KR102244747B1 - Gravity-free seat for vehicle - Google Patents

Abstract

A gravity-free seat for a vehicle comprises: a seat rail portion in which an upper rail guide and a lower rail guide fixed to the bottom inside a vehicle are coupled, and in which a driving force is transmitted to a slide member connected to a driving portion for generating the driving force such that the upper rail guide moves in front and rear directions of the vehicle; an angle control portion in which first and second rear links are coupled to front and rear ends and left and right sides of the seat rail potion to form a pair and formed in a hinge coupling structure, such that an angle between a vehicle floor surface and a seating surface can be adjusted by rotation due to driving of an angle adjustment cylinder; an exoskeleton portion coupled to the angle control portion to form an armrest of a seat and the overall appearance of the seat; and a seating portion coupled to a lower end portion space of the exoskeleton portion, and comprising a seat base with the seating surface formed thereon and a seating driving portion for generating a driving force for ascending or descending of the seating surface, such that an angle of the seating surface is adjusted by a fore link rotated by the driving force generated by the seating driving portion. Therefore, the gravity-free seat for a vehicle can implement a zero-gravity position in the interior space of the vehicle.

Description

Vehicle weightless seat {GRAVITY-FREE SEAT FOR VEHICLE}

The present invention relates to a vehicle seat that implements a zero gravity state.

The zero-gravity posture is literally the most comfortable posture that the human body can take in a zero-gravity state. In other words, it can be said that no force or weight is applied to any part of the body. Of course, the ideal zero-gravity posture is possible in space or artificially created zero-gravity space, so it is impossible to make the force exerted on the body to '0' in a general condition. However, if the center of gravity can be dispersed throughout the body, you can feel the comfort of being in a state of weightlessness. Products commonly referred to as'zero gravity beds' are furniture designed to disperse the body's center of gravity. Compared to furniture, cars have different environments, such as space constraints and seating postures. It may be unreasonable to apply the zero gravity neutral posture as it is. Existing car seats were mainly to tilt the lumbar rest back. It was best to adjust the height of the lower cushion. In recent years, there is a trend of studying diversification of structures to realize zero gravity posture and applying them to various industrial fields.

Embodiments of the present invention are intended to provide a weightless seat for a vehicle capable of implementing a weightless posture in a vehicle interior space by adjusting the angle of the seating portion and the seatback of the furniture-type seat, which has a simple structure of the recliner portion to enhance the aesthetics of the exterior.

The seat rail part that is fixed to the floor inside the vehicle and forms a coupling structure between the upper rail guide and the lower rail guide, and the driving force is transferred to the slide member connected to the driving part generating the driving force, so that the upper rail guide moves to the front and rear of the vehicle. ; The front and rear ends of the seat rail are coupled to the left and right to form a pair, and the first rear link and the second rear link are formed in a hinged connection structure and rotated by the drive of an angle adjusting cylinder to form a vehicle floor and a seating surface. An angle control unit to which an angle of and is adjusted; An exoskeleton unit coupled to the angle control unit and forming an armrest of the seat and an overall appearance of the seat; It is coupled to the space at the lower end of the exoskeleton and is composed of a seat base on which a seating surface is formed, and a seating drive unit that generates a driving force for raising or lowering the seating surface. A seating portion in which the angle of the seating surface is adjusted; A weightless seat for a vehicle including a may be provided.

The weightless seat for a vehicle according to the embodiments of the present invention enables a weightless posture to be realized through a recliner portion and a seating portion. In particular, the weightless seat for a vehicle according to the present embodiments may be used to implement an angle of zero gravity posture with a seat structure having a simpler structure compared to the conventional one.

1 is a schematic perspective view of a weightless seat for a vehicle according to an embodiment of the present invention.
2 is a schematic perspective view of the seat rail portion shown in FIG. 1.
3 is a schematic side view of a frame of the weightless seat for a vehicle shown in FIG. 1
Figure 4 is a perspective view schematically showing the frame assembly structure of the exoskeleton portion and the seating portion and an enlarged view of the seating portion.
5 is a side view of a weightless seat for a vehicle implementing a zero gravity posture.

1 is a perspective view showing an assembly view of a weightless seat for a vehicle according to an embodiment of the present invention.

