KR101963148B1 - Locking device of sinking seat for vehicle - Google Patents

Abstract

The present invention relates to a locking apparatus for a sinking seat for a vehicle, wherein the sinking seat is formed to be folded and put into a storage space placed on a floor of the vehicle body, aiming to fixate a folded status between a circling link, which circles around a fixed shaft on a lower end inside the storage space, and a cushion frame, whose rear end unit is rotatably engaged with a circling shaft on an upper end of the circling link. According to the present invention, the locking apparatus for the sinking seat for the vehicle comprises: a can relatively fixated on an upper end unit of the circling link to rotate around the circling shaft; a stopping lever rotatably engaged with a lever shaft of the cushion frame, which has a stopping unit which slides and comes in contact with the outer circumferential surface of the cam or hangs on a hanging unit in accordance with the relative rotation of the circling link and the cushion frame around the circling shaft; an elastic pressurizing means which elastically pressurizes to allow the stopping lever to rotate and moves towards the cam side, to allow the stopping unit to hang on the hanging unit in the folded status between the circling link and the cushion frame, and to block the relative rotation between the circling link and the cushion frame; and a hanging releasing means which releases the hanging between the stopping unit and the hanging unit by applying an external force. Accordingly, the present invention is able to, as an apparatus for maintaining a folded status of the sinking seat for the vehicle, have simple, compact composition and installation, and to realize a precise fastening mechanism between parts.

Description

TECHNICAL FIELD [0001] The present invention relates to a locking device for a vehicle sinking sheet,

The present invention relates to a locking device for maintaining the folded state of the sinking sheet as one component of a sinking sheet configured to be folded into a storage space provided on the floor of a vehicle body.

The sinking sheet for a vehicle is a mechanism mainly applied to an SUV vehicle or a rear seat of a van. For example, as shown in Fig. 1, a sinking seat for a vehicle is provided with an upright state (A) (B) housed in the folded state (S).

2, the seat cushion frame 11 (see Fig. 2) is provided as a means for holding the folded state B so that the seat accommodated in the storage space S is not heard by an external shock or the like to the vehicle, (B) of the seat (1) by providing a hook (12) which is rotatably mounted on the swing link (13) and a retaining pin (14) 12 are fastened to the engagement pin 14 so that the folded state B of the sheet is maintained.

However, the combination of the hook 12 and the engaging pin 14 for holding the folded state B of the sheet 1 is not only complicated in the structure of the parts, Therefore, there is a problem that it is difficult to implement an accurate fastening mechanism, and further, it is necessary to improve an additional and temporary configuration like the stiffening pin 14.

[Prior Art Literature] Patent Registration No. 10-1534908 (Publication Date: July 20, 2015)

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a locking device for a sinking sheet for a vehicle, which is simple and compact in structure and installation, and which can realize an accurate fastening mechanism between parts, for maintaining the folded state of the sinking sheet for a vehicle.

In order to achieve the above object, according to the present invention, there is provided a locking device for a vehicle, comprising: a swing link pivoting about a lower fixed shaft; and a locking member for locking a folded state of a cushion frame between a rear end of the swing link A cam which is fixed to an upper end of the swivel link and rotates with the swivel link about the swivel axis and has a hook formed on a part of an outer circumferential surface of a certain radius about the swivel axis; And a cushion frame which is rotatably coupled to a lever shaft relatively fixed to a rear end portion of the cushion frame so as to be parallel to the pivot shaft and which is spaced from the lever shaft in the radial direction, A stop lever slidably contacting with the outer circumferential surface of the cam or engaging with the engaging portion according to a relative rotation of the cam; So that the stopping portion is engaged with the engaging portion in the folded state between the revolving link and the cushion frame so that the toggle lever is engaged with the engaging portion, Elastic pressing means for blocking relative rotation between the cushion frames; And wherein the stop lever is rotated in the opposite direction of the cam about the lever axis by application of an external force so that relative rotation between the swivel link and the cushion frame is allowed by unbinding the stop portion and the engagement portion And a locking releasing means for locking the locking member in the locking position.

