JP4138623B2 - Harness protector - Google Patents

Description

  The present invention relates to a harness protector that covers an injector harness that supplies current to an injector of an electronically controlled automobile engine, for example.

As an example of a conventional harness protector, a plurality of branch lines corresponding to the number of cylinders of an engine are branched from a part of a trunk line in which electric wires are bundled in a straight line, and at the end of the branched branch line A connector to which a connector is attached is known (for example, see Patent Document 1).
JP 2000-274256 A (page 2-3, FIG. 1)

  In the harness protector disclosed in Patent Document 1 described above, the length dimension of the branch line branched from the trunk line is likely to vary.

  Further, in the harness protector disclosed in Patent Document 1, it is not clear to which injector the branch line branched from the trunk line for each cylinder is assembled. There is a possibility that connectors of different branch lines may be connected to the connector, and when connectors of different branch lines are connected, there is a possibility that problems such as engine malfunction may occur.

  In addition, in the harness protector disclosed in Patent Document 1, the connector is easily swung with respect to the branch line, and the branch line may be damaged.

  The present invention has been made in view of the circumstances described above, and its purpose is to reduce the influence of variation in the length of the branch line, and to connect a predetermined branch line to a predetermined injector easily and reliably. Furthermore, it is possible to improve the quality by preventing the branch line from being damaged, and even if the connector has a pitch shift with respect to the injector, the harness protector is easy to assemble to the injector and has good workability. Is to provide.

In order to achieve the above-mentioned object, a harness protector according to the present invention is as described in claim 1.
The main line,
A branch line for supplying power to a predetermined injector of the engine, branched from the main line at a plurality of branch portions whose positions are predetermined on the main line;
A connector disposed at an end of the branch line;
A harness protector for covering an injector harness having
A harness housing part that accommodates the trunk line and the branch line and connects the respective branch parts in a continuous arch shape with a curved part or a corner part interposed therebetween, and each of the connectors is disposed adjacent to the branch part It is characterized by that.

  Thus, in the harness protector according to the present invention, the harness accommodating portion that accommodates the trunk line and the branch line connects each branch portion in a continuous arch shape with the curved portion or the corner portion interposed therebetween, and is close to the branch portion. And the connector is arranged respectively. Therefore, the branch line can be extremely shortened. Thereby, the influence of the variation in the length dimension of the branch line can be reduced, and the connector can be easily and reliably arranged at a predetermined position corresponding to the injector. Moreover, the harness protector which concerns on this invention can absorb the pitch shift of the connector with respect to an injector.

Moreover, the harness protector according to the present invention, as described in claim 2,
The harness housing part is formed inside a main body formed to surround three sides in the longitudinal direction of the harness housing part and a lid body that covers the opening of the main body and is assembled to the main body. It is said.

  As described above, the harness housing portion is surrounded by the main body and the cover body in all four directions, so that the trunk line and the branch line are not directly affected by the temperature even if the temperature in the engine room becomes high. Therefore, the trunk line and the branch line can be prevented from being damaged by temperature.

Moreover, the harness protector according to the present invention, as described in claim 3,
The main body has a notch on the main body side for improving the flexibility of the arcuate portion.

  According to such a harness protector, the distance between the branch portions can be easily adjusted by the main body side notch, so that the position of the connector relative to the injector can be easily adjusted.

Moreover, the harness protector according to the present invention, as described in claim 4,
The lid is characterized by having a lid-side notch for improving the flexibility of the arched portion.

  According to such a harness protector, the distance between the branch portions can be easily adjusted by the lid-side cutout, so that the position of the connector relative to the injector can be easily adjusted. Of course, it is preferable to assemble the main body having a notch on the main body side, because the two notches facilitate flexibility.

Moreover, the harness protector according to the present invention, as described in claim 5,
The main body and the lid body have a connector connecting portion that can be in contact with and supported by the connector.