Referring to Figure 1, the weightless seat for a vehicle according to the present embodiment is fixed to the floor inside the vehicle, the seat is coupled to the seat rail unit and the seat rail unit consisting of a structure in which the seat is translated forward and rearward to interlock with the seating surface. An angle control unit in which the angle of the seatback is adjusted, and an exoskeleton portion in which the shape of the backrest and armrest on which the seat is seated is formed, and covered with a cushion material to provide comfort; It is coupled to the space at the lower end of the exoskeleton and is composed of a seating portion formed in a structure in which the angle of the seating surface is adjusted.

Hereinafter, the configuration shown in FIG. 1 will be described in detail with reference to the drawings.

2 is a schematic perspective view of the seat rail part 100 of the present invention.

Referring to FIG. 2, the seat rail part 100 according to the present embodiment may include a lower rail guide 110. The lower rail guide 110 may be elongated in the front and rear of the vehicle. The lower rail guide 110 may have an end bent inward. Accordingly, a retractable space may be formed inside.

The lower rail guide 110 may be fixed to the bottom of the vehicle. To this end, a floor fixing member 111 may be formed at the longitudinal end of the lower rail guide 110. When fixing the bottom surface of the lower rail guide 110, the protruding shape of the floor fixing member 111 is inserted into the bottom surface of the vehicle. Accordingly, the lower rail guide 110 and the bottom surface are in close contact and are fixed horizontally.

The seat rail part 100 may include a bearing connection member 120. The bearing connection member 120 may be positioned between the lower rail guide 110 and the upper rail guide 130 to be described later. The bearing connection member 120 may be formed to have a long length in the longitudinal direction of the lower rail guide 110. In addition, the bearing connection member 120 may be provided with bearing balls 121 at both ends. The bearing balls 121 provided at both ends may contact the inner surface of the lower rail guide 110. Accordingly, the combination of the lower rail guide 110 and the upper rail guide 130 to be described later may be formed in point contact. Such a point-contact coupling method may contribute to smooth movement of the zero-gravity seat 1000 for a vehicle by reducing friction when the seat rail part 100 moves forward and backward on a vehicle basis.

The seat rail part 100 may include an upper rail guide 130. The upper rail guide 130 may be formed in a shape and length corresponding to the lower rail guide 110. In addition, the upper rail guide 130 may be formed in a shape in which an end shape is inserted into the end of the lower rail guide 110. In addition, the upper rail guide 130 may have a coupling hole 131 of a bracket in which a sheet translation motor 151 to be described later is mounted on an upper surface. Two coupling holes 131 may be formed in the center at predetermined intervals in the longitudinal direction of the upper rail guide 130.

The slide member 140 may be coupled to the bottom surface of the inner wall of the upper rail guide 130. The slide member 140 is composed of a slide bearing 142 coupled to the upper rail guide 130 and having a spiral worm gear embedded therein, and a guide shaft 141 coupled to the center of the slide bearing 142. The slide bearing 142 may be moved forward and backward along the guide shaft 141 by rotating a built-in worm gear by a driving force transmitted from a driving unit to be described later. Accordingly, the slide bearing 142 may be moved together with the combined upper rail guide 130.

The seat rail part 100 may include a driving part 150. The driving unit 150 may be located on the outer surface of the slide member 140. The driving unit 150 may include a seat translation motor 151 for generating a driving force and a driving shaft 152 for transmitting the driving force to the guide shaft 141. The driving shaft 152 is rotated by the driving of the seat translation motor 151. Accordingly, the worm gear of the slide bearing 142 is rotated and the driving force is transmitted to the guide shaft 152. Accordingly, the guide shaft 141 is rotated and the upper rail guide 130 coupled with the slide bearing 142 may be moved to the front and rear of the seat. This process can be a mechanism for moving the seat forward and backward.

The seat rail part 100 may include a mounting plate 160. The mounting plate 160 may be formed in the shape of a square pillar. In addition, the mounting plate 160 may be composed of a combination of four wall surfaces. The mounting plate 160 may be located on the upper surface of the upper rail guide 130. In addition, the left and right wall surfaces may be formed to have the same length as the upper rail guide 130.

