Concealable foot support, seat and vehicle

Abstract

The utility model discloses a concealable foot support, a seat and a vehicle, and belongs to the field of automobile interiors. The foot support capable of being hidden comprises a guide rail, a foot support body, a fixing base, a motor and a transmission mechanism. The guide rail is used for being installed at the bottom of a seat and guiding the foot support body to stretch out of or retract into the bottom of the seat from the bottom of the seat. The foot support body is mounted on the guide rail in a sliding manner; the fixed seat is mounted at the bottom of a seat and serves as a mounting base of the motor and the transmission mechanism; the transmission mechanism is in transmission connection with the foot support body and the motor and comprises a worm, a rack, a gear and a plane connecting rod mechanism. When the foot support body retracts to the bottom of the seat, the effects of hiding and saving space can be achieved. The transmission mechanism integrates a worm gear pair, a gear rack pair and a plane connecting rod mechanism, has the advantages of being compact in structure, stable in transmission ratio, high in bearing capacity and stable in work, and can be conveniently arranged in a narrow space at the bottom of a seat.

Description

Technical Field

[0001] The present application relates to the field of automobile interior decoration, and in particular to a concealable footrest, a seat and a vehicle. Background Art

[0002] At present, as a common seat accessory, the seat footrest of the car generally adopts a rotating and folding design. However, this design exposes some problems in actual use.

[0003] When the footrest is not opened, it is usually folded and placed behind the seat. This design seems to save space on the surface, but in fact it causes a lot of squeeze on the passenger's legroom. Especially for those passengers with tall stature or long legs, this design will undoubtedly make them feel cramped and uncomfortable when riding.

[0004] The footrest folded behind the seat is also not aesthetically pleasing. Due to the footrest, the area behind the seat looks relatively messy and lacks a sense of neatness. For car owners who pursue interior quality, this design obviously cannot meet their aesthetic needs.

[0005] In addition, when the footrest is in a folded state, its appearance is usually more prominent and easily becomes the visual focus of the interior space of the vehicle, thereby reducing the overall coordination and aesthetics of the vehicle interior. Utility Model Content

[0006] In view of this, the purpose of the present application is to provide a concealable footrest, a seat and a vehicle to at least solve the above technical problems in the prior art.

[0007] In the first aspect, the present application provides a concealable footrest, comprising a guide rail, a footrest body, a fixed seat, a motor, and a transmission mechanism; the guide rail is used to be installed on the bottom of the seat to guide the footrest body to extend from or retract to the bottom of the seat; the footrest body is slidably mounted on the guide rail; the fixed seat is used to be installed on the bottom of the seat, serving as an installation base for the motor and the transmission mechanism; the motor is used to provide power to drive the footrest body to slide; the transmission mechanism is connected to the footrest body and the motor, the transmission mechanism includes a worm, a rack, a gear, and a planar connecting rod mechanism, the worm is coaxially connected to the output shaft of the motor, the rack is parallel to the worm and is linearly movably arranged on the fixed seat, the gear is rotatably arranged on the fixed seat and meshes with the worm and the rack, and the planar connecting rod mechanism connects the footrest body, the fixed seat, and the rack, and is used to convert the movement of the rack into movement of the footrest body relative to the fixed seat.

[0008] In combination with the first aspect, in some optional embodiments, a guide groove is provided on the rack along the extension direction; the transmission mechanism also includes a plurality of guide pins, and the rack is set on the fixed seat by passing through the guide groove, and the plurality of guide pins are distributed along the guide groove and cooperate with the guide groove.

[0009] In combination with the first aspect, in some optional embodiments, the planar linkage mechanism includes a first link and a second link, one end of the first link is rotatably connected to the foot rest body, the other end of the first link is rotatably connected to one end of the second link, the other end of the second link is rotatably connected to a fixed seat, and the middle part of the second link is rotatably connected to the rack.

[0010] In combination with the first aspect, in some optional embodiments, the cross-section of the guide rail is groove-shaped, there are two guide rails, the two guide rails are arranged in parallel with the grooves, and the two side edges of the foot rest body are slidably embedded in the two guide rails.

[0011] In combination with the first aspect, in some optional embodiments, the fixing seat is arranged at a position a certain distance away from the foot rest body in the direction in which the foot rest body retracts.

[0012] In combination with the first aspect, in some optional embodiments, the output shaft of the motor is perpendicular to the extension direction of the guide rail.

[0013] In a second aspect, the present application further provides a seat, comprising a hideable footrest according to any one of the embodiments of the first aspect above, mounted on the bottom of the seat.

[0014] In combination with the second aspect, in some optional embodiments, the footrest body of the hideable footrest extends in a direction toward the rear of the seat, and retracts in a direction toward the front of the seat.