  According to such a harness protector, particularly when the connector is connected to the counterpart connector of the injector, the connector is brought into contact with and supported by the connector coupling portion, so that the swing of the connector is suppressed and damage to the branch line is prevented. be able to. Therefore, durability of the branch line can be guaranteed.

Moreover, as described in claim 6, the harness protector according to the present invention,
The main body and the lid have a locking mechanism for integrally connecting the main body and the lid.

  According to such a harness protector, since it has a tubular shape that defines the harness housing portion 11 inside by the main body and the lid body integrally coupled via the locking mechanism, dust, dust, water, The quality of the injector harness can be ensured by preventing the entry (intrusion) of foreign matters such as.

  According to the present invention, the length of the branch line branched from the trunk line is likely to vary, the connector of a different branch line may be coupled to the connector of a predetermined injector, and the branch line is damaged. This eliminates the possibility of receiving damage, reduces the influence of variations in the length of the branch line, allows easy and reliable connection of a predetermined branch line to a predetermined injector, and further damages the branch line. It is possible to provide a harness protector capable of preventing quality and improving quality.

  The present invention has been briefly described above. Furthermore, the details of the present invention will be further clarified by reading through the best mode for carrying out the invention described below with reference to the accompanying drawings.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of the invention will be described in detail with reference to the accompanying drawings.

  1 is an external perspective view showing an embodiment of a harness protector according to the present invention, FIG. 2 is a partially broken plan view of the harness protector shown in FIG. 1, and FIG. 3 is an external perspective view of a main body of the harness protector shown in FIG. 4 and FIG. 4 are external perspective views of a single lid body of the harness protector shown in FIG.

  As shown in FIGS. 1-4, the harness protector 10 which is one Embodiment of this invention was branched from the trunk line 41 by the trunk line 41 and the some branch part 42 by which the position on the trunk line 41 was predetermined, A harness protector for covering an injector harness 40 having a branch line 43 for supplying power to a predetermined injector of an engine and a connector 44 disposed at an end of the branch line 43. The trunk protector 41 and the branch line 43 are connected to each other. The harness housing part 11 is housed and connected to each branch part 42 in a continuous arch shape with the curved part interposed therebetween, and the connector 44 is disposed in the vicinity of the branch part 42.

  Further, the harness housing part 11 is arranged inside the main body 12 formed surrounding three sides in the longitudinal direction of the harness housing part 11 and the lid body 13 that covers the opening of the main body 12 and is assembled to the main body 12. Has been.

  Moreover, the main body 12 has a main body side notch 14 for improving the flexibility of the arched portion.

  The lid 13 has a lid-side notch 15 disposed corresponding to the main body-side notch 14 for improving the flexibility of the arch-shaped portion.

  Further, the main body 12 and the lid body 13 have a connector connecting portion 16 that can be in contact with and supported by the connector 44.

  Further, the main body 12 and the lid body 13 have a locking mechanism 17 for integrally coupling the main body 12 and the lid body 13.

  Details of the harness protector 10 configured as described above will be described below.

  The harness protector 10 has a main body 12 and a lid body 13 formed of a flexible and heat-resistant polymer material such as synthetic resin, rubber, or synthetic resin containing rubber. It is applied to an inline 4-cylinder or V-type 8-cylinder engine.

  The main body 12 is formed along the harness housing portion 11 so as to surround three sides in the longitudinal direction of the trunk line 41 (that is, the longitudinal direction of the harness housing portion 11) (in other words, a part of the harness housing portion 11 is formed). Three plan view arch-shaped main-body-side arch portions 18 made of a substantially U-shaped wall in cross-section and a branch line 43 (that is, a part of the harness housing portion 11 corresponding to the branch line 43). Each of the main body side arches formed of a substantially U-shaped cross-sectional wall formed along the harness housing portion 11 (in other words, to form a part of the harness housing portion 11). The four main body side bases 19 disposed at the end of the part 18 and the main body side base 19 disposed at one end of the main body 12 are integrally formed, and the trunk line 41 (that is, a part of the harness housing part 11). Hane so as to surround the three sides in the longitudinal direction (In other words, for forming a part of the harness receiving portion 11) accommodating portion 11 is formed along with the body-side main line insertion portion 20 consisting of the walls of the cross section substantially U-shaped, the integrally. Furthermore, the main body 12 has a main body side cutout 14 cut out along the arch shape at the lower part of the inner peripheral side center of the three main body side arch portions 18.