The mounting plate 160 may include a front wall portion 161. A space in which an electronic device D1 for controlling a sheet operation can be located may be formed on one surface of the front wall portion 161. In addition, grooves to which the angle control unit 200 to be described later are coupled may be formed on both sides of the installation space of the electronic device D1 formed on the front wall portion 161. Accordingly, the angle control unit 200, which will be described later, may employ a coupling method that is inserted into and coupled to the groove. In addition, an end on which the angle control unit 200 is seated may be formed in an uneven shape.

The mounting plate 160 may include a side wall portion 162. The side wall portion 162 may be configured in a symmetrical shape on the left and the right. In addition, a predetermined space may be formed on the center bottom of the side wall portion 162 so as not to interfere with the driving unit 150. Both ends of the side wall portion 162 may be formed in a shape that is fitted and coupled to the concave-convex shape of the end of the front wall portion 161.

The mounting plate 160 may include a rear wall portion 163. Both ends of the rear wall portion 163 may be formed in a shape that can be fitted into the shape of the end of the side wall portion 162. In addition, a groove to which the angle control unit 200 to be described later is coupled may be formed on the upper surface of the rear wall portion 163. Accordingly, the angle control unit 200, which will be described later, may be assembled and positioned in grooves formed above the front wall portion 161 and the rear wall portion 163.

3 is a schematic side view of a frame of the weightless seat for a vehicle shown in FIG. 1.

1 and 3, the angle control unit 200 may include an angle adjustment cylinder 210. The angle adjustment cylinder 210 may be positioned at one end coupled with a bracket of the seat rail part 100. In addition, the forelink shaft 211 may be coupled to the angle adjusting cylinder 210. Specifically, the fore link shaft 211 may be formed in a structure capable of being withdrawn from the angle adjusting cylinder 210, such as a piston. The fore link shaft 211 may be formed with one end extending to the exoskeleton part 300 to be described later. In addition, one end of the forelink shaft 211 may be connected to a bracket provided on the inner side of the lower end of the exoskeleton unit 300 to be described later. At this time, the shape of the connected end of the forelink shaft 211 may be provided in a hinge shape.

The angle control unit 200 may include a first rear link 220. The first rear link 220 is located on the bottom of the seat. The first rear link 220 may be mounted and assembled in a coupling groove provided on an upper surface of the mounting plate 160. The first rear link 220 may be formed to extend in the upper direction of the sheet. An end of the extended first rear link 220 may be implemented in a circular hinge shape. An end of the hinge-shaped first rear link 220 may be coupled to correspond to a shape of the end of the second rear link 230 to be described later. The first rear link 220 may be provided in a pair on the left and the right. In addition, the first rear link 220 may have two surfaces formed in a direction perpendicular to the vehicle floor. The two surfaces of the first rear link 220 may be horizontally positioned at a predetermined interval. In this case, a reinforcing bracket 221 may be provided in a space partitioned between two horizontal surfaces.

The angle control unit 200 may include a second rear link 230. The second rear link 230 may be formed to extend from the seat rail part 100 to the seat back A1. In addition, the second rear link 230 may be provided in a pair on the left and right sides of the seat. The end of the second rear link 230 may be implemented in a hinge shape. In addition, the first rear link 220 and the second rear link 230 are coupled to each other through an insertion structure, so that each hole formed at the end may communicate with each other. Accordingly, when the fore link shaft 211 is withdrawn, the second rear link 230 may be rotated clockwise. Accordingly, the seat back A1 is rotated in a clockwise direction, and an angle formed with the vehicle floor may be increased.

Figure 4 is a perspective view schematically showing the frame assembly structure of the exoskeleton portion and the seating portion and an enlarged view of the seating portion.

3 and 4, the weightless seat 1000 for a vehicle may include an exoskeleton part 300. The exoskeleton part 300 may have an armrest of the seat and the size and shape of the overall appearance. In addition, the exoskeleton part 300 may be formed of a furniture-like sheet. The furniture-type sheet has a simple appearance because the recliner structure configured in the conventional sheet does not appear on the exterior, and thus the aesthetics may be higher than that of the conventional automobile seat.

The exoskeleton unit 300 may be connected to the second rear link 230 of the angle control unit 200. In addition, the exoskeleton unit 300 may be coupled to the forelink shaft 211 of the angle control unit 200. When the angle adjustment cylinder 210 is driven and the forelink shaft 211 is withdrawn, the angle of the seatback A1 based on the floor surface of the vehicle may be adjusted.