[0015] In combination with the second aspect, in some optional embodiments, the footrest body of the hideable footrest extends in a direction toward the front of the seat, and retracts in a direction toward the rear of the seat.

[0016] In a third aspect, the present application further provides a vehicle, comprising a seat in any one of the embodiments of the second aspect.

[0017] Based on the above technical scheme, the hideable footrest, seat and vehicle provided by the present application arrange the footrest body at the bottom of the seat, and through motor drive, transmission mechanism transmission, and guide rail guidance, the footrest body can be extended from the bottom of the seat or retracted to the bottom of the seat. When the footrest body is retracted to the bottom of the seat, the effect of hiding and saving space can be achieved. The transmission mechanism integrates a worm gear pair, a gear rack pair, and a planar connecting rod mechanism, and has the advantages of compact structure, stable transmission ratio, strong load-bearing capacity, and smooth operation, and can be conveniently arranged in the narrow space at the bottom of the seat. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a concealable footrest provided in an embodiment of the present application from a top-down perspective.

[0020] Figure 2 A bottom-up schematic diagram of a hideable footrest provided in an embodiment of the present application.

[0021] Figure 3 for Figure 2 A partial enlarged view of point A in the middle.

[0022] Figure 4 A schematic diagram of the structure of a hideable footrest at the bottom of a seat provided in an embodiment of the present application.

[0023] Figure numerals: 1. seat bracket; 2. seat; 100. concealable footrest; 10. guide rail; 20. footrest body; 30. fixing seat; 40. motor; 50. transmission mechanism; 51. worm; 52. rack; 521. guide groove; 53. guide pin; 54. gear; 55. planar linkage mechanism; 551. first connecting rod; 552. second connecting rod. DETAILED DESCRIPTION

[0024] The specific embodiments of the present application will be described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the description of the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0025] In the description of this application, unless otherwise clearly specified and limited, the terms "connection", "setting", "installation", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be that two elements are internally connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0026] The terms "upper", "lower", "left", "right", "front", "back", "center", "top", "bottom", "inside", "outside", "vertical", "horizontal", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the accompanying drawings, or are the orientation or position relationship commonly placed when the product of the application is used. They are only for the convenience of description and simplified description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0027] The terms “first”, “second”, “third”, etc. are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order, unless expressly specified and limited otherwise.

[0028] The terms "comprises," "includes," "has," or any other variation thereof, are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprises a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0029] The term "plurality" means two or more (including two).

[0030] The term "and / or" is merely a description of the association relationship between associated objects, indicating that three possible relationships may exist. For example, A and / or B may represent three situations: A exists alone, A and B exist at the same time, and B exists alone.

[0031] The terms "one embodiment", "as an example", "in one implementation", etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example may be included in at least one embodiment or example of the present application. Schematic representations of such terms do not necessarily refer to the same embodiment, nor are they independent or alternative embodiments that are mutually exclusive with other embodiments. In the absence of conflict, the embodiments in the present application and the features in the embodiments may be combined in a suitable manner.

[0032] Figure 1 This is a schematic diagram of the structure of a concealable footrest 100 provided in an embodiment of the present application from a top view. Figure 2 A bottom-up schematic diagram of a hideable footrest 100 provided in an embodiment of the present application.

[0033] See also Figure 1 and Figure 2 An embodiment of the present application provides a hideable footrest 100 , which includes a guide rail 10 , a footrest body 20 , a fixing seat 30 , a motor 40 , and a transmission mechanism 50 .

[0034] The guide rail 10 is used to be installed at the bottom of the seat to provide guidance and support for the footrest body 20 .

[0035] The footrest body 20 is slidably mounted on the guide rail 10 , and one direction of the footrest body 20 sliding is a direction of extending from the seat bottom, and the other direction (referring to the opposite direction) is a direction of retracting into the seat bottom.

[0036] In one embodiment, if Figure 1 As shown, the cross section of the guide rail 10 is groove-shaped, and there are two guide rails 10. The two guide rails 10 are arranged in parallel with the grooves and are respectively installed on the seat bracket 1 at both sides of the seat bottom, and the two sides of the footrest body 20 are respectively slidably embedded in the two guide rails 10. This arrangement ensures the stability and smoothness of the footrest body 20 when sliding, and at the same time, the structure is more compact and space-saving.

[0037] It is understandable that the guide rail 10 can be used as a part of the seat frame 1 and can be integrally formed with the seat frame 1 . This structure can reduce the steps of installing the guide rail 10 .

[0038] The fixing base 30 is used to be installed at the bottom of the seat and serves as a mounting base for the motor 40 and the transmission mechanism 50 .