Here, the catching portion is a catching jaw that is obtained by incising a vertical surface inclined from the outer circumferential surface of the cam by a certain depth in the center direction and a horizontal surface extending from the inclined end portion of the vertical surface, and the stop portion is a relative juncture between the swivel link and the cushion frame A first straight surface portion slidingly contacting with the outer circumferential surface of the cam in accordance with the rotation and in surface contact with the horizontal surface in the folded state between the swivel link and the cushion frame and a second straight surface portion bent from the outer end portion of the first straight surface portion, And a second straight surface portion in surface contact with the vertical surface in the folded state between the link and the cushion frame.

In this case, the stop lever includes an operating plate and an actuating plate, which are integrally coupled to each other in the axial direction of the lever shaft and rotate integrally with each other about the lever axis, and the first straight line portion and the second straight line The surface portion is formed at one outer end of the actuating plate, and the releasing means may take a configuration acting on the operating plate.

In this case, the unlocking means may include an intermediate ring which is coupled to one side of the operating plate and a wire whose one end is connected to the intermediate ring.

The locking device of the sinking sheet for a vehicle may further include a latch leg integrally coupled to an upper end of the swing link and rotatably coupling an upper end of the swing link to the pivot shaft, It may be configured to rotate integrally with the latch leg.

The locking releasing means may include: a fixing bracket fixed to the cushion frame side and having an input side fixing wall portion and an output side fixing wall portion vertically extending from opposite side end portions opposing each other; An input side movable wall portion that is received between the input side fixed wall portion and the output side fixed wall portion and that is reciprocally slidably coupled to the fixed bracket and that faces the inside of the input side fixed wall portion and an output side movable wall portion that faces the inside of the output side fixed wall portion, A movable bracket formed with an addition; A spring interposed between the fixed bracket and the movable bracket and acting to slide the movable bracket in a direction of the output side fixed wall portion of the fixed bracket; A single input side wire penetrating through the input side fixed wall portion and coupled to the input side movable wall portion; And a plurality of output side wires which are passed through the output side fixed wall portion and are operated by the input side wire by engaging with the output side movable wall portion, wherein one end of each of the plurality of output side wires operated by the input side wire And the other end may be connected to the stop lever so as to rotate the stop lever in a direction opposite to the cam about the lever axis.

As described above, according to the locking apparatus for a vehicle sinking sheet according to the present invention, the cam is fixed to the upper end of the swing link and rotates about the pivot at the upper end together with the swing link, and is fixed to the rear end of the cushion frame, Since the folding state between the swivel link and the cushion frame can be maintained through the stop lever, the structure and installation are simpler and more compact than those of the prior art, and the tightening mechanism can be implemented I will.

1 is a schematic side view for explaining an operating mechanism of a sinking sheet for a vehicle to which the present invention is applied;
2 is a perspective view of a sinking sheet for a vehicle provided with a locking device for a sinking sheet for a vehicle according to the prior art,
3 is a perspective view of a vehicle sinking sheet provided with a locking device for a vehicle sinking seat according to an embodiment of the present invention,
FIG. 4 is a side view showing steps of the operating mechanism of the sinking sheet for a vehicle of FIG. 3;
5 and 6 are an enlarged view of a main portion showing a state in which a locking device of a sinking sheet for a vehicle is installed and operated in the sinking sheet for a vehicle according to the embodiment of the present invention,
Fig. 7 is a perspective view of the detent lever, which is a component of the locking device of the sinking sheet for a vehicle of Fig. 5,
Fig. 8 and Fig. 9 are top and bottom perspective views showing a main part of the releasing means, which is one component of the locking device of the sinking sheet for a vehicle of Fig. 5,
10 is a perspective view for explaining the action of the engagement release means shown in Fig.

The sinking sheet 2 for a vehicle to which the locking device for a vehicle sinking sheet according to the embodiment of the present invention is applied is as shown in Fig. 3 and includes a standing up state shown in Fig. 3 and a storage space As shown in Fig. 4.

The rear end of the seat cushion frame 21 rotatably engages with the upper pivot shaft 22a of the swivel link 22 and the swivel link 22 has the lower fixed shaft 22b, S), and is provided so as to be pivotable in the front-rear direction about the center thereof.

