seat

Abstract

The present disclosure provides a seat. The seat includes a base frame, a side cushion frame spaced apart from each other on the left and right sides of the base frame and connected to a front hinge pipe at a front side of the side cushion frame and to a rear hinge pipe at a rear side of the side cushion frame, a seatback frame rotatably fastened to a rear end of the side cushion frame, an extension frame connected between the side cushion frame and the seatback frame, and a lifting device installed in a length direction of a mounting bracket supporting the side cushion frame, including a link member moving forward or backward due to a driving force of a driving motor, and lifting the rear hinge pipe about the front hinge pipe.

Description

[0001] Cross-references to related applications

[0002] This application claims the benefit of priority to Korean Patent Application No. 10-2024-0186420, filed with the Korean Intellectual Property Office on December 13, 2024, the entire contents of which are incorporated herein by reference. Technical Field

[0003] This disclosure relates to a folding and reclining seat. Background Technology

[0004] The vehicle's seats can be folded up to the seat cushion (e.g., to provide loading space behind the seat back) and lowered (e.g., when loading long items in the space behind / above the seat back) to lower the front of the seat cushion so that the rear surface of the folded seat back becomes horizontal.

[0005] In addition to the folding and reclining mechanism for folding the seat back, the seat may also be equipped with a tilting mechanism for tilting the seat back backward (e.g., to provide a comfortable posture for passengers to rest and / or sleep in the vehicle).

[0006] With the seat folded down and reclined, the backrest can be tilted backward via the tilt mechanism in the basic position, while the seat cushion remains in the basic position.

[0007] On the other hand, when the seat is folded and lowered, the folding and lowering mechanism can be used to lower the front of the seat cushion so that the rear surface of the seat back becomes a horizontal plane when the seat back is folded.

[0008] In this way, when the seat is folded and reclined, it is not easy to place other components at the lower front end of the seat cushion due to the characteristic that the front side of the seat cushion lowers when the seat back is folded. Furthermore, since the amount of movement that the seat cushion can move is limited, it is difficult to achieve the full-flat feature of the seat back.

[0009] Furthermore, applying a relaxation mode that allows for seat angle adjustment may require a complex component structure and an increased number of components, which could be disadvantageous in terms of cost and weight.

[0010] The content described in this background section is only intended to enhance the understanding of the background of this disclosure and should not be construed as an admission that such content corresponds to prior art known to those skilled in the art. Summary of the Invention

[0011] The following summary presents a simplified overview of certain features. This summary is not an exhaustive overview and is not intended to identify important or key elements.

[0012] Systems, apparatus, and methods for use in a seat are described. A seat may include: a base frame; a first side seat cushion frame disposed on a first side of the base frame; a second side seat cushion frame disposed on a second side of the base frame, opposite to the first side; a front hinge tube connecting the front side of the first side seat cushion frame to the front side of the second side seat cushion frame; a rear hinge tube connecting the rear side of the first side seat cushion frame to the rear side of the second side seat cushion frame; a seat back frame rotatably fastened to the rear ends of the first and second side seat cushion frames; a first extension frame connecting the first side seat cushion frame and the seat back frame; a second extension frame connecting the second side seat cushion frame and the seat back frame; and lifting devices mounted along the length of a mounting bracket supporting the first and second side seat cushion frames, wherein each lifting device includes a rotating link configured to rotate via a driving force of a drive motor to raise or lower the rear hinge tube relative to the front hinge tube.

[0013] A seat may include: a base frame; a side seat cushion frame disposed on the side of the base frame; a front hinge tube connected to the front side of the side seat cushion frame; a rear hinge tube connected to the rear side of the side seat cushion frame; a seat back frame rotatably fastened to the rear end of the side seat cushion frame; a drive motor configured to drive a lead screw to move in a forward or rearward direction; and a rotating link, a first end of which is connected to the lead screw to move together with the lead screw in a forward or rearward direction, wherein the rotating link is rotatably connected to a support at a point such that a second end of the rotating link is configured to lower or raise by rotation about that point based on the movement of the first end in the forward or rearward direction, the second end of the rotating link being opposite to the first end of the rotating link, and the second end of the rotating link being connected to the rear hinge tube.

[0014] These and other features and advantages are described in more detail below. Attached Figure Description

[0015] The above and other objects, features and advantages of this disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings:

[0016] Figure 1 A view showing the seat frame of a seat according to an example of this disclosure;

[0017] Figure 2 A view showing the operating state of the seat frame of an example seat according to this disclosure in a fully flat mode;

[0018] Figure 3A view showing the state of the seat before and after operation in a fully reclined mode according to an example of this disclosure;

[0019] Figure 4 A perspective view of a seat in a fully reclined position according to an example of this disclosure;

[0020] Figure 5 A view showing the operating state of the seat frame of a seat according to an example of this disclosure in a relaxed mode;

[0021] Figure 6 A view showing the state of the seat before and after operation in a relaxation mode according to an example of this disclosure; and

[0022] Figure 7 A perspective view of a seat in a relaxation mode according to an example of this disclosure.