[0039] In one embodiment, the fixing seat 30 is arranged at a certain distance from the footrest body 20 in the direction in which the footrest body 20 is retracted to the bottom of the seat, so as to meet the arrangement requirements of the planar linkage mechanism 55 of the transmission mechanism 50 and ensure that the planar linkage mechanism 55 will not be interfered or restricted when working normally. The fixing seat 30 is in the shape of a plate, and both sides are fixedly connected to the seat bracket 1 on both sides of the bottom of the seat.

[0040] The fixing seat 30 can also be used as a part of the seat support 1 and formed integrally with the seat support 1 . This structure can reduce the steps of installing the fixing seat 30 .

[0041] The motor 40 is in transmission connection with the footrest body 20 through the transmission mechanism 50. The motor 40 is used to provide power to drive the footrest body 20 to slide. The transmission mechanism 50 is used to transmit the power of the motor 40 to the footrest body 20 to realize the extension and retraction functions of the footrest body 20.

[0042] In one embodiment, the motor 40 is mounted on the fixed seat 30 via a motor seat. The output shaft of the motor 40 is perpendicular to the extension direction of the guide rail 10, so that the motor 40 and the transmission mechanism 50 can be arranged more compactly, saving space at the bottom of the seat. The motor 40 can be electrically connected to the electronic control unit (ECU) of the vehicle and can be manually controlled by setting a corresponding control switch. A reducer can be configured on the motor 40 to meet application requirements such as reducing the speed, increasing the output energy, reducing the motor load, improving the mechanical stability, and reducing the noise.

[0043] like Figure 2 and Figure 3 As shown, the transmission mechanism 50 includes a worm 51 , a rack 52 , a plurality of guide pins 53 , a gear 54 , and a planar linkage mechanism 55 .

[0044] The worm 51 is coaxially connected to the output shaft of the motor 40 .

[0045] The rack 52 is linearly movable on the fixing base 30 , and a guide groove 521 is provided on the rack 52 along the extension direction.

[0046] A plurality of guide pins 53 are passed through the guide grooves 521 to set the rack 52 on the fixing seat 30 . The plurality of guide pins 53 are distributed along the guide grooves 521 and cooperate with the guide grooves 521 , so that the rack 52 can stably move linearly under the guidance of the guide pins 53 .

[0047] The gear 54 is rotatably mounted on the fixed seat 30 and meshes with the worm 51 and the rack 52. The gear 54 improves the transmission ratio by cooperating with the worm 51 to achieve a deceleration effect. The rack 54 ensures the accuracy, efficiency, and stability of the transmission by cooperating with the rack 52.

[0048] The worm 51 and the rack 52 can be arranged in parallel. Such an arrangement can ensure that the worm 51, the gear 54 and the rack 52 mesh correctly and transmit motion and power, and the structure is more compact and space-saving.

[0049] Among them, the gear 54 and the worm 51 constitute a worm gear pair, which has the characteristics of a large transmission ratio and a certain self-locking property. The tooth profiles of the worm 51 and the gear 54 are customized to ensure that they can properly mesh and transmit motion and power. This meshing method can transmit at a specific transmission ratio to achieve the effect of reducing speed and increasing torque, and at the same time meet the requirements of spatial layout. The gear 54 and the rack 52 constitute a gear rack pair, which has the advantages of high transmission efficiency, high transmission accuracy, strong stability, and easy maintenance. The transmission mechanism 50 combines the advantages of these two transmission pairs, and the overall structure is very compact, which improves space utilization and is convenient to be arranged in the narrow space at the bottom of the seat.

[0050] The planar linkage mechanism 55 connects the footrest body 20 , the fixing seat 30 , and the rack 52 . The planar linkage mechanism 55 is used to convert the movement of the rack 52 into the movement of the footrest body 20 relative to the fixing seat 30 .

[0051] In one embodiment, the planar link mechanism 55 includes a first link 551 and a second link 552. One end of the first link 551 is rotatably connected to the width center line of the footrest body 20, and the other end of the first link 551 is rotatably connected to one end of the second link 552. The other end of the second link 552 is rotatably connected to the width center line of the fixing seat 30, and the middle part of the second link 552 is rotatably connected to one end of the rack 52.

[0052] The working principle of the transmission mechanism 50 is as follows: when the worm 51 is driven by the motor 40 to rotate, the worm 51 drives the gear 54 to rotate, and the gear 54 drives the rack 52 to perform linear motion. Then, the rack 52 drives the planar linkage mechanism 55 to perform motion. Specifically, the rack 52 drives the second link 552 to move, so that the angle between the first link 551 and the second link 552 changes, and then the first link 551 drives the footrest body 20 to slide along the guide rail 10.

[0053] When the angle between the first link 551 and the second link 552 increases, the footrest body 20 can be extended from the bottom of the seat driven by the first link 551 to provide foot support for the person. When the angle between the first link 551 and the second link 552 decreases, the footrest body 20 can be retracted to the bottom of the seat driven by the first link 551 to achieve the effect of hiding and saving space.