Particularly, in the present embodiment, the latch legs 23 are integrally coupled to the upper end of the revolving link 22, so that the upper end of the latch leg 23 is engaged with the revolving shaft 22a, 22 as a whole. The latch leg 23 is fastened to a striker (not shown) provided on the bottom side of the vehicle body when the seat 2 is standing up (see A in Fig. 1) together with the front latch leg 24, .

5, a cam 25 that is axially coupled to the pivot shaft 22a is provided at the upper end of the revolving link 22 so that the latch leg 23 and the revolving link 23 around the pivot shaft 22a 22 in rotation with them.

In this embodiment, the cam 25 has a latching portion 25b formed on a part of the outer circumferential surface 25a having a certain radius. The engaging jaw 25b is extended from the outer peripheral surface 25a of the cam 25 in a direction substantially orthogonal to the inclined inner edge of the vertical surface 25b-1 and a vertical surface 25b- By a horizontal plane 25b-2.

In correspondence with the cam 25 having such a configuration, on the side of the cushion frame 21, there is rotatably engaged with a lever shaft 21a which is relatively fixed to the rear end of the cushion frame 21 so as to be parallel to the pivot shaft 22a A stop lever 26 is provided.

The stop lever 26 is provided with a stop portion 26a so as to be spaced from the lever shaft 21a in the radial direction and is provided with elastic pressing means (not shown) such as a torsion spring which rotates and approaches the cam 25 side And acts on the cam 25 side.

Specifically, the stopper 26a rotates relative to the cushion frame 21 of the latch leg 23 (i.e., the swing link 22) about the pivot shaft 22a, (In the case of Fig. 6) or in a sliding contact with the engagement protrusion 25a (in the case of Fig. 5).

Particularly, in the folded state (see Fig. 4 (c)) in which the latch leg 23 (i.e., the swing link 22) and the cushion frame 21 are completely overlapped as shown in Fig. 6, The stopper portion 26a is engaged with the latching jaw 25b in the folding state of the seat 2 accommodated in the accommodating space (see S in Fig. 1) (22) and the cushion frame 21 are interrupted. Accordingly, even when an impact is applied to the vehicle body during running of the vehicle, the stored state of the seat 2 can be maintained.

Referring to FIGS. 5 and 7, the detent lever 26 according to the present embodiment will be described in detail. The detent lever 26 is integrally coupled to the lever shaft 21a in the axial direction thereof, An operating plate 261 and an actuating plate 262, which are rotated by a predetermined angle.

At one outer end of the actuating plate 262 is formed a first rectilinear surface portion 26a-1 extending generally radially and a second rectilinear surface portion 26a-2 bent generally perpendicularly from the outer end thereof, Thereby forming a stop 26a.

5, the first straight surface portion 26a-1 comes into contact with the outer peripheral surface 25a of the cam 25 so as to be slidable in most of the states including the standing state of Fig. 5, The stop lever 26 is further pivoted toward the cam 25 due to the action of the elastic pressing means as described above so that the first straight surface portion 26a-1 is moved in the horizontal plane 25b of the engaging jaw 25b on the cam 25 side 2 and the second straight surface portion 26a-2 is brought into surface contact with the vertical surface 25b-1 so that the engagement between the stop portion 26a and the engagement step 25b is achieved.

6 and 7, a medial ring 161 is coupled to one side of the operating plate 261 with a pin 162, and the medial ring 161 is connected to one end of the wire 146. Both the intermediate ring 161, the pin 162 and the wire 146 are connected to the operating plate 261 with the lever shaft 21a as the center by the application of the external force through the wire 146, And is included in the engagement releasing means for releasing the engagement between the stop portion 26a and the engaging portion 25b by rotating in the opposite direction (counterclockwise in the drawing).

The relative rotation between the latch leg 23 (i.e., the swivel link 22) and the cushion frame 21 is allowed by the action of the engagement releasing means.

The releasing means includes a one-touch operation device 100 installed on the bottom surface of the cushion frame 21 of the seat 2 as shown in Figs. The one-touch operation device 100 includes a fixed bracket 110 installed and fixed to the cushion frame 21 as shown in Figs. 8 and 9, a movable bracket 110 slidably coupled to the fixed bracket 110, (120).

The fixing bracket 110 is formed such that the input side fixing wall portion 112 and the output side fixing wall portion 113, which extend vertically from both left and right ends of the fixed plate surface portion 111, are opposed to each other.

