WIRE HARNESS

There is provided a harness body that electrically connects a first electrical connection target installed in a slide door and a second electrical connection target installed in a vehicle body, in which when the slide door is at a fully open position with respect to the vehicle body, the harness body is routed on a side of a slide direction during an opening operation of the slide door with respect to a link mechanism that couples the slide door and the vehicle body and reciprocates the slide door in the slide direction with respect to the vehicle body.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a wire harness.

2. Description of the Related Art

Conventionally, a vehicle such as an automobile is mounted with a wire harness that electrically connects a power source (secondary battery or the like) on a side of a vehicle body, an electrical component, and the like to a switch on a side of a slide door, an electrical component, and the like. This type of wire harness is disclosed in, for example, Japanese Patent Application Laid-open No. 2021-19386 below.

SUMMARY OF THE INVENTION

In a wire harness for a slide door, since a harness body is routed between a vehicle body and a slide door, there is a possibility that the harness body is exposed when the slide door is at the fully open position. For this reason, in the wire harness, there is a demand for a measure for preventing an occupant, a load, or the like from touching an exposed portion of the harness body at the time of getting on and off.

Therefore, an object of the present invention is to provide a wire harness for a slide door capable of suppressing contact with a harness body at the time of getting on and off.

Solution to Problem

A wire harness according to one aspect of the present invention includes a harness body that electrically connects a first electrical connection target installed in a slide door and a second electrical connection target installed in a vehicle body, wherein when the slide door is at a fully open position with respect to the vehicle body, the harness body is routed on a side of a slide direction during an opening operation of the slide door with respect to a link mechanism that connects the slide door and the vehicle body and reciprocates the slide door in the slide direction with respect to the vehicle body.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Hereinafter, an embodiment of a wire harness according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited by the embodiment.

Embodiment

One embodiment of a wire harness according to the present invention will be described with reference toFIGS.1to6.

Reference numeral1inFIGS.1to6denotes a wire harness of the present embodiment.

For example, in a vehicle such as an automobile, there is a vehicle on which a slide door500(FIGS.1to6) capable of reciprocating in a slide direction with respect to a vehicle body B is mounted. The vehicle includes a link mechanism600that couples the slide door500and the vehicle body B and reciprocates the slide door500in the slide direction with respect to the vehicle body B in order to take charge of the sliding operation (reciprocating operation in the slide direction) of the slide door500(FIGS.1to6). The link mechanism600illustrated here slides the slide door500on a vehicle side in a vehicle front-rear direction.

The link mechanism600passes between the slide door500and the vehicle body B to displace the slide door500with respect to the vehicle body B between a fully open position and a fully closed position. The link mechanism600includes an arm member610, a first bearing620fixed to the slide door500and pivotally supporting one end portion611of the arm member610, and a second bearing630fixed to the vehicle body B and pivotally supporting the other end portion612of the arm member610(FIGS.1,2, and4to6). That is, the arm member610has a turning fulcrum (hereinafter, it is referred to as a “door-side turning fulcrum”) on the slide door500side in the link mechanism600at one end portion611, and has a turning fulcrum (hereinafter, it is referred to as a “vehicle body-side turning fulcrum”) on the vehicle body B side in the link mechanism600at the other end portion612.

The first bearing620includes a bracket621fixed to, for example, an inner panel501of the slide door500, and both ends of a rotating shaft622are rotatably and axially supported by the bracket621(FIGS.1,2, and4to6). The rotating shaft622is installed with an axial direction thereof aligned with a vehicle vertical direction. One end portion611of the arm member610is fixed to the rotating shaft622, and is pivotally supported rotatably around the axis of the rotating shaft622with respect to the bracket621via the rotating shaft622. The second bearing630includes a bracket631fixed to the vehicle body B, and both ends of the rotating shaft632are rotatably and axially supported by the bracket631(FIGS.1,2, and4to6). The other end portion612of the arm member610is fixed to the rotating shaft632, and is pivotally supported rotatably around the axis of the rotating shaft632with respect to the bracket631via the rotating shaft632. The bracket631is fixed to a fixing portion Ba protruding from the vehicle body B (FIGS.1,2, and4to6).

The link mechanism600reciprocates the slide door500in the slide direction with respect to the vehicle body B while rotating the arm member610at the door-side turning fulcrum of the one end portion611and the vehicle body-side turning fulcrum of the other end portion612by, for example, transmitting an output torque of a rotary machine (not illustrated) as a drive source to the rotating shaft632on a side of the vehicle body B. In the link mechanism600, for example, the arm member610is arranged in a state of extending in the slide direction (here, the vehicle front-rear direction) of the slide door500when the slide door500is at the fully closed position (FIGS.4to6), and the arm member610is arranged in a state of extending in an intersecting direction (for example, vehicle width direction) with respect to the slide direction of the slide door500when the slide door500is at the fully open position (FIGS.1to3).