The vehicle weightless seat 1000 may include a seat 400. The seating part 400 may be connected to the lower end of the exoskeleton part 300. The seating portion 400 may be composed of a seat base 410 on which an exterior of a portion on which a user is seated is formed and a seating driving portion 150 for adjusting an angle of the seating portion 400.

The seat base 410 may be formed in a rectangular plate shape. A coupling bracket 411 to which the exoskeleton part 300 can be connected may be formed on the bottom surface of the rear end of the seat base 410. The coupling brackets 411 may be provided in a pair on the left and right sides of the seat base 410. A hinge-shaped coupling hole may be formed in the coupling bracket 411. The seat base 410 and the exoskeleton part 300 may be connected with a bolt and a nut through a coupling hole.

In addition, a calf support member 412 may be provided at an end of the seat base 410. The calf support member 412 may be formed in a square plate shape. The calf support member 412 may be provided at a front end of the seat base 410. In addition, the calf support member 412 may be formed at a predetermined angle with the seat base 410. For example, the seat base 410 and the calf support member 412 may have an angle of 125° to 141°.

The seating drive unit 150 includes a servo motor 421 that generates a driving force, a flow shaft 422 that is rotated by transmitting the generated driving force, a fore link 423 in which the flow shaft 422 is rotated in a translational motion, and a seat base 410. ) May be composed of a flow hinge member 424 that is coupled to the bottom surface of the fore link 423 to form a flow section and is constrained.

The servo motor 421 of the seating drive unit 150 may be located at the lower end of the seat base 410. In addition, the servomotor 421 may be assembled and supported on a bracket connected to the inner surface of the lower end of the exoskeleton part 300. The bracket for supporting the servomotor 421 to the exoskeleton part 300 may be configured as a multi-stage link capable of adjusting the angle. Accordingly, a linked operation of the seating unit 400 with respect to the drive transmitted from the angle control unit 200 may be smoothed.

The servo motor 421 may be extended by coupling the flow shaft 422. The flow shaft 422 may be rotated according to the drive of the servo motor 421 to be withdrawn or moved. The end of the flow shaft 422 may be formed in a hinge shape that can be coupled with the fore link 423 to be described later.

Forelinks 423 may be provided on both sides of the sheet. In the present embodiment, in the case of the side on which the seating drive unit 420 is provided, a flow shaft 422 and a connection member (not shown) may be additionally provided. Accordingly, the fore link 423 may have one end coupled to the flow shaft 422 and the other end coupled to a flow hinge member 424 to be described later. The forelink 423 may be supported by a rotational central axis coupled to the exoskeleton unit 300. The fore link 423 not connected to the driving unit may be provided excluding a connection member (not shown) coupled to the flow shaft.

The flow hinge member 424 of the seating drive unit 150 may be located at the front end of the bottom surface of the seat base 410. Specifically, the flow hinge member 424 may be formed at a position in which the angle between the seat back A1 and the seat base 410 can be increased by a predetermined amount according to the driving force transmitted to the servo motor 421. The flow hinge member 424 may be combined with the seat base 410 to form a flow space in which the fore link 423, which will be described later, can be moved. In the flow space, the connected end of the forelink 423 may flow when the seating portion is moved up or down.

5 is a side view of a vehicle weightless seat 1000 showing an operation diagram for implementing a zero gravity posture.

Referring to FIGS. 1 to 5, when implementing a zero gravity posture, the seat rail part 100 slides with the driving force generated from the seat translation motor 151 to move 250 to 270 mm to the front and rear of the vehicle. Here, the body of the user seated by the moved seat may be spaced apart from the crash pad by a predetermined distance.

In addition, in the vehicle zero gravity seat 1000, the angle adjustment cylinder 210 is driven so that the forelink shaft 211 can be pulled out by a predetermined length. Accordingly, the hinge to which the first rear link 220 and the second rear link 230 are connected may be rotated by a rotation axis, and the second rear link 230 may be rotated in a clockwise direction. The rotated second rear link 230 rotates the seatback A1 clockwise to change the hip point portion of the seated person into a uniform distributed load, so that the load concentrated on the user's buttocks can be relieved. This can lead to a fatigue-reducing posture for a seated user.