  The lid 13 has a substantially I shape in cross section, and includes three lid-side arch portions 21 for covering the openings of the main body-side arch portion 18 of the main body 12, and the openings of the main body-side base 19 of the main body 12. 4 cover body side base portions 22 for covering the cover body, and a cover body side trunk line insertion portion 23 for covering the opening of the main body side trunk line insertion portion 20 of the main body 12 are integrally provided. Further, the lid body 13 has a lid body side cutout 15 cut out in a triangular shape at the inner peripheral side center of the three lid body side arch portions 21.

  Here, the main body-side arch portion 18 and the lid-side arch portion 21 (that is, the harness housing portion 11) are, for example, V-shaped, W-shaped, or the like between the branch portions 42 instead of the curved portion. It is good also as what connects to the continuous arch shape on both sides of a part.

  The four connector connecting portions 16 are formed at the open end portions of the main body side base portions 19 and the lid body side base portions 22, and the four connectors 44 are assembled to the four connector connecting portions 16. Yes.

  The connector 44 includes a pair of terminals (not shown) housed therein, which are electrically connected to the branch lines 43 and are fitted and connected to an injector connector disposed in the injector (not shown). The terminals are electrically connected to a pair of terminals housed in a mating connector disposed in the injector, and the current supplied to the branch line 43 from an engine control unit (not shown) is applied to the injector to operate the injector. . In the injector, an electromagnetic valve disposed inside is connected to a pressurized fuel path, so that fuel is injected into an intake manifold (not shown).

  The connector connecting portion 16 supports the connector 44 so that it does not swing by abutting against the connector 44 when connected to the counterpart connector of the injector, so that the swing of the connector 44 is suppressed, thereby preventing the branch line 43 from being damaged. The Therefore, durability of the branch line 43 can be guaranteed.

  As shown in FIG. 2, the harness housing portion 11 is a space formed between the main body 12 and the lid body 13, and the trunk line 41 is inserted into the harness housing portion 11 from the opening portion of the main body 12. The harness housing portion 11 is defined by the main body 12 and the lid body 13 and is disposed so as to surround the entire circumference of the trunk line 41 and the branch line 43. Therefore, even if the inside of the engine room becomes hot, the trunk line 41 and Since the branch line 43 is not directly affected by the temperature, the trunk line 41 and the branch line 43 can be prevented from being damaged by the temperature.

  In the trunk line 41, branch portions 42 are formed in the harness accommodating portions 11 in the vicinity of the base portions 19 and 22, and branch lines 43 are branched at the branch portions 42. The branched branch line 43 is drawn out to a small length in each of the base portions 19 and 22 and is electrically connected to the terminal in the connector 44 assembled to the connector connecting portion 16. The trunk line 41 accommodated in the harness accommodating portion 11 is arched along the main body side arch portion 18 and the lid side arch portion 21 between the respective branch portions 42, and is connected to the connector 44 in the vicinity of the branch portion 42. Is placed. Therefore, the branch line 43 can be extremely shortened. Thereby, the influence of the variation in the length dimension of the branch line 43 can be reduced, and the connector 44 can be easily and reliably arranged at a predetermined position corresponding to a predetermined injector. Moreover, since the harness accommodating part 11 has connected between each branch part 42 with the arch-shaped curved part, the pitch shift of the connector 44 with respect to an injector can be absorbed, and also the injector is embed | buried under an intake manifold etc., for example. However, the trunk line 41 can be arranged without interfering with the intake manifold. Thus, since the harness protector 10 includes a stress absorbing portion such as an arch-shaped curved portion (or corner portion), even if the connector 44 has a slight pitch shift with respect to the injector, the harness absorbing portion 10 It is possible to easily assemble all the connectors 44 together into the injector while adjusting the position of each connector 44 by bending (that is, causing the stress absorbing portion to absorb stress). It is also possible to assemble the injectors one by one. Therefore, the harness protector 10 has very good workability when assembled to the injector.