[0023] Explanation of reference numerals in the attached figures

[0024] 100: Seat frame; 110: Base frame

[0025] 120: A pair of side seat cushion frames; 130: Seat back frame

[0026] 140: Extension frame 145: Tilter

[0027] 150: Mounting bracket; 160: Movable track

[0028] 165: Fixed track; 170: Front hinge tube

[0029] 175: Rear hinge tube; 180: Fixed bracket

[0030] 200: Lifting device; 210: Drive motor

[0031] 211: Gearbox 220: Lead screw

[0032] 230: Connecting rod; 240: Rotating rod

[0033] 250: Support Link Detailed Implementation

[0034] In the following, some examples of this disclosure will be described in detail with reference to the accompanying drawings. When adding reference numerals to components in the drawings, the same components will be given the same reference numerals as much as possible, even if the same components are shown in different drawings. Furthermore, when describing examples of this disclosure, such descriptions will be omitted when it is determined that a detailed description of the relevant known configurations or functions would interfere with the understanding of this disclosure.

[0035] Furthermore, in describing the components of the examples of this disclosure, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended only to distinguish one component from other components, and they do not limit the nature, order, or sequence of the components. It should be understood that when a component is “connected,” “joined,” or “engaged” to another component, the former may be directly connected or engaged to the latter, or may be “connected,” “joined,” or “engaged” to the latter if a third component is inserted between the former and the latter.

[0036] For the purposes of this application and claims, when the exemplary phrases “at least one of A; B; or C” or “at least one of A, B, or C” are used, the phrase refers to at least one A, or at least one B, or at least one C, or any combination of at least one A, at least one B, and at least one C. Furthermore, exemplary phrases such as “A, B, or C”, “at least one of A, B, and C”, and “at least one of A, B, or C” as used herein may refer to each listed item or all possible combinations of listed items. For example, “at least one of A or B” may refer to (1) at least one A; (2) at least one B; or (3) at least one A and at least one B. In this document, “one or more of…” is synonymous with “at least one of…”.

[0037] The term “about” and its grammatical equivalents, as used herein, in relation to a reference value can include the reference value itself and a range of values ​​within ±10% of that reference value. For example, the term “about 10” includes 10 and any value from 9 to 11 (inclusive). In some cases, the term “about” in relation to a reference value can also include a range of values ​​within ±10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, or 1% of that reference value. In some embodiments, “about” in relation to a number or range measured by a particular method indicates that the given value includes the value determined by the variability of that method.

[0038] Unless otherwise defined, terms used herein, including technical or scientific terms, may have the meaning commonly understood by one of ordinary skill in the art to which this disclosure pertains.

[0039] As used herein, expressions such as “contains,” “may contain,” “includes,” “may include,” “has,” and “may have” are intended to indicate the presence of features (e.g., functionality, operation, component, etc.) and do not exclude the presence of other additional features. In other words, these expressions should be understood as open-ended terms that cover the possibility of including other examples.

[0040] Unless the context otherwise requires, the singular expressions used herein may have a plural meaning, and this also applies to the singular expressions described in the claims.

[0041] As used herein, the expression “based on” is intended to describe one or more factors that influence the determination or decision of an action or operation as described in the phrase or sentence containing the expression, and the expression does not exclude any other factors that influence the determination or decision of an action or operation.

[0042] Depending on the context, the expression “configured to” as used herein can have meanings such as “set to,” “capable of,” “modified to,” “made to,” or “able to.” This expression is not limited to the meaning of “specifically designed in hardware.” For example, a processor configured to perform a specific operation can refer to a general-purpose processor capable of performing a specific operation by executing software, or a special-purpose computer constructed by programming to perform a specific operation.

[0043] The directional terms “front,” “rear,” “side,” “left,” “right,” “down,” etc., refer to directions perceived relative to a user sitting in the seat disclosed herein. The use of directional terms is for ease of understanding and does not limit the seat disclosed herein to any particular orientation or configuration. The use of directional terms does not limit the seat to being installed in a vehicle or used by a user.

[0044] As used in this specification, the terms "module" or "unit" refer to software and / or hardware components, and a "module" or "unit" performs certain operations / functions / actions. However, a "module" or "unit" is not to be construed as limited to software or hardware. A "module" or "unit" may be configured to reside in addressable storage media or to run on one or more processors. Thus, by way of example, a "module" or "unit" may include components such as software components, object-oriented software components, class components, and task components, processes, functions, properties, procedures, subroutines, program code segments, drivers, firmware, microcode, circuits, data, databases, data structures, tables, arrays, or variables. The functionality provided in a component, "module," or "unit" may be combined into a smaller number of components, "modules," or "units," or further divided into additional components, "modules," or "units."