A plurality of link mechanisms600are provided between the slide door500and the vehicle body B. The plurality of link mechanisms600are arranged at intervals in the vehicle vertical direction. Here, as the link mechanism600, an upper link mechanism600A on the vehicle upper side and a lower link mechanism600B on the vehicle lower side are provided (FIGS.1to6). Here, when the slide door500is at the fully open position with respect to the vehicle body B, the lower link mechanism600B is disposed in front of the vehicle with respect to the upper link mechanism600A (FIGS.1to3). The upper link mechanism600A includes two arm members610A, a first bearing620A (bracket621) that pivotally supports one end portion611of each of the two arm members610A via one rotating shaft622, and a second bearing630A (bracket631) that pivotally supports the other end portion612of each of the two arm members610A via one rotating shaft632(FIGS.1,2, and4to6). The lower link mechanism600B includes one arm member610B, a first bearing620B (bracket621) that pivotally supports the one end portion611of the arm member610B via the rotating shaft622, and a second bearing630B (bracket631) that pivotally supports the other end portion612of the arm member610B via the rotating shaft632(FIGS.1,2, and4to6). The drive source is connected to any one of the upper link mechanism600A and the lower link mechanism600B.

The wire harness1of the present embodiment is mounted on the vehicle in order to electrically connect the first electrical connection target550installed in the slide door500and the second electrical connection target560installed in the vehicle body B (FIG.1).

The first electrical connection target550is installed in the slide door500such as an electrical component or a switch. For example, the electrical components of the slide door500indicate a drive device that drives a power window, a speaker, and the like. The switch of the slide door500indicates a switch for operating a power window, a switch for operating a power seat, and the like. Meanwhile, the second electrical connection target560is installed on the side of the vehicle body B such as a power source (secondary battery or the like) or an electrical component. For example, the electrical component on the side of the vehicle body B indicates an acoustic device related to a speaker of the slide door500, a drive device for driving a power seat, and the like.

The wire harness1includes a harness body10as a wiring component that electrically connects the first electrical connection target550and the second electrical connection target560(FIGS.1to6). The harness body10may be formed of only an electric wire bundle obtained by bundling a plurality of electric wires, the entire electric wire bundle may be covered with an exterior component such as a corrugated tube, or the electric wire bundle may be partially covered with one or a plurality of exterior components.

In the wire harness1, one terminal10aof the harness body10is electrically connected to the first electrical connection target550directly or indirectly, and the other terminal10bof the harness body10is electrically connected to the second electrical connection target560directly or indirectly (FIG.1). The wire harness1illustrated here includes a first connector21that is assembled to one terminal10aof the harness body10and electrically connects the harness body10to the first electrical connection target550directly or indirectly, and a second connector22that is assembled to the other terminal10bof the harness body10and electrically connects the harness body10to the second electrical connection target560directly or indirectly (FIGS.1to6).

The harness body10is routed between two adjacent link mechanisms600in the vehicle vertical direction (here, between the upper link mechanism600A and the lower link mechanism600B) among the plurality of link mechanisms in order to suppress contact of an occupant, cargo, and the like at the time of getting on and off (FIGS.1to6).

Furthermore, the harness body10is routed on the side of the slide direction (hereinafter, the direction is referred to as an “opening slide direction”) at the time of the opening operation of the slide door500with respect to the link mechanism600when the slide door500is at the fully open position with respect to the vehicle body B so that an occupant, cargo, and the like are not touched at the time of getting on and off (FIGS.1to3). That is, in the wire harness1, when the slide door500is at the fully open position with respect to the vehicle body B, the harness body10is present at the back of the link mechanism600as viewed from the occupant, the cargo, and the like at the time of getting on and off. As a result, in the wire harness1, when the slide door500is at the fully open position with respect to the vehicle body B, the contact of the occupant and the cargo with the link mechanism600at the time of getting on and off is suppressed, and the occupant and the cargo hardly come into contact with the harness body10existing at the back of the link mechanism600.

For example, in the wire harness1illustrated here, both ends of the harness body10are arranged at the next positions when the slide door500is at the fully open position, so that the harness body10is routed on the side of the opening slide direction with respect to the link mechanism600when the slide door500is at the fully open position with respect to the vehicle body.

