DE102013110768B4 - Cable support structure for vehicle seat - Google Patents

Abstract

Cable holding structure for a vehicle seat, wherein cables (30) are passed through a backrest (3) and through a seat cushion (2), the cables (30) being passed through an interior of a cover (11) covering a movement mechanism unit (20) of the seat, the cable holding structure comprising: a holding unit (27) designed to hold the cables (30), the holding unit (27) being installed inside the cover (11); andan engaging portion (51) adapted to be engaged with an engaged portion (50) installed on a frame side of the seat, the engaging portion (51) being installed on a holding wall (52) of the holding unit (27),wherein the engaging portion (51) includes an engaging claw protruding from an outer surface (52M) of the holding wall (52),wherein the holding wall (52) protrudes from a rear side of the cover (1 1) protrudes;the engaged portion (50) is installed at an end portion of an engaged piece (13J) on the frame side; andan end face (13J1) at which one end portion of said engaged part (13J) is disposed in the vicinity of an outer surface on a root side of said holding wall (52) and opposed thereto.

Description

[Technical Field]

The present invention relates to a wire holding structure for a vehicle seat, in which wires are passed through a seat back and a seat cushion of the vehicle seat.

[Technological Background]

Conventionally, on an outer surface of a cover covering a reclining mechanism of a seat, a holding unit configured to hold cables having a hook shape is installed (see Patent Document 1). In addition, a cover bracket is installed on a frame side of the seat separately from the support unit. The cover is attached to the frame side of the seat using clamps and self tapping screws.

[State of the art]

[patent document]

The state of the art is on the DE 40 03 143 C2 and the JP S63140243 U pointed out.

[Summary of the Invention]

[Problems to be Solved by the Invention]

In the conventional structure, since the cable holding unit forming the shape of a hook is installed on the outer surface of the cover, the cable could e.g. B. detach from the holding unit when the cover is deformed.

In addition, since the cable holder on the frame side of the seat is installed separately from the support unit, the cables must be supported by the cover holder unit during assembly before the cover holder is installed on the frame side of the seat. Consequently, this increases assembly man-hours.

In addition, since the cover is attached to the frame side of the seat using clamps and self-tapping screws, the number of parts is increased.

An object of the present invention is to provide a wire holding structure for a vehicle seat that can reliably hold wires in a holding unit, prevent wires from coming off the holding unit, reduce assembly man-hours, and reduce the number of parts.

[Means for solving the problems]

In accordance with a feature of the present invention, there is provided a cable holding structure for cables routed through a backrest and a seat cushion, the cables being routed through an inside of a cover covering a movement mechanism unit of the seat, the cable holding structure comprising : a holding unit configured to hold the cables, the holding unit being installed inside the cover; and an engaging portion configured to be engaged with an engaged portion installed on a frame side of the seat, the engaging portion being installed on a support wall of the support unit.

In this configuration, since the cables are routed through the inside of the cover covering the moving mechanism unit of the seat and held by the holding unit built inside the cover, the cables can be protected by the cover and can be reliably prevented from coming off loosen the holding unit.

In addition, since the engaging portion designed to be engaged with the engaging portion installed on the frame side of the seat is installed on the holding wall of the holding unit, the cables can be held at a place where the fastening strength of the cover at the frame side of the seat is high. Consequently, the cables can be held by the holding unit and can be prevented from being detached from the holding unit more reliably.

Moreover, since the engaging portion on the cover is engaged with the engaged portion on the frame side of the seat, there is no need to use other fasteners such as clamps to fix the cover on the frame side. This makes it possible to reduce the number of parts, save space in the cover, and downsize the cover.

In addition, the cover can be assembled on the frame side with the cables held by the cover holding unit, and assembly man-hours can be reduced.

In the present invention, if the engaging portion includes an engaging claw protruding from the outer surface of the retaining wall, the following effects can be obtained.