[0045] In this disclosure, a “module” or “unit” can be implemented as a processor and a memory. “Processor” should be broadly understood to include general-purpose processors, central processing units (CPUs), microprocessors, digital signal processors (DSPs), microcontrollers, state machines, etc. In some contexts, “processor” can refer to application-specific integrated circuits (ASICs), programmable logic devices (PLDs), or field-programmable gate arrays (FPGAs). For example, “processor” can refer to a combination of processing devices, such as a combination of a DSP and a microprocessor, a combination of multiple microprocessors, a combination of one or more microprocessors incorporating DSP cores, or any other such combination. Furthermore, “memory” should be broadly understood to include any electronic component capable of storing electronic information. “Memory” can refer to various types of processor-readable media, such as random access memory (RAM), read-only memory (ROM), non-volatile random access memory (NVRAM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), flash memory, magnetic or optical data storage devices, and registers. The memory can be in electrical communication with the processor when the processor can read information from the memory and / or record information in the memory. The memory integrated into the processor is in electrical communication with the processor.

[0046] One or more features described herein can be provided as a computer program stored in a computer-readable recording medium for execution on a computer. This medium may continuously store a computer-executable program or temporarily store a program for execution or download. Furthermore, the medium can be a variety of recording or storage devices in the form of a single hardware device or multiple combined hardware devices, and is not limited to media directly connected to a computer system, but may also be distributed across a network. Examples of such media include magnetic media such as hard disks, floppy disks, or magnetic tapes configured to store program instructions; optical recording media such as CD-ROMs or DVDs; magneto-optical media such as floppy disks; and ROM, RAM, or flash memory. Other examples of such media include media or storage media managed by application stores that distribute applications or by various other sites or servers that provide or distribute software.

[0047] In a hardware implementation, the processing unit for performing the technology may be implemented in one or more ASICs, DSPs, digital signal processing devices, programmable logic devices, field-programmable gate arrays, processors, controllers, microcontrollers, microprocessors, electronic devices, or computers or combinations thereof, which are designed to perform the functions described in this disclosure.

[0048] In the following description, an example seat according to this disclosure will be described in detail with reference to the accompanying drawings.

[0049] Figure 1 A view showing the seat frame 100 of a seat according to an example of this disclosure.

[0050] Reference Figure 1 The seat frame 100 of the seat according to the present disclosure may include: a base frame 110; a pair of side cushion frames 120 spaced apart from each other and located on the left and right sides of the base frame 110 respectively; and a seat back frame 130 rotatably fastened to the rear end of the side cushion frames 120.

[0051] The base frame 110 can be configured to support a user sitting in the seat (e.g., supporting the user's hips and thighs when the user is sitting in the seat), and various cushioning structures (e.g., sponges, polyurethane, or springs installed within a soft fabric or synthetic / natural leather frame, such as plastic or metal) can be applied to the base frame 110. The base frame 110 can be a frame structure with an overall circular and / or quadrilateral shape to adequately support the user's hips and thighs.

[0052] The side seat cushion frames 120 may be spaced apart from each other by a predetermined distance (e.g., on the left and right sides of the base frame 110, respectively). The front hinge tube 170 and the rear hinge tube 175 may be connected between the side seat cushion frames 120 (e.g., connecting the side seat cushion frames 120).

[0053] The front hinge tube 170 can be mounted at the front of the side seat frame 120, and when the side seat frame 120 is raised via the rotating link 240 and the rear hinge tube 175, the front hinge tube 170 can be / act as the center of rotation.

[0054] The rear hinge tube 175 can be hinged to both the rotating link 240 and the side seat frame 120 simultaneously to assist in raising the side seat frame 120 when / if the rotating link 240 rotates.

[0055] The seat back frame 130 may be a frame structure shaped to correspond to the user's back to support the user's back. The seat back frame 130 may be hinged to the tilter 145 (e.g., tilter joint / hinge). The seat back frame 130 may have an overall circular or quadrilateral shape.

[0056] Various cushioning structures (e.g., sponges, polyurethane, or springs installed within a rigid material or frame such as plastic or metal) can be applied to the seat back frame 130. The seat back frame 130 can be interlocked to tilt in the fore-and-aft direction, for example, in a fully reclined or relaxed mode, via a tilter 145.

[0057] The extension frame 140 can be installed at the connection point between the rear end of the side seat cushion frame 120 and the lower end of the seat back frame 130. The tilter 145 can be installed at the connection point between the seat back frame 130 and the extension frame 140.