The movable bracket 120 has a movable plate portion 121 which is in contact with the fixed plate surface portion 111 in a face-to-face contact and relatively slidably and slidably engaged with the movable plate portion 121. The movable plate portion 120 is vertically extended from both left and right ends of the movable plate portion 121 The input side movable wall portion 122 and the output side movable wall portion 123 are protruded so as to face each other.

The input side movable wall portion 122 is disposed on the inner side of the input side fixed wall portion 112 on the side of the fixed bracket 110 and facing the input side movable wall portion 122. The output side movable wall portion 123 is fixed on the output side of the fixed bracket 110 side And is disposed on the inner side of the wall portion 113 so as to face each other.

As a result, the movable bracket 120 can be slidably coupled to the fixed bracket 110 in a predetermined range in a state where the movable bracket 120 is accommodated between the input-side fixed wall portion 112 and the output-side fixed wall portion 113 of the fixed bracket 110 do.

8, a slide hole 111a extending in the left-right direction is formed on the fixed plate surface portion 111 of the fixed bracket 110, and a slide hole 111a extending in the left-right direction along the plate surface is formed on the movable plate surface 111a of the movable bracket 120 A plurality of guide pins 121a are slidably guided through the slide holes 111a.

9, tensile springs 131 and 132 are interposed between the output side movable wall 123 of the movable bracket 120 and the output side fixed wall 113 of the corresponding fixed bracket 110 So that the movable bracket 120 always slides in the direction of the output side fixing wall portion 113 of the fixing bracket 110. [

10, the input side wire 141 for operating the vehicle seat penetrates through the input side fixed wall portion 112 via the sleeve 151 and is connected to the input side movable wall portion 122 The plurality of output side wires 143 to 146 operated by the input side wire 141 respectively correspond to the output side movable wall portion 123 through the output side fixed wall portion 113 via the sleeves, ).

The one-touch operation device 100 for a vehicle seat described above is fixedly mounted on the bottom surface of the seat side cushion frame (21 in Fig. 3) through a fixing bracket (110 in Fig. 9).

10 and 3, when the movable bracket 120 is relatively slid to the left with respect to the fixed bracket 110 due to the operation of the input side wire 141 due to the user's lever operation or the like, The plurality of output side wires 142 to 146 coupled to the output side movable wall 123 are simultaneously operated by being slid to the left.

Thus, the two latch legs (24 in Fig. 3) forward are released by the first and second output side wires 142 and 143 of the output side wires, and by the third and fourth output side wires 144 and 145 of the output side wires The two latch legs at the rear (23 in Fig. 3) are released. The engagement of the cam 25 with the stop lever 26 is released by the fifth output wire 146 of the output side wire as described above.

9, the output-side movable wall 123 of the movable bracket 120 includes a plurality of wire-engaging portions 123a and a plurality of spring-movable engaging portions 123b arranged to be spaced apart from each other in the transverse direction The output side fixing wall portion 113 of the fixing bracket 110 also has a plurality of wire penetration portions 113a corresponding to the plurality of wire coupling portions 123a and the plurality of spring movable coupling portions 123b A plurality of spring fixing portions 113b (see FIG. 8) are formed corresponding to the plurality of wire penetration portions 113a, and are spaced apart from each other in the transverse direction.

Accordingly, the plurality of output side wires (142 to 146 in FIG. 10) are respectively coupled to the plurality of wire coupling portions 123a on the side of the corresponding movable bracket 120 via the plurality of wire penetration portions 113a, One end of each of the tension springs 131 and 132 is engaged with the corresponding movable spring engaging part 123b to be fixed thereto, and the other end thereof is fixed to the corresponding spring fixed engaging part 113b.

It is difficult to understand that the scope of the invention and the scope of the invention are limited to those described above, since the locking device of the sinking sheet for a vehicle described above is only one embodiment for facilitating understanding of the present invention.

The scope of the present invention is defined by the appended claims and their equivalents.