[0054] Figure 4 This is a schematic structural diagram of a concealable footrest 100 at the bottom of a seat 2 provided in an embodiment of the present application.

[0055] The embodiment of the present application further provides a seat 2 , which includes the above-mentioned hideable footrest 100 , and the hideable footrest 100 is installed at the bottom of the seat 2 .

[0056] In one embodiment, if Figure 4 As shown, the direction in which the footrest body 20 extends from the bottom of the seat 2 is the rearward direction of the seat 2 , and the direction in which the footrest body 20 retracts into the bottom of the seat 2 is the forward direction of the seat 2 . The footrest body 20 can be used by passengers located behind the seat 2 .

[0057] It is understandable that, according to actual needs, the extending direction of the footrest body 20 can be adjusted to the forward direction of the seat 2, and the retracting direction of the footrest body 20 can be adjusted to the rearward direction of the seat 2, so that the footrest body 20 can be used by passengers sitting on the seat 2.

[0058] An embodiment of the present application also provides a vehicle, which includes the above-mentioned seat 2.

[0059] In summary, the concealable footrest, seat and vehicle provided in the embodiments of the present application have the footrest body arranged at the bottom of the seat, and are driven by a motor, driven by a transmission mechanism, and guided by a guide rail, so that the footrest body can be extended from the bottom of the seat or retracted into the bottom of the seat. When the footrest body is retracted into the bottom of the seat, the effect of hiding and saving space can be achieved. The transmission mechanism integrates a worm gear pair, a rack and pinion pair, and a planar connecting rod mechanism, and has the advantages of compact structure, stable transmission ratio, strong load-bearing capacity, and smooth operation, and can be conveniently arranged in the narrow space at the bottom of the seat.

[0060] The above description is only a specific implementation mode of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the field can easily think of various changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application.

Claims

1. A concealable footrest, characterized in that: It includes a guide rail, a footrest body, a fixing seat, a motor, and a transmission mechanism; The guide rail is used to be installed at the bottom of the seat to guide the footrest body to extend from the bottom of the seat or retract into the bottom of the seat; The footrest body is slidably mounted on the guide rail; The fixing seat is used to be installed at the bottom of the seat, serving as a mounting base for the motor and the transmission mechanism; The motor is used to provide power to drive the footrest body to slide; The transmission mechanism is connected to the footrest body and the motor, and the transmission mechanism includes a worm, a rack, a gear, and a planar connecting rod mechanism. The worm is coaxially connected to the output shaft of the motor, The rack is parallel to the worm and can be linearly moved on the fixed seat. The gear is rotatably disposed on the fixed seat and meshes with the worm and the rack. The planar linkage mechanism connects the footrest body, the fixing seat, and the rack, and is used for converting the movement of the rack into the movement of the footrest body relative to the fixing seat.

2. The concealable footrest according to claim 1, characterized in that: The rack is provided with a guide groove arranged along the extension direction; The transmission mechanism also includes a plurality of guide pins, The rack is arranged on the fixing seat by passing through the guide groove by a plurality of guide pins. The plurality of guide pins are distributed along the guide groove and cooperate with the guide groove for guidance.

3. The concealable footrest according to claim 1, characterized in that: The planar linkage mechanism comprises a first link and a second link. One end of the first connecting rod is rotatably connected to the footrest body, and the other end of the first connecting rod is rotatably connected to one end of the second connecting rod. The other end of the second connecting rod is rotatably connected to the fixing seat, and the middle part of the second connecting rod is rotatably connected to the rack.

4. The concealable footrest according to claim 1, characterized in that: The cross section of the guide rail is groove-shaped, the number of the guide rails is two, and the two guide rails are arranged parallel to each other with grooves. The two side edges of the footrest body are respectively slidably embedded in the two guide rails.

5. The concealable footrest according to claim 1, characterized in that: The fixing seat is arranged at a position a certain distance away from the footrest body in the direction in which the footrest body retracts.

6. The concealable footrest according to claim 1, characterized in that: The output shaft of the motor is perpendicular to the extending direction of the guide rail.

7. A seat, characterized in that: The invention comprises a tuckable footrest as claimed in any one of claims 1 to 6 mounted on the bottom of a seat.

8. The seat according to claim 7, characterized in that The footrest body of the hideable footrest extends in a direction toward the rear of the seat, and retracts in a direction toward the front of the seat.

9. The seat according to claim 7, characterized in that: The direction in which the footrest body of the hideable footrest extends is the forward direction of the seat, and the direction in which it retracts is the rearward direction of the seat.

10. A vehicle, characterized in that: Comprising a seat as described in any one of claims 7-9.

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