[0058] The forward and / or backward tilt angles of the seat back frame 130 can be adjusted via / through a tilter 145. For example, the seat back frame 130 can be tilted at the rear end of the side seat cushion frame 120 via / through the tilter 145. The seat back frame 130 can (e.g., manually and / or automatically by the user when / if the tilter 145 is unlocked). The seat back frame 130 can be coupled to an extension frame 140 to adjust the angle in the fore-and-aft direction via the tilter 145.

[0059] Since the side seat cushion frame 120 and the seat back frame 130 are interconnected via the extension frame 140, the side seat cushion frame 120 and the seat back frame 130 can move together while being interlocked with each other via the extension frame 140 (e.g., in the fore-aft direction).

[0060] Mounting brackets 150 supporting the side seat cushion frames 120 can be installed under each of the side seat cushion frames 120. The mounting brackets 150 can be arranged spaced apart from each other on the left and right sides of the base frame 110 (e.g., to correspond to the side seat cushion frames 120). Movable rails 160 can be installed under the mounting brackets 150.

[0061] For example, when the seat is installed in a vehicle, or if the seat is installed in a vehicle, the movable track 160 can be connected to the fixed track 165 (e.g., fixed to the vehicle floor). The movable track 160 connected to the fixed track 165 allows the seat to be moved in the fore-and-aft direction, thereby adjusting the position of the seat in the fore-and-aft direction.

[0062] For example, the side seat cushion frame 120 can be vertically connected to the rear end of the base frame 110 via a rotating link 240, and an extension frame 140 for tilting operation can be connected between the side seat cushion frame 120 and the seat back frame 130.

[0063] The first end of the extension frame 140 can be connected to the outer surface of the side seat cushion frame 120 via a hinge (not shown) when a predetermined angle is formed. The second end of the extension frame 140, opposite the first end, can be connected to the outer surface of the seat back frame 130 via a tilter 145 when a predetermined angle is formed.

[0064] The seat back frame 130 can be rotatably connected to the extension frame 140, which can be connected to the side seat cushion frame 120, so that the seat back frame 130 can be tilted by tilting in the fore-and-aft direction.

[0065] The examples of this disclosure allow for easy implementation of fully flat and / or relaxed modes by tilting the rear end of the side seat frame 120, causing the rear hinge tube 175 to move up or down relative to the front hinge tube 170.

[0066] Therefore, in the example of this disclosure, a lifting device (e.g., lifting device 200) is provided for operating the rear hinge tube 175.

[0067] The lifting device 200 may include a drive motor 210, a lead screw 220, a connecting rod 230, a rotating rod 240, and a support rod 250. The lifting device 200 may be arranged along the length of the mounting bracket 150 (e.g., extending and / or arranged generally from front to back along the length of the mounting bracket 150).

[0068] The side seat frame 120 may be equipped with a drive motor 210. The drive motor 210 may include a gearbox 211, which may include a reduction gear (e.g., a reducer) mounted on a motor shaft (not shown). The drive motor 210 may be fastened to an output gear (not shown) in the gearbox 211, such that the lead screw 220 may move forward or backward by the drive of the drive motor 210.

[0069] The lead screw 220 can be mounted on a fixed bracket 180 mounted on the base frame 110. For example, the fixed bracket 180 can be fixed to the front side of the mounting bracket 150. The fixed bracket 180 can include / form a receiving space in which the lead screw 220 can be stably received. The front end of the lead screw 220 can be hinged to the fixed bracket 180.

[0070] The drive motor 210 can be defined as a motor capable of folding and reclining the seat in a fully flat position as disclosed herein.

[0071] A tilt motor can be configured separately, which is located in / associated with the tilt motor 145 of the seat and can enable tilting function via the tilt motor 145.

[0072] Two motors can be driven simultaneously (e.g., via a rotary switch not shown). Alternatively, the swashplate motor can independently enable the swashplate 145 to tilt, and / or the user can manually enable the tilt.

[0073] The drive motor 210 used in the examples of this disclosure can be a motor capable of folding and diving functions.

[0074] The first end of the lead screw 220 can be connected to the fixed bracket 180, and the second end of the lead screw 220 opposite to the first end can be connected to the connecting rod 230.

[0075] The first end of the connecting rod 230 can be connected to the lead screw 220, and the second end of the connecting rod 230, which is opposite to the first end of the connecting rod 230, can be connected to the rotating rod 240.

[0076] The lead screw 220 can be directly connected to the rotary link 240 (for example, in the absence of a connecting link 230 between the lead screw 220 and the rotary link 240). However, connecting the lead screw 220 to the connecting link 230 allows for more efficient operation.