2: sinking sheet 21: cushion frame
21a: Lever shaft 22:
22a: pivot shaft 22b: fixed shaft
23, 24: latch leg 25: cam
25a: outer circumferential surface 25b:
25b-1: vertical plane 25b-2: horizontal plane
26: stop lever 26a:
26a-1: first straight-line surface portion 26a-2: second straight-
100: One-touch operation device for vehicle seat 110: Fixing bracket
111: Fixing plate surface portion 111a: Slide ball
112: input side fixed wall portion 113: output side fixed wall portion
113a: wire penetrating part 113b: spring fixing part
120: movable bracket 121: movable plate portion
121a: guide pin 122: input side movable wall portion
123: output side movable wall portion 123a:
123b: a spring movable coupling portion 131, 132: a tension spring
141: input side wire
142, 143, 144, 145, 146: output side wire 151: sleeve
161: medial ring 162: pin
261: Operating plate 262: Actuating plate

Claims (6)

A locking device for a vehicle sinking sheet for fixing a folded state between a swing link pivoting about a lower fixed shaft and a cushion frame whose rear end is rotatably engaged with a pivot shaft at an upper end of the swing link,
A cam fixed to the upper end of the swivel link and rotating together with the swivel link about the swivel axis and having a hook formed on a part of an outer circumferential surface having a predetermined radius around the swivel axis;
And a cushion frame which is rotatably coupled to a lever shaft relatively fixed to a rear end portion of the cushion frame so as to be parallel to the pivot shaft and which is spaced from the lever shaft in the radial direction, A stop lever slidably contacting with the outer circumferential surface of the cam or engaging with the engaging portion according to a relative rotation of the cam;
So that the stopper is engaged with the engaging portion in the folded state between the revolving link and the cushion frame so that the stopper lever is engaged with the engaging portion, Elastic pressing means for blocking relative rotation between the cushion frames; And
The stop lever is rotated in the opposite direction of the cam about the lever axis by the application of an external force so as to allow the relative rotation between the swing link and the cushion frame to be released, And a releasing means for releasing the locking member. The method according to claim 1,
The catch
A locking protrusion which is obtained by being cut into a vertical surface inclusive from the outer peripheral surface of the cam by a certain depth in the center direction and a horizontal surface extending from the inclined end of the vertical surface,
The stop
A first linear surface portion slidingly contacting the outer circumferential surface of the cam in accordance with a relative rotation of the swivel link and the cushion frame, the first linear surface portion contacting the horizontal surface in the folded state between the swivel link and the cushion frame, And a second straight surface portion which is bent from an outer end of the swing link and is in surface contact with the vertical surface in the folded state between the swing link and the cushion frame. 3. The method of claim 2,
The stop lever
And an actuating plate and an actuating plate which are stacked on each other in the axial direction of the lever axis and integrally rotate with each other about the lever axis,
The first straight surface portion and the second straight surface portion being formed at one outer end of the actuating plate,
And the engagement releasing means acts on the operating plate. The method of claim 3,
The engagement release means
An intermediate ring for pin-joining to one side of the operating plate, and a wire having one end connected to the intermediate ring. The method according to claim 1,
Further comprising a latch leg integrally coupled to an upper end of the swivel link and rotatably coupling an upper end of the swivel link to the pivot shaft,
And the cam rotates integrally with the latch leg about the pivot shaft. The method according to claim 1,
The engagement release means
A fixing bracket fixed to the cushion frame side and having an input side fixing wall portion and an output side fixing wall portion vertically extending from opposite side ends thereof;
An input side movable wall portion that is received between the input side fixed wall portion and the output side fixed wall portion and that is reciprocally slidably coupled to the fixed bracket and that faces the inside of the input side fixed wall portion and an output side movable wall portion that faces the inside of the output side fixed wall portion, A movable bracket formed with an addition;
A spring interposed between the fixed bracket and the movable bracket and acting to slide the movable bracket in a direction of the output side fixed wall portion of the fixed bracket;
A single input side wire penetrating through the input side fixed wall portion and coupled to the input side movable wall portion; And
And a plurality of output side wires penetrating through the output side fixed wall portion to be coupled to the output side movable wall portion to be operated by the input side wire,
And the other end of one of the plurality of output side wires whose one end is operated by the input side wire is connected to the stop lever to rotate the stop lever in a direction opposite to the cam about the lever axis The locking device for a vehicle sinking sheet.

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