1st protect plate 12 2nd protect plate 11a, 12a Curved part 13, 14, 15, 16 Holding part 13a, 14a, 15a, 16a Wedge-shaped slit 13b, 16b Lock part 19 Hinge 19d, 19e Rotation angle limitation Part 19f reverse rotation restricting part 20 flat harness

Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) B60R 16/02 620 B60R 16/02 621 B60R 16/02 623 B60J 5/04 H01R 13/56

Claims (5)

(57) [Claims] 1. A first protect plate having a front half curved, a second protect plate having a rear half curved in a direction opposite to the front half of the first protect plate, and a rear end of the first protect plate. Hinge for rotatably connecting the front end of the second protection plate with the hinge, a rotation angle limiting portion for limiting the forward rotation angle of the hinge, and a reverse rotation for limiting the rotation of the hinge in the reverse direction. Restriction part and harness routed to vehicle opening and closing part,
A harness protector for a vehicle opening / closing portion, comprising: a holding portion that holds the first and second protection plates along a state movable in the longitudinal direction. 2. The apparatus according to claim 1, wherein the holding portions are provided at both ends of the first and second protection plates, respectively, and a guide plate for guiding the harness is formed at the center of each of the first and second protection plates. Item 2. A harness protector for a vehicle opening / closing section according to Item 1. 3. The flat harness is formed as the harness, and a slit having a substantially wedge-shaped cross section is formed in the holding portion so that the flat harness can be inserted and one opening is widened. A harness protector for a vehicle opening / closing part as described in the above. 4. The harness protector for a vehicle opening / closing section according to claim 1, wherein a lock section for engaging with a wall section of the vehicle is formed on both sides of the first and second protection plates. 5. A harness for a vehicle opening / closing part according to claim 3.
Connected to the end of the flat harness in the protector
Is a connector for a vehicle opening and closing unit, wherein the insertion opening for the flat harness is widely opened in cross section wedge-shaped.