[0077] The first end of the rotating link 240 can be connected to the connecting link 230, and the second end of the rotating link 240 opposite to the first end can be connected to the rear hinge tube 175. Since the rear hinge tube 175 is hinged between a pair of side seat cushion frames 120 that are spaced apart from each other, the side seat cushion frames 120 can be linked by tilting the rotating link 240.

[0078] The first end of the support link 250 can be connected to a point on the rotating link 240 between the first and second ends of the rotating link 240 (e.g., connected to the middle of the rotating link 240). The second end of the support link 250, opposite to the first end of the support link 250, can be rotatably connected to the inner surface of the mounting bracket 150. The support link 250 and the rotating link 240 can have the same direction of travel.

[0079] The seat according to the example of this disclosure can achieve a fully flat mode when adjusting the forward fold of the seat back / if adjusting the forward fold of the seat back, and can achieve a relaxed mode when adjusting the rearward tilt of the seat back.

[0080] The fully reclined and / or relaxed modes of the seat can be executed by the lifting device 200, which includes a drive motor 210, a lead screw 220, and a linkage component. The linkage component includes a connecting link 230, a rotating link 240, and a supporting link 250. The drive motor 210 and the lead screw 220 are connected to the linkage component.

[0081] The lead screw 220 can be fastened to the output gear (not shown) in the gearbox 211 of the drive motor 210. Thus, the lead screw 220 can move forward or backward by the movement of the output gear driven by the drive motor. The connecting rod 230 can be fastened to the rear side of the lead screw 220 (e.g., the second end of the lead screw 220 opposite to the first end of the lead screw 220 fastened to the output gear) to move forward or backward.

[0082] The rotating link 240, which is connected to the rear side (e.g., the second end) of the connecting link 230, can be hinged to the mounting bracket 150 via / through the support link 250, and can also be hinged to the side seat frame 120 via the rear hinge tube 175.

[0083] Therefore, when the lead screw 220 (e.g., due to the drive of the drive motor 210) moves forward, the first end (e.g., the front end) of the rotating link 240 can be pulled forward, the second end (e.g., the rear end) of the rotating link 240 can be lowered, and at the same time, the rotating link 240 can be held / positioned in a generally horizontal state by means of / via the support link 250 (see example). Figure 5 ).

[0084] When the lead screw 220 (e.g., due to the drive of the drive motor 210) moves backward / if the lead screw 220 (e.g., due to the drive of the drive motor 210) moves backward, the first end (e.g., the front end) of the rotating link 240 can be pushed backward, the second end (e.g., the rear end) of the rotating link 240 can be raised, and at the same time, the rotating link 240 can be held / positioned in a generally vertical state by means of / via the support link 250 (see example). Figure 2 ).

[0085] The following describes the operation procedures for the fully reclined and relaxed modes of the seat disclosed in this article.

[0086] Figure 2 A view showing the operating state of the seat frame of the seat according to an example of this disclosure in its fully reclined mode. Figure 3 To illustrate the state of the seat before and after operation in the fully reclined mode according to the example of this disclosure, Figure 4 A perspective view of a seat in a fully reclined mode according to an example of this disclosure.

[0087] Referring to the accompanying drawings, before the seat frame 100 is fully reclined (e.g., in upright mode), the side seat cushion frame 120 can be kept in a horizontal position, and the rotation link 240 that controls the posture of the side seat cushion frame 120 can also be kept in a generally horizontal position.

[0088] The rotating link 240 can be configured to tilt upwards (e.g., towards the rear at a predetermined angle). The first end of the support link 250, which is connected to the rotating link 240 at the middle between the first and second ends of the rotating link 240, can be configured to tilt upwards towards the front at a predetermined angle. That is, the second ends of the rotating link 240 and the support link 250 can be spaced apart from each other towards the rear at a predetermined angle (e.g., the apex of this angle is the connection point between the first end of the support link 250 and the middle / point of the rotating link 240).

[0089] Reference Figure 3 In the first figure, before the forward folding operation of the seat back frame 130 and the extension frame 140 (e.g., in the upright position and / or the reclined position), the seat back frame 130 and the extension frame 140 can be arranged in a generally straight line with a predetermined angle toward the rear.

[0090] When a user selects (e.g., by operating a rotary switch and / or providing input to the vehicle's interface) to implement folding and reclining functions (e.g., including forward folding of the seat back and reclining of the seat cushion), the controller (e.g., a control device, control computing device, control panel, not shown) can be configured to receive a signal indicating the selection (e.g., receiving input via the interface, receiving a switch signal from the rotary switch, etc.). The controller can perform control operations based on the received signals to apply current to the drive motor 210. For example, the controller can apply a control signal based on the received selection signal to cause the application of current and / or apply current. The control operations can drive the drive motor 210. A separate motor for the forward folding operation of the seat back can operate additionally or optionally with the drive motor 210, and / or the user can perform the forward folding operation (e.g., manually).