  As shown in FIG. 3, the main body 12 includes a side portion of the main body side base portion 19, a side portion of the main body side main line insertion portion 20, and a central portion outer side of the main body side arch portion 18. Twelve engaging portions 24 are formed.

  As shown in FIG. 4, the lid body 13 includes a lid of the locking mechanism 17 on the side portion of the lid body side base portion 22, the side portion of the lid body side trunk insertion portion 23, and the central portion outer side of the lid body side arch portion 21. Twelve locking portions 25 constituting the body side are formed.

  Since the main body side notch 14 is cut along the arch shape at the lower part of the inner peripheral side central portion of the three main body side arch portions 18, the main body 12 is further flexed to the inner peripheral side of the main body side arch portion 18. Since the distance between the branch portions 42 can be easily adjusted, the position of the connector 44 can be easily adjusted with respect to the injector.

  In addition, since the lid-side notch 15 is also cut out in a triangular shape at the inner peripheral side central portion of the three lid-side arch portions 21, the lid 13 is flexed to the inner peripheral side of the lid-side arch portion 21. Since the distance between the branch portions 42 can be easily adjusted, the position of the connector 44 can be easily adjusted with respect to the injector.

  When the lid body 13 covers the main body 12 and closes the harness housing portion 11, the respective locking portions 25 of the lid body 13 are snapped into the respective engaging portions 24 of the main body 12 and locked. Therefore, the main body 12 and the lid body 13 can be assembled together. Since the main body 12 and the lid body 13 are integrally coupled via the locking mechanism 17, the main body 12 and the lid body 13 have a tubular shape that defines the harness housing portion 11 therein. The quality of the injector harness 40 can be assured by preventing entry (intrusion) of foreign matter such as dust or water.

  In such a harness protector 10, the trunk wire 41 having the branch wire 43 branched at the branch portion 42 and having the connector 44 attached to the end thereof is not attached to the harness housing portion 11 of the main body 12 in the state where the lid body 13 is not assembled. It is stored in. Then, when the lid body 13 is attached to the main body 12, each locking portion 25 of the lid body 13 is fitted and locked to each engaging portion 24 of the main body 12, so that the main body 12 and the lid body 13 are connected. Combined together. Thereby, the connector 44 is supported so that it can contact | abut to the connector connection part 16 in the open part of each base 19 and 22. FIG.

  The harness protector 10 is assembled on the intake manifold of the engine. Since the connector 44 is disposed on the branch line 43 of each of the base portions 19 and 22 so as to correspond only to a predetermined injector for each cylinder, the connector 44 can be reliably and easily attached to the predetermined injector connector.

  According to the harness protector 10 described above, the harness accommodating portion 11 that accommodates the trunk line 41 and the branch line 43 is arranged between the branch portions 42 so as to arrange the connectors 44 in the vicinity of the branch portions 42, respectively. Connect with.

  Therefore, the branch line 43 can be extremely shortened. Thereby, the influence of the variation of the length dimension of the branch line 43 can be reduced, and the connector 44 can be easily and reliably disposed at a predetermined position corresponding to the injector. Moreover, since the harness accommodating part 11 has the shape which connects between each branch part 42 by the arch-shaped curved part, the pitch shift of the connector 44 with respect to an injector can be absorbed, and also the injector is embed | buried under an intake manifold etc., for example. However, the trunk line 41 can be arranged without interfering with the intake manifold.

