KR20180066646A - Rear-seat sliding apparatus of latch rotating type - Google Patents

Abstract

A latch rotation type rear seat sliding apparatus according to an embodiment of the present invention includes: a seat cushion provided with a cushion frame; a support that supports the seat cushion such that the seat cushion can be spaced apart from the bottom surface of a vehicle body; a sliding part connected to the support and the cushion frame to slide the seat cushion forwards and rearwards; a back support provided with a back frame link-connected to the cushion frame and interworking with the seat cushion when the seat cushion slides such that an inclination angle of the back support with respect to the seat cushion varies; a striker fixed to a partition wall of the vehicle body, which is spaced apart from the back support; and a latch part coupled to a hinge bracket fixed to the back frame to be rotatable and engaged with the striker. It is preferable that if the seat cushion is moved forwards by the sliding part, the back support is moved in a movement direction of the seat cushion as a lower end of the back frame interworks with the seat cushion, and an inclination angle of the back frame with respect to the seat cushion varies as an upper end of the back frame is rotated by the latch part with respect to the striker. Similarly to a front seat passenger, a rear seat passenger can also adjust an angle of the back support of the rear seat to a desired location to secure passenger convenience.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a rear seat sliding device,

More specifically, the present invention relates to a latch pivoting rear seat sliding device, more particularly, to a structure in which a backrest is reclined in conjunction with a seat cushion during a sliding operation of a seat cushion, And more particularly, to a latch-type rear seat sliding apparatus capable of adjusting the back angle to a position desired by the occupant, thereby ensuring the convenience of the occupant.

Generally, a passenger car is provided with a front seat on which a driver and an assistant are seated and a rear seat for an additional passenger on the rear side of the front seat. Unlike a train, a seat bus, etc., a passenger car is fixed to the rear bulkhead due to space limitation.

Conventional passenger car rear seats have not been provided with a reclining device, and therefore have to be seated in the same posture for a considerable time as compared with the front seat. In order to solve this problem, in a conventional utility model publication No. 1997-0002186, a "rear seat" includes "a fixture bag fixedly connected to both sides of a seat cushion of a rear seat, The recliner attached to both sides so as to be pivoted in forward and backward directions is provided with a recliner having one side hinged to a reclining seatback by a leaf spring and a gear formed on the other side of the reclining seatback, a baffle plate sandwiched between gears to which the recliner is fixed, A seat cushion and a seatback configured by reclining provided on the left and right sides of the reclining rear bag so that the reclining rear bag is pivoted to the front and rear with respect to the seat cushion.

However, even with this conventional technique, only the seatbelt can be reclined only, and it is difficult to recline by interlocking with the seat cushion, so that the angle adjustment of the seat back alone has not provided a comfortable feeling to the passengers.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a latch-type rear seat sliding device in which a backrest of a rear seat is interlocked with a seat cushion in a sliding operation of a seat cushion.

According to an embodiment of the present invention, a latch pivoting rear seat sliding apparatus includes: a seat cushion provided with a cushion frame; A support for supporting the seat cushion so as to be spaced from the floor of the vehicle body; A sliding portion connected to the support portion and the cushion frame for sliding the seat cushion back and forth; A backrest provided with a back frame linked to a cushion frame, the backrest interlocking with the seat cushion when the seat cushion is slidingly operated, the inclination angle of the seat cushion being variable; A striker fixed to the back of the vehicle body and spaced apart from the backrest; And a latch portion rotatably coupled to the hinge bracket fixed to the back frame and engaged with the striker. When the seat cushion is moved forward by the sliding portion, the lower portion of the back frame is interlocked with the seat cushion, And the upper end of the back frame is rotated with respect to the striker by the latch portion so that the inclination angle with respect to the seat cushion is variable.

In one embodiment of the present invention, when the seat cushion is moved forward by the sliding portion and the hinge bracket is moved in the moving direction of the back frame, the latch portion is provided with a point of engagement with the striker as a fixed shaft, It is preferable to rotate in the counterclockwise direction.