First, when the slide door500is at the fully closed position with respect to the vehicle body B, the terminal10aon the side of the first electrical connection target550in the harness body10is assembled to the side of the slide door500at the same position as the coupling portion {here, the bracket621(the first bearing620) and the rotating shaft622} on the side of the slide door500in the link mechanism600in the slide direction or on side of the opening slide direction side with respect to the coupling portion on the side of the slide door500(FIGS.4to6). That is, in the harness body10, when the slide door500is at the fully closed position, the first connector21is connected to the side of the first electrical connection target550at the same position as the coupling portion {the bracket621(the first bearing620) and the rotating shaft622} on the side of the slide door500in the link mechanism600or on the side of the opening slide direction with respect to the coupling portion on the side of the slide door500.

Further, when the slide door500is at the fully closed position with respect to the vehicle body B, the terminal10bof the harness body10on the side of the second electrical connection target560is assembled to the side of the vehicle body B at the same position as the coupling portion {here, the bracket631(second bearing630) and the rotating shaft632} on the side of the vehicle body B in the link mechanism600in the slide direction or on the side of the opening slide direction with respect to the coupling portion on the side of the vehicle body B (FIGS.4to6). That is, in the harness body10, when the slide door500is at the fully closed position, the second connector22is connected to the side of the second electrical connection target560at the same position as the coupling portion {the bracket631(the second bearing630) and the rotating shaft632} on the side of the vehicle body B in the link mechanism600or on the side of the opening slide direction with respect to the coupling portion on the side of the vehicle body B.

The harness body10is routed on the side of the opening slide direction with respect to the link mechanism600when the slide door500is at the fully open position by the arrangement of the terminals10aand10bon the side of the first electrical connection target550and the side of the second electrical connection target560when the slide door500is at the fully closed position. However, since the slack of the harness body10increases depending on the path length when the slide door500is at the fully open position, there is a possibility that the harness body protrudes toward the side of the slide direction (hereinafter, the direction is referred to as a “closing slide direction”) during the closing operation of the slide door500with respect to the link mechanism600when the slide door500is at the fully open position.

In order to suppress such protrusion, in addition to the arrangement of the respective terminals10aand10bdescribed above, for example, when the slide door500is at the fully open position with respect to the vehicle body B, the harness body10is routed on the side of the opening slide direction with respect to the link mechanism600(here, the lower link mechanism600B) arranged on the most front side of the vehicle among the plurality of link mechanisms600arranged at intervals in the vehicle vertical direction (FIG.2). Accordingly, in the wire harness1, when the slide door500is at the fully open position, it is possible to suppress the protrusion of the harness body10toward the side of the closing slide direction with respect to the link mechanism600(lower link mechanism600B). Here, in order to enhance the effect of suppressing the protrusion, when the slide door500is at the fully open position with respect to the vehicle body B, the harness body10is routed on the side of the opening slide direction with respect to the link mechanism600(here, the upper link mechanism600A) arranged on the side of the opening slide direction with respect to the link mechanism600arranged on the most front side of the vehicle among the plurality of link mechanisms600arranged at intervals in the vehicle vertical direction.

Furthermore, in order to suppress the protrusion, in addition to the arrangement of the terminals10aand10bdescribed above, for example, when the slide door500is at the fully closed position with respect to the vehicle body B, the harness body10is routed immediately above or below the link mechanism600or closer to the slide door500than the link mechanism600(FIG.5). Accordingly, in the wire harness1, when the slide door500is at the fully open position, it is possible to suppress the protrusion of the harness body10toward the side of the closing slide direction with respect to the link mechanism600(lower link mechanism600B).

As described above, in the wire harness1of the present embodiment, when the slide door500is at the fully open position, the harness body10is routed at the back of the link mechanism600as viewed from the occupant, the cargo, and the like at the time of getting on and off, and thus, it is possible to suppress the contact of the occupant and the cargo with the harness body10at the time of getting on and off. Therefore, the wire harness1can enhance the protection function of the harness body10, and the durability thereof can be improved.

Here, when the slide door500is at the fully closed position, the lower link mechanism600B is disposed above the side sill of the vehicle body B and in a space between the slide door500and the floor panel of the vehicle body B or between the slide door500and the seat. Therefore, in the wire harness1, by arranging the harness body10in the space when the slide door500is at the fully closed position, it is possible to suppress the contact of the occupant and the cargo with the harness body10at this time. For example, as described above, the harness body10is routed between the upper link mechanism600A and the lower link mechanism600B. Therefore, it is desirable that the harness body10is routed to the space above the side sill toward the side of the lower link mechanism600B.

In the wire harness according to the present embodiment, when the slide door is at the fully open position, the harness body is routed behind the link mechanism as viewed from an occupant, a cargo, or the like at the time of getting on and off the vehicle, and thus, it is possible to suppress the contact of the occupant or the cargo with the harness body at the time of getting on and off. Therefore, the wire harness can enhance a protection function of the harness body, and durability thereof can be improved.