JP6925845B2 - Extra length absorption structure of harness - Google Patents

Description

The present invention relates to an extra length absorbing structure of a harness, and more particularly to a structure that absorbs an extra length of a wire harness provided in a vehicle.

An example of this type of structure is disclosed in Patent Document 1. According to this document, the extra length absorption clamp includes a holding portion capable of absorbing extra length by holding the wire harness in a bent state, and a fixing portion capable of fixing the holding portion to a member to be fixed. Here, the holding portion is composed of a first member provided with the first regulating portion and a second member provided with the second regulating portion, and the first member and the second member change the relative positional relationship. Relative movement is possible between the first position and the second position. The first member and the second member move relative to each other by being hooked on the first regulating portion and the second regulating portion. As a result, the extra length of the wire harness can be easily absorbed.

Japanese Unexamined Patent Publication No. 2012-85414

However, the technique of Patent Document 1 in which the wire harness is stored in the holding portion has a problem that the size of the extra length absorption clamp increases with respect to the wire diameter of the wire harness.

Therefore, a main object of the present invention is to provide a harness extra length absorbing structure capable of absorbing the extra length of the harness with a small and simple configuration.

The extra length absorbing structure of the harness according to the present invention is a harness member that exhibits hardness in a predetermined length range near one end in the length direction and is soft in a range different from the predetermined length range, and slides in a predetermined length range. It has a fixing member movably attached to the harness member and a connector attached to one end in the length direction, and a clamp is attached to the other end side in the length direction of the harness member. When the members are arranged so as to face the same direction and the fixing member is arranged at a pull-out position away from the connector, the harness member indicating softness is arranged diagonally from the portion indicating hardness toward the clamp, and the fixing member is arranged. The harness member showing softness bends in the direction of the fixing member when it is arranged at the pushing position close to the connector .

By arranging the fixing member at a position away from the connector before connecting the connector, the connection work of the connector becomes easy. Further, after the connector connection work is completed, the fixing member is arranged at a position close to the connector and fixed to another member, so that the extra length of the harness member is absorbed. As a result, the extra length of the harness can be absorbed with a small and simple configuration.

The above-mentioned object, other object, feature and advantage of the present invention will be further clarified from the detailed description of the following examples made with reference to the drawings.

(A) is a perspective view showing an example of a wire harness constituting the extra length absorption structure of the harness, (B) is a perspective view showing an example of a hard tube constituting the extra length absorption structure of the harness, and (C). ) Is a perspective view showing an example of a corrugated tube constituting the extra length absorption structure of the harness, (D) is a perspective view showing an example of a clamp constituting the extra length absorption structure of the harness, and (E) is a perspective view showing an example of a clamp constituting the extra length absorption structure of the harness. It is a perspective view which shows an example of the connector which constitutes the extra length absorption structure of. It is a perspective view which shows an example of the harness member which consists of a wire harness and a hard tube. It is a perspective view which shows an example of the fixing member including a corrugated tube and a clamp. It is a perspective view which shows the extra length absorption structure of the harness which is in a pull-out state. It is a perspective view which shows the extra length absorption structure of the harness which is in a pushed state.

The extra length absorbing structure 10 of the harness according to this embodiment includes the wire harness 12 shown in FIG. 1 (A), the hard tube 14 shown in FIG. 1 (B), the corrugated tube 16 shown in FIG. 1 (C), and FIG. 1 (D). ) And the connector 20 shown in FIG. 1 (E).

The wire harness 12 is a soft member in which a plurality of electric wires used for power supply and signal communication are bundled to form an aggregate. The cross section of the wire harness 12 orthogonal to the length direction forms a perfect circle. The hard tube 14 is a tube made of polyvinyl chloride extending substantially linearly, its length is shorter than that of the wire harness 12, and its inner diameter is substantially the same as the outer diameter of the wire harness 12.

The harness member 30 shown in FIG. 2 is manufactured by inserting the wire harness 12 into the hard tube 14 and aligning one end of the wire harness 12 in the length direction with the vicinity of one end of the hard tube 14 in the length direction. At this time, the hard tube 14 is fixed to the wire harness 12. As a result, the predetermined length range near one end of the wire harness 12 in the length direction is covered with the hard tube 14.