In one embodiment of the present invention, the sliding portion includes: a rail fixed to the support portion; A movable member coupled to the cushion frame and coupled to the rail such that the movable member is movable back and forth along the rail; And a stopper provided at a portion where the moving member and the rail abut against each other to limit the sliding distance of the moving member in the forward sliding operation of the moving member.

In one embodiment of the present invention, the sliding portion includes: a sliding link portion linked to the front end of the cushion frame and the first supporting member of the supporting portion; And a sliding block coupled to the cushion frame and spaced apart from the sliding link portion and connected to the second supporting member of the supporting portion, wherein the sliding block has a sliding opening through which the supporting shaft of the second supporting member is engaged, It is preferable to limit the moving distance of the seat cushion when the seat cushion is moved forward or rearwardly.

In one embodiment of the present invention, the sliding link portion includes: a first link shaft coupled to a front end of the cushion frame; And a second link shaft pivotally connected to the first link shaft and the first support member such that the first link shaft pushes the cushion frame so that the cushion frame slides forward when the second link shaft rotates in the first rotation direction, It is preferable that the first link shaft pulls the cushion frame so that when the second link shaft is rotated in the second rotation direction opposite to the first rotation direction, the cushion frame slides rearward and returns to its original position.

The present invention relates to an interlocking structure of a seat cushion and a back frame, and a structure in which a latch portion is rotated in a state where the latch portion is engaged with a striker when the back frame is interlocked, unlike a conventional rear seat provided adjacent to a vehicle bulkhead, The backrest is interlocked with the seat cushion during the sliding operation of the seat cushion so that the occupant can adjust the backrest angle of the rear seat to a desired position.

As a result, the occupant of the rear seat can adjust the angle of the backrest of the rear seat to the position desired by the occupant, as well as the occupant of the front seat.

1 schematically illustrates a connection structure between components of a latch pivoting rear seat sliding apparatus according to a first embodiment of the present invention.
2 schematically shows a configuration of a sliding portion of a latch pivoting rear seat sliding apparatus according to a first embodiment of the present invention.
Fig. 3 is an enlarged view of a portion A in Fig. 1, schematically showing a state in which the latch portion is coupled to the back frame.
4 (a) schematically shows a state diagram of a ratchet-type rear seat sliding apparatus at a standard position in which the seat cushion does not slide in the first embodiment of the present invention, and Fig. 4 (b) And schematically shows an operating state of the latch-pivotable rear seat sliding device at a sliding position.
Fig. 5 (a) is an operational state view of the latch portion when the seat cushion is not slid in the latch-pivoting rear seat sliding apparatus according to the first embodiment of the present invention, Fig. 5 (b) Fig.
6 schematically shows a connection structure between the components of the latch rotating type rear seat sliding apparatus according to the second embodiment of the present invention.
7 (a) schematically shows a state diagram of a latch-pivotable rear seat sliding device at a standard position in which a seat cushion does not slide in a second embodiment of the present invention, and Fig. 7 (b) And schematically shows an operating state of the latch-pivotable rear seat sliding device at a sliding position.
Fig. 8A is an operational state view of the latch portion when the seat cushion is not slid in the latch-pivoting rear seat sliding apparatus according to the second embodiment of the present invention, Fig. 8B is an operating state of the latch portion when the seat cushion is slid Fig.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a latch pivoting rear seat sliding apparatus according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

1st Example

The present invention is intended to improve the ride quality of a passenger by adjusting the position of a seat cushion and a backrest of a rear seat provided adjacent to a vehicle body partition wall. The seat cushion is the portion of the passenger's hips. The backrest is the portion of the passenger's back.

1, a latch pivoting rear seat sliding apparatus 100 according to an embodiment of the present invention includes a supporting portion 110, a sliding portion 120, a seat cushion 130, a backrest 140, When the seat cushion 130 includes the latch portion 160 and the striker 170 and the backrest 140 is reclined in conjunction with the seat cushion 130 during the sliding operation of the seat cushion 130 and the occupant of the rear seat is seated on the rear seat The seat occupant adjusts the position of the seat cushion 130 and the backrest 140.