  Further, according to the harness protector 10 described above, the harness housing portion 11 is surrounded by the main body 12 and the lid body 13 that covers the opening portion of the main body 12 and is assembled to the main body 12. Even if the temperature in the room becomes high, the trunk line 41 and the branch line 43 are not directly affected by the temperature, so that the trunk line 41 and the branch line 43 are not damaged by the temperature. it can.

  Further, according to the harness protector 10 described above, the distance between the branch portions 42 (in other words, the distance between the main body side base portions 19 and the distance between the lid body side base portions 22) is changed to the main body side notch 14 and the lid. Since it can be adjusted more easily by at least one of the body-side notches 15, the position of the connector 44 can be easily adjusted with respect to the counterpart connector of the injector.

  Further, according to the harness protector 10 described above, since the connector 44 is abutted and supported by the connector coupling portion 16 particularly when connecting to the counterpart connector of the injector, the swing of the connector 44 is suppressed, and the branch line 43 can be prevented from being damaged. Therefore, durability of the branch line 43 can be guaranteed.

  Further, according to the harness protector 10 described above, since the main body 12 and the lid body 13 that are integrally coupled via the locking mechanism 17 have a tubular shape that defines the harness housing portion 11 therein, dust, The quality of the injector harness 40 can be assured by preventing entry (intrusion) of foreign matter such as dust or water.

  The present invention is not limited to the above-described embodiments, and modifications, improvements, etc. can be made as appropriate. In addition, the material, shape, dimension, form, number, arrangement location, and the like of each component in the above-described embodiment are arbitrary and are not limited as long as the present invention can be achieved.

  For example, the cross-sectional shape of the lid is not limited to a substantially I shape, and may be a substantially U shape that can be assembled to the main body. The wall thickness (plate thickness) of the main body and the lid is preferably thinner in consideration of flexibility.

  Moreover, since the shape of each notch is selected suitably, it is not limited to what was illustrated. A plurality of notches may be continuously arranged.

  As for the locking mechanism, a combination of a hook and a protrusion or a combination of a rod and a hole may be used instead of the illustrated locking portion and engaging portion.

1 is an external perspective view showing an embodiment of a harness protector according to the present invention. It is a partially broken top view of the harness protector shown in FIG. It is an external appearance perspective view of the main body single body of the harness protector shown in FIG. It is an external appearance perspective view of the lid body single body of the harness protector shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Harness protector 11 Harness accommodating part 12 Main body 13 Cover body 14 Main body side notch 15 Cover body side notch 16 Connector connection part 17 Locking mechanism 24 Engaging part (locking mechanism)
25 Locking part (locking mechanism)
41 trunk line 42 branch part 43 branch line 44 connector

Claims (6)

The main line,
A branch line for supplying power to a predetermined injector of the engine, branched from the main line at a plurality of branch portions whose positions are predetermined on the main line;
A connector disposed at an end of the branch line;
A harness protector for covering an injector harness having
A harness housing part that accommodates the trunk line and the branch line and connects the respective branch parts in a continuous arch shape with a curved part or a corner part interposed therebetween, and each of the connectors is disposed adjacent to the branch part Harness protector characterized by   The harness housing part is formed inside a main body formed to surround three sides in the longitudinal direction of the harness housing part and a lid body that covers the opening of the main body and is assembled to the main body. The harness protector according to claim 1.   The harness protector according to claim 2, wherein the main body has a notch on the main body side for improving the flexibility of the arched portion. The harness protector according to claim 2 or 3, wherein the lid has a notch on the lid side for improving flexibility of the arched portion.   The harness protector according to any one of claims 2 to 4, wherein the main body and the lid body have a connector connecting portion that can be in contact with and supported by the connector.   The harness protector according to any one of claims 2 to 5, wherein the main body and the lid body have a locking mechanism for integrally coupling the main body and the lid body.

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