The servomotor 421 rotates the flow shaft 422 so that the fore link 423 connected by drawing or drawing may be rotated. Accordingly, the angle formed by the seat base 410 and the vehicle floor may be adjusted. Accordingly, when implementing the zero-gravity posture, the angle formed between the seatback (A1) and the seating surface (A2) can be further adjusted by 5˚ to 15˚. This results in the user's abdomen

As described above, the zero-gravity seat 1000 for a vehicle according to the present embodiments enables the zero-gravity posture to be implemented through the angle control unit 200 and the seating unit 400. In particular, the weightless seat 1000 for a vehicle according to the present exemplary embodiments can be used to implement an angle of zero gravity posture with a simpler seat structure than the conventional because the recliner structure is simplified.

In the above, embodiments of the present invention have been described, but those of ordinary skill in the relevant technical field add, change, delete or add components within the scope not departing from the spirit of the present invention described in the claims. Various modifications and changes can be made to the present invention by means of the like, and it will be said that this is also included within the scope of the present invention.

100: seat rail part 110: lower rail guide
130: upper rail guide 140: slide member
151: seat translation motor 152: drive shaft
160: mounting plate 200: angle control unit
210: angle adjustment cylinder 220: first rear link 230: second rear link 300: exoskeleton unit
400: seat 410: seat base
412: calf support member 420: seating driving part
421: servo motor 423: forelink
A1: Seat back A2: Seating surface

Claims (4)

The upper rail guide 130 and the lower rail guide 110 are fixed to the floor of the vehicle and are formed in a combined structure, and the driving force is transmitted to the slide member 140 connected to the driving unit 150 to generate the driving force. Seat rail parts 130 are moved to the front and rear of the vehicle (100);
The front and rear ends of the seat rail part 100 and the left and right sides of the seat rail part 100 are combined to form a pair, and the first rear link 220 and the second rear link 230 are formed in a hinged structure to adjust the angle of the cylinder 210 An angle control unit 200 which is rotated by the driving of the vehicle and adjusts the angle between the vehicle floor and the seating surface A2;
An exoskeleton part 300 coupled to the angle control part 200 and forming an armrest of the seat and an overall size and appearance of the seat;
Consisting of a seat base 410 coupled to the lower end space of the exoskeleton part 300 and having a seating surface A2 formed thereon, and a seating driving part 420 generating a driving force for raising or lowering the seating surface A2, One end is connected by a flow shaft 422 that is rotated and drawn out by a driving force generated from the servomotor 421 of the seating drive unit 420, and the other end is connected to the flow hinge member 424 coupled to the seat base 410. The combined forelink 423 is rotated to adjust the angle of the seating surface (A2) seating portion 400; Vehicle weightless sheet comprising a.
The method according to claim 1,
The seat rail part 100 includes a lower rail guide 110 having a floor fixing member 111 fixed to a floor inside the vehicle provided on a bottom surface and having an end bent inward to form an entry space;
An upper rail guide 130 having an end portion inserted into the lower rail guide 110 and provided with a coupling space for the driving unit 150 on an upper surface;
A mounting plate 160 coupled to an upper surface of the upper rail guide 130 to form four wall surfaces and having a coupling groove of the angle control unit 200 formed thereon;
A slide member 140 comprising a slide bearing coupled to a bottom surface of the upper rail guide 130 and having a worm gear embedded therein and a guide shaft 141 coupled to the center portion;
A seat translation motor 151 for generating a driving force in which the slide member 140 moves forward and backward;
A driving shaft 152 rotated by a driving force generated from the seat translation motor 151 and interlocked with the slide member 140;
Weightless seat for a vehicle further comprising a. The method according to claim 1
The angle control unit 200 is coupled to the first rear link 220 and the second rear link 230 coupled to the upper surface of the seat rail unit 100 in a hinged connection structure to extend to the seat back (A1). A weightless seat for a vehicle that is formed and the angle of the seatback A1 is adjusted according to the driving of the angle adjusting cylinder 210. The method according to claim 1
The fore link 423 has one end connected to the flow shaft 422, a rotational center axis supported by coupling with the exoskeleton part 300, and the other end of the flow hinge member 424 coupled to the seat base 410. Vehicle weightless seat located in the formed flow space.

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