Since the engaging portion includes an engaging claw protruding from the outer surface (a surface of the holding unit facing the holding space) of the holding wall, the holding wall deforms in that direction (toward the holding space) to hold the cables if the engaging claw tends to to disengage from the engaged portion on the frame side of the seat. Thus, the retaining wall receives a reaction force from the cables, thereby preventing the engaging claw from disengaging from the retaining unit.

In addition, since the engaging claw is fixed when the cover is fixed to the frame side of the seat with the engaging claw engaged with the engaged portion, the cables can be further held while the cover is fixed to the frame side.

In the present invention, the retaining wall protrudes from a back side of the cover; the engaged portion is installed at an end portion of the engaged piece on the frame side; and an end face at the one end portion of the engaged part is disposed in the vicinity of and opposite to an outer surface on a root side of the retaining wall. Thereby, the following effects are obtained.

When a force is applied to the cables outwardly from the outer surface of the retaining wall, a foot of the retaining wall is deflected by the face. the one end portion of the engaged part, preventing movement of the retaining wall. Consequently, the cables are made less prone to becoming detached from the holding unit. In addition, movement of the cables outwardly from the outer surface of the retaining wall can be restricted.

In the present invention, the cover includes a top wall and a side wall extending downward from one side of the top wall; the support wall protrudes downward from a rear side of the top wall and the cables are routed between the support wall and the side wall; and a reinforcing rib is constructed between the side wall and an end portion of the holding wall in a passing direction of the cables. Thereby, the following effects are obtained.

The retaining wall can be reinforced by the reinforcing rib. As a result, even if the retaining wall is structured to have a long length of protrusion from the back of the top wall to the bottom, pressing failure can be avoided and the formability of the retaining wall can be improved. In addition, since the retaining wall is reinforced, the cables can be made less prone to detaching from the retaining unit.

In the present invention, a lower end portion of the holding wall is convex toward the side wall; and the bent lower end portion of the retaining wall is configured to catch the cables from below. This achieves the following effect.

Since the bent lower end portion of the holding wall catches the cables from below, the cables can be prevented from being detached from the holding unit and can be held by the holding unit more reliably.

In the present invention, a cable through hole is formed in the cover. This achieves the following effect.

If the cables are held by the holding unit after passing through the cable through hole, misattachment of the cover during an assembling operation can be avoided.

[Advantageous Effects of the Invention]

In accordance with the present invention, the structure for holding wires for a vehicle seat, which can reliably hold wires by a holding unit, prevents wires from being detached from the holding unit, reduces assembly man-hours, and reduces the number of parts.

character list

• 1 12 is a perspective view of a vehicle seat (a rear seat).
• 2(a) 13 is an enlarged perspective view of part B in FIG 1 , while 2 B) a sectional view along the line CC in 2(a) is.
• 3 12 is an exploded perspective view of a wire holding structure for a vehicle seat.
• 4 Fig. 14 is a perspective view of an inverted holding unit.
• 5 is a sectional view corresponding to section CC in 2(a) corresponds, showing a first alternative embodiment.
• 6 is a sectional view corresponding to section CC in 2(a) 1 corresponding to FIG. 1 showing a second alternative embodiment.

[Mode of Carrying Out the Invention]

Embodiments of the present invention are described below with reference to the drawings.

In 1 a rear seat 1 (corresponding to a vehicle seat) of an automobile is shown. The rear seat bench 1 includes a seat cushion 2 designed to support an occupant's buttocks and thighs region and a backrest 3 designed to support the occupant's back. Also coupled to an upper end portion of the seat back 3 is a headrest 4 configured to support the occupant's head. As also in 2(a) and 2 B) As shown, a cable 30 is routed through the backrest 3 and through the seat cushion 2 .

As in 2(a) , 2 B) and 3 1, a reclining mechanism 20 (corresponding to a movement mechanism unit) is installed between a rear end portion of the seat cushion 2 and a lower end portion of the backrest 3, the backrest 3 being configured to be pivotable about a hinge axis O along a width direction of the seat.