[0091] The controller may include communication devices that communicate with other controllers and / or sensors / user interfaces to control one or more functions and / or operations under its responsibility, memory that stores the operating system, logic commands, and / or input / output information, and / or one or more processors that perform the determination, calculation, and / or decision-making required to perform the functions under its responsibility. The controller may include, for example, a processor, central processing unit (CPU), microchip, logic, application-specific integrated circuit (ASIC), memory, etc. The controller may manipulate and / or control other components in the system (e.g., drive motor 210), for example, by applying current to drive motor 210 and / or causing the application of current to drive motor 210 to cause drive motor 210.

[0092] When the lead screw 220 (e.g., according to / based on the drive of the drive motor 210) moves backward, the lead screw 220 can push the connecting link 230 backward and correspondingly push the rotating link 240 backward (e.g., push the first end of the rotating link 240 backward). As the rotating link 240 and the support link 250 move backward, the second end (e.g., the rear end) of the rotating link 240 can be raised while rotating about the hinge fastening point with the support link 250.

[0093] When the second end (e.g., the rear end) of the rotating link 240 (e.g., by rotation) is raised, the rear end of the side seat cushion frame 120, to which the rear hinge tube 175 is connected, can be raised together with the rear hinge tube 175 to which the rotating link 240 is connected. This operation allows the seat back frame 130 to be fully flattened.

[0094] The seat back frame 130 may have a small rotation angle with respect to the extension frame 140, thereby limiting the amount of rotation (e.g., forward folding rotation) of the seat back frame 130. As the second end (e.g., the rear end) of the side cushion frame 120 is raised, the rear surface of the seat back can be further oriented in a horizontal state, such that the seat back frame 130 can be realized in a fully flat mode without, for example, lowering the pads formed as bulges on the opposite sides of the seat back.

[0095] Figure 5 A view showing the operating state of the seat frame in a relaxed mode according to an example of this disclosure. Figure 6 To illustrate the state of the seat in relaxation mode before and after operation according to an example of this disclosure, Figure 7 A perspective view of a seat in a relaxation mode according to an example of this disclosure.

[0096] Referring to the accompanying drawings, before the seat frame 100 is in a relaxed mode (e.g., in an upright mode), the side seat cushion frame 120 can be held in a horizontal position. The rotation link 240, which controls the posture of the side seat cushion frame 120, can be in a generally horizontal position.

[0097] The rotating link 240 can be configured to tilt upwards at a predetermined angle toward the rear of the seat. The first end of the support link 250, which is connected to the middle of the rotating link 240 (e.g., between the first and second ends of the rotating link 240), can be configured to tilt upwards at a predetermined angle toward the front. That is, the second ends of the rotating link 240 and the support link 250 can be spaced apart from each other at a predetermined angle toward the rear.

[0098] Reference Figure 6In the first figure, prior to the rearward tilting operation of the seat back frame 130 and the extension frame 140, the seat back frame 130 and the extension frame 140 can be arranged in a generally straight line with a predetermined angle toward the rear.

[0099] When a user selects (e.g., operates a rotary switch and / or provides input to the vehicle's interface, etc.) to perform a relaxation operation of the seat frame 100, the controller (not shown) can receive signals (e.g., receive input via the interface, receive a switch signal from the rotary switch, etc.). The controller can perform control to apply current to the drive motor 210, thereby driving the drive motor 210. For example, the controller can send control signals to cause the application of current to the drive motor 210 and / or apply current to the drive motor 210. A separate / secondary motor for the reclining operation of the seat back can also operate in conjunction with the control of the drive motor 210, and / or the user can perform the reclining operation (e.g., manually).

[0100] When the connecting link 230 and the rotating link 240 (e.g., moving forward via the lead screw 220 according to the drive of the drive motor 210) are pulled forward, the rotating link 240 and the supporting link 250 can move forward accordingly. The angle between the rotating link 240 and the supporting link 250 can be reduced. Therefore, the rear end of the rotating link 240 can be lowered while rotating about the hinge fastening point with the supporting link 250.

[0101] When the second end (e.g., the rear end) of the rotating link 240 (e.g., in the case of rotation about the hinge fastening point / by rotation about the hinge fastening point) is lowered, the rear side of the side seat frame 120 connected to the rear hinge tube 175, together with the rear hinge tube 175 to which the rotating link 240 is connected, can be lowered. Therefore, the rear end of the side seat frame 120 can (e.g., with respect to the front end of the side seat frame 120) tilt downwards.

