The present invention relates to a vehicle-seat apparatus that is mounted on a vehicle seat and thus makes it possible to easily fold the vehicle seat and to accommodate the folded vehicle seat into an accommodation space thereunder.
In the related art, there have been provided seating apparatuses that make it possible to fold a rear vehicle seat in the second row, the third row, and so on and to accommodate the folded rear vehicle seat into an accommodation space provided under or behind the rear vehicle seat in order to secure an expanded space for loading baggage.
Particularly, an example of the related art is Korean Patent No. 10-1534908 titled “APPARATUS FOR ACCOMMODATING VEHICLE SEAT” (issued on Jul. 1, 2015) directed to a seating apparatus that makes it possible to fold a seat and to accommodate the folded seat into an accommodation space provided under the seat, as is the case with the invention in the present application. As illustrated in
The objective of the present invention is to provide a vehicle-seat apparatus that is capable of securing the stability of a seat and preventing the seat from shaking.
In order to achieve the objective described above, according to an aspect of the present invention, there is provided a vehicle-seat apparatus that is installed in a vehicle seat which includes a seat cushion that is horizontally installed and a seat back that extends upward from a rear end portion of the seat cushion and is installed in a manner that is rotatable forward with respect to the seat cushion, the vehicle-seat apparatus including: a front link of which an upper end portion is connected by a hinge mechanism to a front portion of the seat cushion; a sliding member that is connected by the hinge mechanism to a lower end portion of the front link; a sliding guidance member that is fixedly installed on a bottom surface of an accommodation space formed under the vehicle seat, in such as manner as to extend backward and forward, and guides linear backward and forward movements of the sliding member; an L-shaped main link of which a front end portion is connected by the hinge mechanism to a body of the front link and of which a rear upper end portion is connected by the hinge mechanism to a lower end portion of the seat back; a fixation bracket that is fixedly installed on an upper end portion of a rear wall of the accommodation space; and a rear support link of which a front upper end portion is connected by the hinge mechanism to a rear portion of the seat cushion, and of which a rear lower end portion is connected by the hinge mechanism to the fixation bracket.
In the vehicle-seat apparatus, a shaft support portion, extending transversely, that is connected by the hinge mechanism to the lower end portion of the front link and a sleeve, extending backward and forward, that is integrally combined with the shaft support portion may be formed in the sliding member and on the sliding member, respectively, and the sliding guidance member may be a guidance shaft that, for insertion, passes through the sleeve.
The vehicle-seat apparatus may further include comprising an intermediate link of which a front end portion is connected by the hinge mechanism to a rear lower end portion of to the main link and of which a rear end portion is connected by the hinge mechanism to a body of the rear support link, and which thus causes the rear support link to pivot on the fixation bracket according to ascending and descending movements of the main link.
The vehicle-seat apparatus may further include an intermediate sleeve, formed of synthetic resin, that is inserted into an internal space of the sleeve on the sliding member, thereby being combined therewith and thus serves as a connection between the sleeve and the guidance shaft.
The vehicle-seat apparatus may further include a base frame that is installed on a bottom surface of the accommodation space in such a manner as to extend backward and forward, in which front and rear end portions of the guidance shaft may pass through the respective vertical-plane portions, respectively, of a pair of “L” shaped brackets that are installed on front and rear end portions, respectively, of the base frame in such a manner as to be fixedly mounted thereon, thereby being fastened to each other for support.
In the vehicle-seat apparatus, a bracket that is connected by the hinge mechanism to a lower end portion of the front link and a sliding holder that is integrally combined with the bracket may be formed on the sliding member, and the sliding guidance member may be a sliding guide that holds the sliding holder to such a degree that backward and forward movements of the sliding holder are guided.
In the vehicle-seat apparatus, a striker that is removably connected by the hinge mechanism to the lower end portion of the front link, thereby being combined therewith, and a slider that has an extension bracket which is integrally combined with the striker may be formed on the sliding member, and the sliding guidance member may be a rail that holds the slider to such a degree that backward and forward movements of the slider are guided.
As described, with a vehicle-seat apparatus according to the present invention, the stability of a seat and the prevention of shaking thereof in an unfolded state can be achieved.
Specifically, a sliding member and a guidance member are configured to slide a lower end portion of a front link backward and forward, and thus the stable support of sliding can be achieved. Furthermore, with a shaft, a sleeve of the sliding member and a guidance shaft are combined with each other. With this configuration, a cost-saving advantage can be achieved.
Furthermore, according to the present invention, an intermediate link is configured to be additionally provided between a rear lower end portion of a main link and a rear support link, considering that a comparatively great force is applied for causing the rear support link directly supporting a seat to pivot. Thus, with a comparatively small angle and a comparatively small force, the rear support link can be smoothly caused to pivot. Therefore, as a whole, a seat can be folded or unfolded with a comparatively small force.
A vehicle-seat apparatus 110 according to an embodiment of the present invention, as illustrated in
The vehicle-seat apparatus 110 includes a front link 120 that has an upper end portion which is connected by a hinge mechanism to a front lower end portion of the seat cushion 101. A shaft 130, transversely extending, passes through a lower end portion of the front link 120, thereby being connected thereto by the hinge mechanism. The shaft 130 is inserted into a shaft support portion 142, thereby being connected thereto by the hinge mechanism. The shaft support portion 142 is formed in such a manner as to transversely pass through a hollow block 141 that constitutes a portion of a sliding member 140 (refer to
As illustrated in
An intermediate sleeve 145 formed of synthetic resin is inserted into an internal space in the sleeve 143, thereby being combined therewith. Thus, the sleeve 143 and the guidance shaft 150 that are both metal are brought into direct contact with each other. This prevents friction noise and abrasion and makes a smooth sliding movement possible.
Both front and rear end portions of the guidance shaft 150 pass through the respective vertical-plane portions 161 and 171, respectively, of an L-shaped bracket 160 and 170, thereby being fastened to each other by a bolt-nut connection mechanism. Horizontal-plane portions 162 and 172 make up the respective lower end portions, respectively, of the brackets 160 and 170. As illustrated in
With reference to
A rear lower end portion of the main link 190, as illustrated in
Normally, the rear support link 220 is formed in the shape of the letter L. A front upper end portion of the rear support link 220 is connected by the hinge mechanism to a rear portion of the seat cushion 101 (refer to
With the configuration described above, in a case where a user rotates the seat back 102 forward in order to accommodate the vehicle seat 100 in the unfolded position, which is illustrated in
In this manner, as illustrated in
On the other hand, when the vehicle seat 100 sinks while changing from a state in
In order to return the vehicle seat 100 from the completely folded state to the unfolded state, in a case where, as illustrated in
The intermediate link 210 stops pivoting forward, when the seat back 102 rotates upward by an angle of approximately 90 degrees on the fixation shaft 231 in the unfolded state of the vehicle seat 100 that is illustrated in
On the other hand, the above-described vehicle-seat apparatuses 110 according to the embodiment of the present invention are provided for helping a person of ordinary skill in the art to get a full understanding of the present invention. Equivalents of the elements disclosed in the specification and equivalents of the technical idea of the present invention fall within the scope of the present invention. The scope of the prevent invention should be determined by the following claims.
Number | Date | Country | Kind |
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10-2018-0019959 | Feb 2018 | KR | national |
10-2018-0143214 | Nov 2018 | KR | national |
Filing Document | Filing Date | Country | Kind |
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PCT/KR2019/001892 | 2/15/2019 | WO | 00 |