[Structure of Adjusting Mechanism Foot Holder 13]

As in 3 1, the recliner mechanism 20 is attached to a frame 21 (corresponding to a seat frame; cf 2 B) ) of the seat cushion 2 is attached. An upper half of a holder body 13A of the adjusting mechanism foot holder 13 is formed into a wide L-shaped side plate. The upper half of the holder body 13A is inclined backward so that its upper portion is positioned further on a rear side Rr of the seat than the lower portion.

At a front Fr of the seat, a flange-shaped holder front wall 13M projects from an end portion of the upper half of the holder body 13A toward an inner side W1 in the width direction of the seat, while a holder rear wall 13K projects from an end portion on the rear Rr of the seat in the direction of the width of the seat the inside W1 protrudes. The upper half of the holder body 13A is pivotally attached to the adjustment mechanism 20 about the hinge axis O. As shown in FIG.

Also, from an upper end portion of a lower half of the holder body 13A, a flange-shaped holder top wall 13J (corresponding to an engaged part) protrudes toward the inside W1 in the width direction of the seat. The holder top wall 13J and the holder front wall 13M are connected smoothly (see 3 ). The lower half of the holder body 13A is fixed to the frame 21 of the seat cushion 2 (see FIG 2 B) ).

[Structure of the adjustment mechanism cover 10]

As in 3 As shown, the recliner mechanism 20 is covered with a recliner mechanism cover 10 along with a recliner mechanism foot holder 13 . The reclining mechanism cover 10 includes a reclining mechanism outer cover 12 on the outside W2 in the seat width direction, and a reclining mechanism inner cover 11 on the inside W1 in the seat width direction.

[Structure of Adjustment Mechanism Outer Cover 12]

The adjustment mechanism outer cover 12 has a shape corresponding to that of the adjustment mechanism foot holder 13 . That is, an upper half of a reclining mechanism outer cover body 12A is formed into a wide L-shaped side plate. The upper half of the reclining mechanism outer cover body 12A is inclined rearward in such a manner that its upper portion is positioned further toward the rear Rr of the seat than the lower portion.

An edge of the upper half of the adjusting mechanism outer cover body 12A is formed in the shape of an arc. From an end portion of the upper half of the reclining mechanism outer cover body 12A on the front side Fr of the seat, a flange-shaped reclining mechanism outer cover front wall 12M in the width direction of the seat protrudes toward the inner side W1, while a reclining mechanism outer cover rear wall 12K protrudes from an end portion on the Rear Rr of the seat protrudes outward toward the inside W1 in the width direction of the seat. Moreover, a flange-shaped first reclining mechanism outer cover top wall 12J1 protrudes from an upper end portion of the upper half of the reclining mechanism outer cover body 12A in the seat width direction toward the inside W1.

In addition, a flange-shaped second reclining mechanism outer cover top wall 12J2 protrudes from an upper end portion of a lower half of the reclining mechanism outer cover body 12A in the seat width direction toward the inside W1. Adjacent ones of the second adjustment mechanism outer cover top panel 12J2, the adjustment mechanism outer cover front panel 12M, the adjustment mechanism Mechanism outer cover top panel 12J1 and the adjusting mechanism outer cover rear panel 12K are connected smoothly.

In the lower half of the adjusting mechanism outer cover body 12A, there is formed an engaging projection 40 configured to protrude toward the inside W1 in the seat width direction.

[Structure of Adjustment Mechanism Inner Cover 11]

As in 2 B) and 3 As shown, the reclining mechanism inner cover 11 includes a reclining mechanism inner cover top wall 11J extending in a front-rear direction of the seat and a reclining mechanism inner cover side wall 11S extending from one side of the reclining mechanism inner cover top wall 11J on the inner side W1 in the width direction of the seat. In addition, a flange 11F extends downward from an end portion of the reclining mechanism inner cover top wall 11J on the outside W2 in the width direction of the seat.