1 to 5, the components according to the present embodiment will be described as follows.

The seat cushion 130 is spaced apart from the vehicle body bottom surface 10 by the support portion 110. The support portion 110 supports the seat cushion 130. The support portions 110 are positioned at both lower sides of the seat cushion 130. The supporting part 110 is provided with a sliding part 120. The sliding portion 120 is provided between the seat cushion 130 and the support portion 110 so as to slide the seat cushion 130 back and forth.

As shown in FIG. 1, the seat cushion 130 is provided with a cushion frame 131 therein. The rear end 132 of the cushion frame is linked to the lower end 142 of the back frame of the backrest 140 by the link member 135. The seat cushion 130 is operated to slide forward by the sliding portion 120 toward the front seat (not shown) or to be slid rearward to return to its original position.

The backrest 140 is provided with a back frame 141 therein. The lower end 142 of the back frame 141 is connected to the cushion frame 131 by the link member 135. The back frame 141 is interlocked with the seat cushion 130 by the link member 135 when sliding the seat cushion 130 so that the inclination angle with respect to the cushion frame 131 Lt; / RTI >

A hinge bracket 143 is provided at an upper end of the back frame 141. The hinge bracket 143 supports the latch portion 160. The latch portion 160 is rotatably coupled to the hinge bracket 143 by a pivot shaft 161. The latch portion 160 is engaged with the striker 170 and engaged. The back frame 141 is coupled to the striker 170 by the latch portion 160.

The striker (170) is fixed to the vehicle body partition wall (20). The vehicle body partition 20 is a rear partition provided on the vehicle body so as to be spaced apart from the backrest 140 of the rear seat. Here, the rear bulkhead is a bulkhead provided in the rear seat of a four-seater passenger car.

Hereinafter, the sliding portion 120 for moving the seat cushion 130 back and forth will be described.

The sliding portion 120 slides the seat cushion 130 back and forth. The sliding portion 120 includes a rail 121, a moving member 123, a cushion coupling member 124, and a stopper 129.

The rail 121 is fixed to the support portion 110. The rail 121 guides the moving member 123 back and forth. A moving member 123 is movably installed on the rail 121. [

The lower end of the moving member 123 is inserted into the rail 121. The shifting member 123 is provided at its upper end with a cushion engaging member 124. The cushion engagement member 124 connects the cushion frame 131 and the movable member 123. The shifting member 123 is fixed to the cushion frame 131 by the cushion engagement member 124.

Each of the moving members 123 located on both sides of the seat cushion 130 is connected by a cushion connecting member 127. The cushion connection member 127 connects a pair of cushion engagement members 124 fixed to both sides of the seat cushion 130. [ The shifting members 123 provided on both sides of the seat cushion 130 are connected by the cushion engagement member 124 so that when the seat cushion 130 is slid, the seat cushion 130 is slid .

In this embodiment, the moving member 123 is provided with a stopper 129. The stopper 129 limits the moving distance of the moving member 123 when the moving member 123 is slid forward. The stopper 129 is provided at a position where the sliding movement of the seat cushion 130 can be restricted when the sliding portion 120 is designed so that the seat cushion 130 abuts against the rail 121 during the sliding operation of the seat cushion 130 .

Hereinafter, with reference to Figs. 4 and 5, the operating state of the latch rotating type rear seat sliding apparatus 100 according to the present embodiment will be described.

4 (a) schematically shows a state diagram of a latch-pivoting rear seat sliding apparatus 100 at a standard position in which the seat cushion 130 is not slid in the first embodiment of the present invention, and Fig. 4 b schematically shows an operating state of the latch pivoting rear seat sliding apparatus 100 at a position where the seat cushion 130 is slid. 5A is an operational state diagram of the latch portion 160 when the seat cushion 130 is not slid in the latch pivoting rear seat sliding apparatus 100 according to the first embodiment of the present invention, 5 (b) is an operational state diagram of the latch portion 160 when the seat cushion 130 is slid.