[0102] When the seat back frame 130 is tilted back, the rear end of the side seat cushion frame 120 can tilt downwards, so body pressure can be easily distributed to the user's buttocks and thighs. Therefore, by preventing the increase of fatigue in the lower body, a comfortable relaxation mode can be achieved for the user.

[0103] This disclosure is made to address the aforementioned problems in the prior art while retaining the advantages of the prior art.

[0104] Examples of this disclosure provide a seat that can achieve a fully flat mode when adjusting the forward folding of the seat back and a relaxed mode when adjusting the backward tilt.

[0105] The technical problems to be solved by this disclosure are not limited to those described above, and any other technical problems not mentioned herein will be clearly understood by those skilled in the art from the following description.

[0106] This disclosure provides a seat that can achieve a fully flat mode when adjusting the folding of the seat back and a relaxed mode when adjusting the tilt.

[0107] According to an example of this disclosure, a seat includes: a base frame; side seat cushion frames spaced apart from each other on the left and right sides of the base frame, and connected to a front hinge tube on the front side of the side seat cushion frames and to a rear hinge tube on the rear side of the side seat cushion frames; a seat back frame rotatably fastened to the rear end of the side seat cushion frames; an extension frame connected between the side seat cushion frames and the seat back frame; and a lifting device mounted in the longitudinal direction of a mounting bracket supporting the side seat cushion frames, including a linkage member that moves forward or backward due to the driving force of a drive motor, and lifting the rear hinge tube about the front hinge tube.

[0108] According to examples of this disclosure, the lifting device may include: a lead screw, fastened to move forward or backward by a drive motor; a connecting rod connected to the lead screw; and a rotating link, hinged to the connecting rod and the rear hinge tube, and raised or lowered by rotating the rear end of the rotating link by the forward or backward movement of the lead screw.

[0109] According to an example of this disclosure, the seat may further include: a support link, one end of which is connected to the middle end of a rotating link to have the same direction of travel as the rotating link, and the other end of which is rotatably connected to the inner surface of a mounting bracket.

[0110] According to an example of this disclosure, one end of the rotating link can be hinged to a connecting link, the other end of the rotating link is hinged to a rear hinge tube, and the middle end of the rotating link is hinged to a support link rotatably supported by a mounting bracket.

[0111] According to an example of this disclosure, the rotating link can be connected to the mounting bracket via a support link hinge, and the rotating link can be connected to the side seat frame via a rear hinge tube hinge.

[0112] According to the examples of this disclosure, before the fully flattened mode and the relaxed mode, the rotating link can be set to tilt upward at a predetermined angle toward the rear, the support link can be set to tilt upward at a predetermined angle toward the front, and the rotating link and the support link can be kept in a state where they are spaced apart from each other by a predetermined angle toward the rear.

[0113] According to an example of this disclosure, in a fully flat mode, the rear end of the side seat frame can be raised together with the rear hinge tube while the rear end of the rotating link rotates about the hinge fastening point with the support link.

[0114] According to an example of this disclosure, in the relaxed mode, the rear end of the side seat frame can be lowered together with the rear hinge tube while the rear end of the rotating link rotates about the hinge fastening point with the support link.

[0115] According to an example of this disclosure, the lead screw can be hinged to a fixed bracket, which is mounted on a base frame and has a receiving space for the lead screw.

[0116] According to the seat disclosed herein, when the seat back is adjusted to fold forward, a fully flat mode can be achieved, and when it is adjusted to recline backward, a relaxed mode can be achieved.

[0117] Regardless of the position of the seat back, the seat cushion can be tilted independently, allowing the user to achieve the desired relaxing posture.

[0118] When the seat back is fully reclined, it can be used as a table.

[0119] The foregoing description of this disclosure is for illustrative purposes only. Those skilled in the art will understand that this disclosure can be readily modified into other specific forms without altering its technical spirit or essential characteristics. Therefore, it should be understood that the above examples are illustrative in all respects and not restrictive. The scope of this disclosure is defined by the appended claims, and all variations or modifications derived from the meaning and scope of the appended claims and their equivalents should be understood to be included within the scope of this disclosure.

Claims

1. A seat, comprising: Base frame; A first side seat cushion frame is disposed on the first side of the base frame; A second side seat frame is disposed on the second side of the base frame, and the second side is opposite to the first side; A front hinge tube connects the front side of the first side seat frame to the front side of the second side seat frame; The rear hinge tube connects the rear side of the first side seat frame to the rear side of the second side seat frame; The seat back frame is rotatably fastened to the rear ends of the first side seat cushion frame and the second side seat cushion frame; A first extension frame connects the first side seat cushion frame and the seat back frame; The second extension frame connects the second side seat cushion frame and the seat back frame; as well as A lifting device is installed along the length of a mounting bracket, which supports a first side seat frame and a second side seat frame. Each lifting device includes a rotating link, which rotates via the driving force of a drive motor to raise or lower the rear hinge tube relative to the front hinge tube.