A rear half of the adjusting mechanism inner cover side wall 11S is set to have a longer height dimension than a front half, and a front half and a rear half of the adjusting mechanism inner cover top wall 11J are smoothly connected. In a corner portion formed by the rear half of the adjusting mechanism inner cover top wall 11J and the rear half of the adjusting mechanism inner cover side wall 11S (see FIG 3 ), a cable through-hole 11H (corresponding to a multi-cable through-hole) designed to pass the cable 30 through is formed.

The recliner-mechanism outer cover 12 is attached to the recliner-mechanism foot holder 13 via the engaging projection 40, covering the recliner-mechanism foot holder 13 from the outside W2 in the seat width direction and from above. In addition, the reclining mechanism inner cover 11 is attached to the reclining mechanism foot holder 13, covering the reclining mechanism foot holder 13 from the inside W1 in the side direction of the seat and from above. An attachment structure for this will be described later.

As in 2 B) 1, an end portion of the second reclining mechanism outer cover top panel 12J2 on the inside W1 in the seat width direction and the end portion of the reclining mechanism inner cover top panel 11J on the outside W2 in the seat width direction abut against each other. A lower end portion of the flange 11F of the adjusting mechanism inner cover top wall 11J abuts against the holder top wall 13J from above.

A supporting structure for the cable 30 (a multi-cable supporting structure for a vehicle seat) will be described below.

[Cable support structure 30]

As in 2 B) As shown, a holding unit 27 configured to hold the cable 30 is installed inside the adjustment mechanism inner cover 11 . The holding unit 27 includes a holding wall 52 protruding downward from a rear side of the adjusting mechanism inner cover top wall 11J with the adjusting mechanism inner cover side wall 11S facing the holding wall 52 .

A lower end portion 53 of the holding wall 52 is convexly bent toward the adjusting mechanism inner cover side wall 11S forming a substantially V-shape, and is substantially at the same level in the up-down direction as a lower end portion of the Adjuster mechanism inner cover side wall 11S located. The cable 30 is routed between the holding wall 52 and the adjusting mechanism inner cover side wall 11S, and is caught by the bent lower end portion 53 of the holding wall 52 from below. That is, a holding space S of the holding unit 27 is formed by the holding wall 52, the adjusting mechanism inner cover side wall 11S, and the bent lower end portion 53 of the holding wall 52. As shown in FIG.

Since the bent lower end portion 53 of the holding wall 52 catches the cable 30 from below, the cable 30 can be prevented from being detached from the holding unit 27 and the cable 30 can be allowed to be held by the holding unit 27 more reliably.

The cable 30 is passed through the cable through hole 11H of the adjustment mechanism inner cover 11 , guided inside the adjustment mechanism inner cover 11 , and guided into the holding unit 27 and held therein. Since the cable 30 is held in the holding unit 27 after being passed through the cable through hole 11H, incorrect attachment of the cover during an assembling operation can be avoided.

Around the cable 30 through the holding space S between the holding wall 52 and the adjustment mechanism mus inner cover side wall 11S, the cable 30 is routed under the holding space S along the front-rear direction of the seat. In this state, the cable 30 is moved up. The cable 30, which is passed through a strip 53A under the curved lower end portion 53 of the retaining wall 52 (where the strip 43A is increasingly inclined towards the outside W2 in the width direction of the seat, while the strip 43A runs downward), is thereby in is inserted into the holding space S so that the strip 53A and the adjusting mechanism inner cover side wall 11S are pushed apart against an elastic force. Consequently, the cable 30 is passed through the holding space S. Since the cable 30 is passed through the holding space S in this way, the operation of guiding the cable 30 can be easily performed.

As in 2 B) and 4 1, an engaged portion 50 is installed at an end portion of the retainer top wall 13J on the inside W1 in the seat width direction, and an engaging claw 51 (corresponding to an engaging portion) protrudes from an outer surface 52M of the retaining wall 52 of the retaining unit 27 is designed to be engaged with the engaged portion 50. Numeral 52N designates an inner surface of the retaining wall 52. A length of the engaging claw 51 in the front-rear direction of the seat is set so as to extend over an entire width of the retaining wall 52. FIG. This stabilizes an engaged state of the engaging claw 51 with the engaged portion 50.