The length of the corrugated tube 16 is much shorter than that of the hard tube 14, and the inner diameter of the corrugated tube 16 is slightly larger than the outer diameter of the hard tube 14. The clamp 18 includes a base 18bs. A locking member 18en is provided on the lower surface of the base 18bs, and a band 18b extending upward is provided on the upper surface of the base 18bs.

The base 18bs also has a through hole 18hl provided at a position corresponding to the base of the band 18bd and extending in the thickness direction of the band 18bd. Here, the width of the through hole 18hl substantially coincides with the width of the band 18db, and the height of the through hole 18hl substantially coincides with the thickness of the band 18db. In this embodiment, two clamps 18 are prepared.

In the fixing member 40 shown in FIG. 3, the band 18bd constituting one of the clamps 18 is wound around the outer circumference of the corrugated tube 16, the tip of the band 18bd is inserted into the through hole 18hl provided in the clamp 18, and the tip of the band 18bd is inserted. It is made by cutting with scissors.

With reference to FIGS. 4 and 5, the connector 20 is a member for connecting the wire harness 12 to the electric system of the vehicle, and is attached to one end of the harness member 30 in the length direction.

Further, the fixing member 40 is attached to the hard tube 14 so that the corrugated tube 16 constituting the fixing member 40 can slide with respect to the hard tube 14.

The other clamp 18 is attached to the other end of the harness member 30 in the length direction. At this time, the band 18bd is wound around the outer circumference of the other end of the wire harness 12 in the length direction and then inserted into the through hole 18hl. Further, the tip of the band 18bd protruding from the through hole 18hl is cut off with scissors or the like.

When the extra length absorption structure 10 configured in this way is attached to another member (not shown) such as an instrument panel core or a SW base, first, a clamp 18 attached to the other end in the length direction of the harness member 30 is attached. , Locked to another member by the locking member 18en. Subsequently, the fixing member 40 is arranged at a pull-out position away from the connector 20, and the connector 20 is connected to another connector (not shown). When the connection of the connector 20 is completed, the fixing member 40 is arranged at a pushing position close to the connector 20, and the clamp 18 constituting the fixing member 40 is locked to another member by the locking member 18en.

As can be seen from the above description, the harness member 30 composed of the wire harness 12 and the hard tube 14 is rigid in a predetermined length range near one end in the length direction and is soft in a range different from the predetermined length range. show. The fixing member 40 composed of the corrugated tube 16 and the clamp 18 is slidably attached to the harness member 30 within a predetermined length range of the harness member 30 at least. The connector 20 is attached to one end of the harness member 30 in the length direction.

By arranging the fixing member 40 at a pull-out position away from the connector 20 before connecting the connector 20, the connection work of the connector 20 becomes easy. Further, after the wiring work of the connector 20 is completed, the fixing member 40 is arranged at a pushing position close to the connector 20, and the clamp 18 constituting the fixing member 40 is locked to another member, whereby the harness member 30 is connected. The extra length is absorbed. As a result, the extra length of the harness member 30 can be absorbed with a small and simple configuration.

By absorbing the extra length in this way, it is possible to reduce the concern that the extra length bites into another part and that the extra length interferes with another part to generate an abnormal noise. Further, since the hard tube 14 extends substantially linearly, the fixing member 40 can be easily moved between the pull-out position and the push-in position.

10 ... Harness extra length absorption structure 12 ... Wire harness 14 ... Hard tube 16 ... Corrugated tube 18 ... Clamp 20 ... Connector 30 ... Harness member 40 ... Fixing member

Claims (1)

A harness member that is rigid in a predetermined length range near one end in the length direction and is soft in a range different from the predetermined length range.
It is provided with a fixing member slidably attached to the harness member within the predetermined length range, and a connector attached to one end in the length direction .
A clamp is attached to the other end side in the length direction of the harness member, and the fixing member and the clamp are arranged so that the harness member faces the same direction.
In a state where the fixing member is arranged at a pull-out position away from the connector, the soft harness member is arranged obliquely from the rigid portion toward the clamp.
An extra length absorbing structure of a harness in which the soft harness member bends in the direction of the fixing member when the fixing member is arranged at a pushing position close to the connector.

Images