2. The seat according to claim 1, wherein, Each of the lifting devices includes: The lead screw moves forward or backward via the driving force of the drive motor; and A connecting rod, the first end of which is connected to the lead screw. The first end of the rotating link is hinged to the second end of the connecting link, and the second end of the connecting link is opposite to the first end of the connecting link. The second end of the rotating link is connected to the rear hinge tube and is raised or lowered based on the movement of the lead screw driven by the drive motor.

3. The seat according to claim 2, further comprising: Support link, The first end of the support link is connected to the point between the first and second ends of the rotating link, and The second end of the support link is rotatably connected to the inner surface of the first mounting bracket in the mounting bracket, and the second end of the support link is opposite to the first end of the support link.

4. The seat according to claim 3, wherein, The second end of the rotating link is hinged to the rear hinge tube, and The support link is hinged to the rotating link at the point via a hinge at the point.

5. The seat according to claim 3, wherein, The rotating link is hinged to the first mounting bracket via the support link and to the first side seat frame via the rear hinge tube.

6. The seat according to claim 4, wherein, The seat is adjustable between multiple configuration modes, including an upright mode, in which: The rotating link is configured to tilt upward toward the rear side of the seat, and the supporting link is configured to tilt upward toward the front side of the seat, such that the rotating link and the supporting link form a first predetermined angle toward the rear side of the seat at the hinge.

7. The seat according to claim 6, wherein, The plurality of configuration modes further include a fully flat mode, in which: The rotating link and the supporting link form a second predetermined angle at the hinge toward the rear side of the seat. The second predetermined angle is greater than the first predetermined angle, such that the second end of the rotating link raises the rear ends of the first side seat frame and the second side seat frame by raising the rear hinge tube.

8. The seat according to claim 6, wherein, The plurality of configuration modes further includes a relaxation mode, in which: The rotating link and the supporting link form a third predetermined angle at the hinge toward the rear side of the seat. The third predetermined angle is smaller than the first predetermined angle, so that the second end of the rotating link lowers the rear ends of the first side seat frame and the second side seat frame by lowering the rear hinge tube.

9. The seat according to claim 2, wherein, The lead screw is hinged to a fixed bracket, which is mounted on the base frame and forms a receiving space for the lead screw.

10. A seat, comprising: Base frame; A side seat frame is provided on the side of the base frame; The front hinge tube is connected to the front side of the side seat frame; The rear hinge tube is connected to the rear side of the side seat cushion frame; The seat back frame is rotatably fastened to the rear end of the side seat cushion frame; The drive motor drives the lead screw to move forward or backward. as well as A rotating link, the first end of which is connected to the lead screw, moves together with the lead screw in the forward direction or the backward direction, wherein... The rotating link is rotatably connected to the support at a point such that the second end of the rotating link is lowered or raised by rotation about the point based on the movement of the first end in the forward or backward direction. The second end of the rotating link is opposite to the first end of the rotating link. The second end of the rotating link is connected to the rear hinge tube.

11. The seat according to claim 10, further comprising: An extension frame connects the side seat cushion frame to the seat back frame.

12. The seat according to claim 10, further comprising: Connecting rod, The first end of the connecting rod is connected to the lead screw, and The second end of the connecting rod is hinged to the first end of the rotating rod.

13. The seat according to claim 10, wherein, The support member includes a support link. The first end of the support link is rotatably connected to the rotating link at the specified point, and The second end of the support link is connected to the base frame, and the second end of the support link is opposite to the first end of the support link.

14. The seat according to claim 13, wherein, The angle formed between the support link and the rotating link increases as the lead screw moves backward or decreases as the lead screw moves forward.

15. The seat according to claim 14, further comprising: The control device receives control input and applies current to the drive motor to move the lead screw based on the control input.

16. The seat according to claim 15, wherein, The control input indicates the selection of one of the following modes: upright mode, fully flat mode, and relaxed mode.

17. The seat according to claim 16, wherein, The control device applies current to the drive motor to move the lead screw to a position with an angle of a first predetermined angle, based on the control input indicating the upright mode.

18. The seat according to claim 17, wherein, The control device applies a current to the drive motor to move the lead screw to a position at a second predetermined angle, based on a control input indicating the fully flattened mode, wherein the second predetermined angle is greater than the first predetermined angle.

19. The seat according to claim 17, wherein, The control device applies a current to the drive motor to move the lead screw to a position at a third predetermined angle, based on a control input indicating the relaxation mode, wherein the third predetermined angle is less than the first predetermined angle.

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