With the outer surface 52M approaching from the outside W2 in the width direction of the seat, an end face 13J1 at an end portion of the holder top wall 13J faces the outer surface 52M of the holder wall 52 on the root side of the engaging claw 51 .

Consequently, when an outward force from the outer surface 52M of the retaining wall 52 is applied to the cable 30, the foot of the retaining wall 52 is caught by the end face 13J1 at an end portion of the retaining wall 13J, preventing the retaining wall 52 from moving. As a result, the cable 30 is made less prone to detaching from the holding unit 27. In addition, movement of the cable 30 outwardly from the outer surface 52M of the retaining wall 52 may be restricted.

As in 4 1, a reinforcing rib 60 having a triangular shape is installed between the adjusting mechanism inner cover side wall 11S and an end portion of the support wall 52 in a passing direction of the cable 30 and on the front side Fr of the seat.

Consequently, the retaining wall 52 can be reinforced by the reinforcing rib 60 . Thus, even if the holding wall 52 is structured to have a long length of protrusion from the rear of the adjusting mechanism inner cover top wall 11J to a top, pressing failure can be avoided and formability of the holding wall 52 can be improved. In addition, the cable 30 can be made less prone to coming off the holding unit 27 while the holding wall 52 is reinforced.

• (1) Da das Kabel 30 durch das Innere der Verstellmechanismus-Innenabdeckung 11 geführt ist und durch die in die Verstellmechanismus-Innenabdeckung 11 eingebaute Halteeinheit 27 gehalten ist, kann das Kabel 30 durch die Verstellmechanismus-Innenabdeckung 11 geschützt werden, was es weniger anfällt dafür macht, sich während der Montage von der Halteeinheit 27 zu lösen, und kann verhindert werden, dass es falsch angebracht wird.

With the configuration of the present invention, the following can be achieved:

• (1) Since the cable 30 is passed through the inside of the recliner mechanism inner cover 11 and held by the holding unit 27 built into the recliner mechanism inner cover 11, the cable 30 can be protected by the recliner mechanism inner cover 11, reducing the need for it makes it come off from the holding unit 27 during assembling, and can be prevented from being wrongly attached.

In addition, since the holding wall 52 of the holding unit 27 is installed with the engaging claw 51 designed to be engaged with the engaged portion 50, the cable 30 can be held at a place where the fastening strength of the adjusting mechanism inner cover 11 on the adjustment mechanism foot holder 13 is high. Consequently, the cable 30 can be held by the holding unit 27 and can be prevented from being detached from the holding unit 27 more reliably.

Furthermore, since the engaging claw 51 is engaged with the engaged portion 50 , there is no need to use other fasteners such as clamps to fasten the adjusting mechanism inner cover 11 to the adjusting mechanism foot holder 13 . This makes it possible to reduce the number of parts, save space in the adjustment mechanism inner cover 11 , and downsize the adjustment mechanism inner cover 11 .

• (2) Wenn die Eingriffsklaue 51 dazu neigt, sich von dem in Eingriff befindlichen Abschnitt 50 zu lösen, verformt sich die Haltewand 52 in einer Richtung (in Richtung des Halteraums S), in der das Kabel 30 festgehalten wird. Somit nimmt die Haltewand 52 eine Reaktionskraft von dem Kabel 30 auf und verhindert dadurch, dass sich die Eingriffsklaue 51 von dem in Eingriff befindlichen Abschnitt 50 löst.

Furthermore, the reclining mechanism inner cover 11 can be assembled to the reclining mechanism foot holder 13 with the cable 30 held by the holding unit 27 of the reclining mechanism inner cover 11, and assembly man-hours can be reduced.