As shown in Fig. 4 (a), the striker 170 is fixed to the vehicle body partition 20. In this embodiment, the position of the striker 170 is a fixed position. 4A, reference numeral 171 denotes a point where the latch portion 160 and the striker 170 are engaged with each other. In this specification, for convenience of explanation, the point at which the latch portion 160 and the striker 170 are engaged will be referred to as "fixed shaft 171 ".

For convenience of explanation, the position of the back frame 141 and the latch portion 160 in the state where the seat cushion 130 is not slid shown in Fig. 4 (a) is referred to as "standard position" The position of the back frame 141 and the latch portion 160 in the state in which the seat cushion 130 is slid shown in Fig. 4 (b) is referred to as "sliding position ".

4 (a), the back frame 141 of the backrest 140 is coupled to the striker 170 by the latch portion 160. As shown in Fig. 4 (b), when the seat cushion 130 is slid forward by the sliding portion 120 at the standard position, the link member 135 at the lower end of the back frame 141 moves the cushion frame 130, The latch portion 160 is moved in the moving direction of the hinge bracket 143 with the fixed shaft 171 engaged with the striker 170 as shown in Figure 5 (b) Clockwise direction with respect to the base 161.

The upper end of the back frame 141 is rotated clockwise with respect to the striker 170 by the latch portion 160 so that the lower end of the back frame 141 is moved in the moving direction of the cushion frame 131. At the sliding position shown in FIG. 4 (b), the seat cushion 130 is moved forward than the standard position, and the backrest 140 is inclined upward with respect to the vehicle body bottom surface 10.

The back frame 141 according to the present embodiment is structured so that the seat cushion 130 can be slid at the time of sliding operation of the seat cushion 130 by the interlocking structure with the cushion frame 131 and the rotation structure of the latch portion 160 engaged with the striker 170 130 and the angle of the backrest 140 is adjusted. The inclination angle of the backrest 140 relative to the seat cushion 130 varies depending on the sliding distance of the seat cushion 130. [

The present invention enables the occupant of the rear seat to adjust the angle of the backrest 140 of the rear seat to the position desired by the occupant as well as the occupant of the front seat (not shown).

Second Example

Hereinafter, a latch pivoting rear seat sliding apparatus 200 according to a second embodiment of the present invention will be described with reference to Figs. 6 to 8. Fig.

6 schematically shows a connection structure between the components of the latch pivoting rear seat sliding apparatus 200 according to the second embodiment of the present invention.

6, the latch pivoting rear seat sliding apparatus 200 according to the present embodiment includes a support portion 210, a sliding portion 220, a seat cushion 230, a backrest 240, a latch portion 260 and a striker 270. The seat cushion 230 has a structure in which the backrest 240 is interlocked with the seat cushion 230 in a sliding operation of the seat cushion 230. When the occupant of the rear seat seats on the rear seat, And the position of the backrest 240 can be appropriately adjusted to the occupant.

In this embodiment, the support 210, the seat cushion 230, the backrest 240, the latch portion 260 and the striker 270 are the same as those of the support portion 110, the seat cushion 130, The latch 140, the latch 160, and the striker 170, respectively. Therefore, in order to avoid repetition of the description, a detailed description of the support portion 210, the seat cushion 230, the backrest 240, the latch portion 260, and the striker 270 will be omitted.

Hereinafter, the sliding portion 220 having a structure different from that of the first embodiment will be described.

As shown in FIG. 6A, the sliding portion 220 includes a sliding link portion 221 and a sliding block 223.

The sliding link portion 221 is linked to the front end of the cushion frame 231 and the first supporting member 211 of the supporting portion 210. The sliding link portion 221 includes a first link shaft 221a and a second link shaft 221b.