• (2) When the engagement claw 51 tends to disengage from the engaged portion 50, the holding wall 52 deforms in a direction (toward the holding space S) in which the cable 30 is held. Thus, the retaining wall 52 receives a reaction force from the cable 30 and thereby prevents the engaging claw 51 from disengaging from the engaged portion 50 .

In addition, since the engaging claw 51 is fixed when the holder inner cover 11 is fixed to the adjusting mechanism foot holder 13 with the engaging claw 51 engaged with the engaged portion 50, the cable 30 can be further held while the adjusting mechanism foot holder 13 is Inner cover 11 is attached to the adjustment mechanism foot holder 13.

[Alternative Embodiments]

• (1) In addition to the cable 30, the present invention is also applicable to ropes, commonly referred to as cables.
• (2) As in 5 As shown, the upper end portion of the retaining wall 52 may be separated from the adjusting mechanism inner cover top wall 11J, and the upper end portion 53 of the retaining wall 52 may be fixed to the adjusting mechanism inner cover side wall 11S. The lower end portion 53 of the holding wall 52 bends toward the adjusting mechanism inner cover side wall 11S into an L-shape, and catches the cable 30 through the L-shaped lower end portion.
• (3) As in 6 As shown, the holding unit 27 may be formed in a box shape. The lower end portion 53 of the holding wall 52 bends toward the adjusting mechanism inner cover side wall 11S into an L-shape, and catches the cable 30 through the L-shaped lower end portion.

Consequently, the cable 30 does not come off the holding unit 27. Also, a strength of the engaging claw 51 is increased, making the engaging claw 51 less likely to come off the engaged portion 50.

Reference List

2

seat cushion

3

backrest

11

Cover (adjustment mechanism inner cover)

11H

cable through hole (multi cable through hole)

11y

Top Panel (Adjustment Mechanism Inner Cover Top Panel)

11S

Side Wall (Adjustment Mechanism Inner Cover Side Wall)

13y

engaged part (holder top wall)

13J1

Face at an end portion of the engaged part

20

Movement Mechanism Unit (Adjustment Mechanism)

21

Seat frame (seat cushion frame)

27

holding unit

30

multiple cables (one cable)

50

engaged section

51

engagement claw (engagement portion)

52

retaining wall

52M

outer surface of the retaining wall

53

lower end portion of the retaining wall

60

reinforcing rib

Claims (4)

Cable holding structure for a vehicle seat, wherein cables (30) are led through a backrest (3) and through a seat cushion (2), wherein the cables (30) are routed through an inside of a cover (11) covering a movement mechanism unit (20) of the seat, the cable support structure includes: a holding unit (27) adapted to hold the cables (30), the holding unit (27) being installed within the cover (11); and an engaging portion (51) adapted to be engaged with an engaged portion (50) installed on a frame side of the seat, the engaging portion (51) being fixed to a holding wall (52) of the holding unit ( 27) is installed, wherein the engaging portion (51) includes an engaging claw protruding from an outer surface (52M) of the retaining wall (52), the retaining wall (52) protruding from a rear side of the cover (11); the engaged portion (50) is installed at an end portion of an engaged piece (13J) on the frame side; and an end face (13J1) at which one end portion of the engaged part (13J) is located near and opposite to an outer surface on a base side of the holding wall (52). Cable support structure for a vehicle seat claim 1 , wherein: the cover (11) has a top wall (11J) and a side wall (11S) extending downward from one side of the top wall (11J); the support wall (52) protrudes downward from a rear side of the top wall (11J), and the cables (30) are routed between the support wall (52) and the side wall (11S); and a reinforcing rib (60) is constructed between the side wall (11S) and an end portion of the holding wall (52) in a passing direction of the cables (30). Cable support structure for a vehicle seat claim 2 wherein: a lower end portion (53) of the holding wall (52) is convexly bent toward the side wall (11S); and the bent lower end portion (53) of the retaining wall (52) is configured to catch the cables (30) from below. Cable support structure for a vehicle seat according to any one of Claims 1 until 3 wherein a cable through hole (11H) is formed in the cover (11).

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