One end of the first link shaft 221a is fixed to the front end of the cushion frame 231. A second link shaft 221b is rotatably installed at the other end of the first link shaft 221a. The second link shaft 221b is rotatably connected to the first link shaft 221a and the first support member 211. [

7 (b), when the second link shaft 221b is rotated in the first rotation direction R1, the first link shaft 221a is rotated in the first rotation direction The cushion frame 231 is pushed out so that the cushion frame 231 is slid forward by a pushing force in the direction R1.

When the second link shaft 221b is rotated in the second rotation direction, the first link shaft 221a is retracted by the force that the second link shaft 221b is pulled in the second rotation direction, The cushion frame 231 is pulled so as to return to its original position while being slid. Here, the second rotation direction is opposite to the first rotation direction R1. In the present specification, the first rotation direction R1 is shown in the counterclockwise direction and the second rotation direction is shown in the clockwise direction.

The sliding block 223 guides sliding movement of the cushion frame 231 back and forth. The sliding block 223 is separated from the sliding link portion 221 and coupled to the cushion frame 231. The sliding block 223 is connected to the second support member 212 of the support portion 210 so as to be movable back and forth. The sliding block 223 is provided with a sliding opening 223a. The sliding opening 223a is an opening through which the support shaft 213 of the second support member 212 is caught.

The sliding opening 223a is engaged with the support shaft 213 of the second support member 212 when the seat cushion 230 is moved forward or backward by sliding movement of the sliding link portion 221, So that the moving distance of the moving part 230 is limited. In this embodiment, the sliding opening 223a and the support shaft 213 serve as stoppers.

Hereinafter, the operating state of the latch rotating type rear seat sliding apparatus 200 according to the present embodiment will be described with reference to FIGS. 7 and 8. FIG.

7 (a) schematically shows a state diagram of a latch-pivoting rear seat sliding apparatus 200 at a standard position in which the seat cushion 230 is not slid, and Fig. 7 (b) And schematically shows an operating state of the latch-pivoting rear seat sliding apparatus 200 at a sliding position. 8A is an operational state view of the latch portion 260 when the seat cushion 230 is not slid in the latch rotating type rear seat sliding apparatus 200 and FIG. And is an operational state diagram of the latch portion 260 when sliding.

As shown in Fig. 7 (a), the striker 270 is fixed to the vehicle body partition 20. In this embodiment, the position of the striker 270 is a fixed position. 7 (a), reference numeral 271 denotes a point where the latch portion 260 and the striker 270 are engaged. In this specification, for convenience of explanation, a point at which the latch portion 260 and the striker 270 are engaged will be referred to as a "fixed shaft 271 ".

The position of the back frame 241 and the latch portion 260 in a state in which the seat cushion 230 shown in Fig. 7A is not slid is referred to as "standard position" The position of the back frame 241 and the latch portion 260 in the state in which the seat cushion 230 shown in Fig. 7 (b) is slid is referred to as "sliding position ".

7 (a), the back frame 241 of the backrest 240 is coupled to the striker 270 by the latching portion 260. As shown in Fig.

7 (b), when the seat cushion 230 is slid forward, the second link shaft 221b is rotated in the first rotation direction R1 and the first link shaft 221b is rotated in the first rotation direction R1, 221a push the cushion frame 231 such that the cushion frame 231 slides forward by the force pushing the second link shaft 221b in the first rotation direction R1. The upper end of the back frame 241 is rotated at a predetermined angle with respect to the striker 270 so that the lower end 242 of the back frame 241 is connected to the cushion frame 231 by the link member 235, 231 and is moved in the moving direction of the cushion frame 231. 8 (b), the latch portion 260 is fixed to the striker 270 with a fixed shaft 271, and the latch portion 260 is rotated clockwise with respect to the pivot 261 of the hinge bracket 243 (R1).

The lower end of the back frame 241 is moved in the moving direction of the cushion frame 231 while the upper end of the back frame 241 is rotated clockwise with respect to the striker 270 by the latch portion 260. [ At the sliding position shown in FIG. 7 (b), the seat cushion 230 is moved forward than the standard position, and the backrest 240 is inclined upward with respect to the vehicle body bottom surface 10.

The back frame 241 according to the present embodiment is structured such that the seat cushion 230 can be slid at the sliding operation of the seat cushion 230 by the interlocking structure with the cushion frame 231 and the rotation structure of the latch portion 260 engaged with the striker 270 230 and the angle of the backrest 240 is adjusted. The inclination angle of the backrest 240 with respect to the seat cushion 230 varies depending on the sliding distance of the seat cushion 230.

The present invention has a structure in which the backrest 240 is interlocked with the seat cushion 230 in the sliding operation of the seat cushion 230 so that the occupant of the rear seat seats on the rear seat, (Not shown) By adjusting the angle of the backrest 240 of the rear seat to the position desired by the occupant, the convenience of the occupant can be ensured.

Although several embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various modifications may be made without departing from the principles and spirit of the invention . The scope of the invention will be determined by the appended claims and their equivalents.

100, 200: latch rotating type rear seat sliding device
110, 210: Support part 120, 220: Sliding part
121: rail 123: moving member
221: Sliding link portion 223: Sliding block
130, 230: seat cushion 131, 231: cushion frame
135, 235: Link member 140, 240:
141, 241: back frame 143, 243: hinge bracket
160, 260: latch unit 170, 270: striker

Claims (5)

A seat cushion provided with a cushion frame;
A support portion for supporting the seat cushion so as to be spaced apart from the vehicle body bottom surface;
A sliding portion connected to the support portion and the cushion frame to slide the seat cushion back and forth;
A backrest having a back frame linked to the cushion frame, the backrest interlocking with the seat cushion when the seat cushion is slid and varying the tilt angle with respect to the seat cushion;
A striker fixed to the body partition wall spaced apart from the backrest; And
And a latch portion rotatably coupled to the hinge bracket fixed to the back frame and engaged with the striker,
When the seat cushion is moved forward by the sliding portion, the lower end of the back frame is moved in the moving direction of the seat cushion in interlock with the seat cushion, and the upper end of the back frame is moved by the latch portion And the slider is rotated with respect to the striker so that the inclination angle with respect to the seat cushion is variable.
The method according to claim 1,
Wherein the latch portion is configured such that when the seat cushion is moved forward by the sliding portion and the hinge bracket is moved in the movement direction of the back frame, the latch portion is rotated about the pivot axis of the hinge bracket, And is rotated in the clockwise direction.
The sliding device according to claim 1,
A rail fixed to the support;
A moving member coupled to the cushion frame and coupled to the rail so as to be movable in the forward and backward directions along the rail; And
And a stopper provided at a portion where the moving member and the rail abut against each other to limit a sliding movement distance of the shifting member in a forward sliding operation of the shifting member.
The sliding device according to claim 1,
A sliding link portion linked to the front end of the cushion frame and the first support member of the support portion; And
And a sliding block spaced apart from the sliding link portion and coupled to the cushion frame, the sliding block being connected to the second support member of the support portion,
The sliding block is provided with a sliding opening in which the supporting shaft of the second supporting member is engaged so that the moving distance of the seat cushion is limited when the seat cushion is moved forward or backward by sliding movement of the sliding link portion Of the rear-seat sliding-type rear seat.
5. The slide fastener according to claim 4,
A first link shaft coupled to a front end of the cushion frame; And
And a second link shaft rotatably connected to the first link shaft and the first support member,
The first link shaft pushes the cushion frame so that the cushion frame slides forward when the second link shaft rotates in the first rotation direction,
And the first link shaft pulls the cushion frame so that the cushion frame is slid back and returned to its original position when the second link shaft is rotated in the second rotation direction opposite to the first rotation direction A latch-pivotable rear seat sliding device.

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