Folding assembly and seat

Abstract

The utility model relates to a folding assembly and a seat. Wherein the folding assembly comprises a placing piece which is used for providing a placing surface; the placing piece can be unfolded or folded relative to the base; the driving part comprises a driving piece and a transmission piece, the transmission piece comprises a toothed plate piece and a rotating shaft piece fixedly connected with the toothed plate piece, and the rotating shaft piece is connected with the placing piece; wherein the rotation output by the driving part can be transmitted to the rotating shaft part through the toothed plate part, so that the placing part is driven to rotate so as to be rotatably unfolded or folded relative to the base; the toothed plate piece comprises a toothed section, when teeth at one end of the toothed section are meshed, the toothed section corresponds to the placing piece at the unfolding position relative to the base, and when teeth at the other end of the toothed section are meshed, the toothed section corresponds to the placing piece at the folding position relative to the base.

Description

Technical Field

[0001] The present application relates to a folding assembly and a seat. Background Art

[0002] A foldable leg rest (also called a foot rest) can be provided on the back of a vehicle, such as a car seat, for passengers in the back row to place their feet, thereby improving the comfort of the passengers.

[0003] Since the footrest needs to bear a large force, the reliability requirement for the footrest is relatively high, which results in the footrest having a generally complex structure to ensure the reliability of the structure.

[0004] Therefore, there is a need in the art for a new folding assembly and a seat, which have a simple and compact structure and occupy a small space on the basis of reliable and stable support, so that the folding assembly and the seat can be easily arranged in the seat. Utility Model Content

[0005] The purpose of the present application is to provide a folding assembly.

[0006] The purpose of this application is also to provide a seat.

[0007] A folding assembly according to the first aspect of the present application includes: a placement member for providing a placement surface; a base, the placement member can be expanded or folded relative to the base; a driving part, the driving part includes a driving member and a transmission member, the transmission member includes a toothed plate member and a rotating shaft member fixedly connected to the toothed plate member, the rotating shaft member is connected to the placement member; wherein the rotation output by the driving part can be transmitted to the rotating shaft member through the toothed plate member, so that the placement member is driven to rotate and is rotationally expanded or folded relative to the base; the toothed plate member includes a toothed segment, when the teeth at one end of the toothed segment are engaged, the placement member is in an expanded position relative to the base, and when the teeth at the other end of the toothed segment are engaged, the placement member is in a folded position relative to the base.

[0008] The folding assembly described in the above embodiments has a simple and compact structure through the transmission structure of the driving part, the tooth plate part and the rotating shaft part, and realizes relatively stable and reliable support. In addition, the driving part can be automatically unfolded or folded, which is convenient for the user of the chair to use.

[0009] In one or more embodiments of the folding assembly, the tooth plate member includes a non-toothed segment, and one end and the other end of the toothed segment are connected to the non-toothed segment.

[0010] In one or more embodiments of the folding assembly, the driving portion further comprises a connecting arm, one end of the connecting arm is connected to the rotating shaft member, and the other end of the connecting arm is connected to the placing member.

[0011] In one or more embodiments of the folding assembly, the connecting arm includes a first connecting arm and a second connecting arm respectively arranged on both sides of the axial direction of the rotating shaft member, and the tooth plate member and the driving member are located in the middle position between the first connecting arm and the second connecting arm in the axial direction.

[0012] In one or more embodiments of the folding assembly, a support assembly is further included, and the support assembly is respectively connected to the rotating shaft member and the base, and the driving member and the base.

[0013] In one or more embodiments of the folding component, the bracket assembly includes a first bracket and a second bracket; the connecting arm includes a first connecting arm and a second connecting arm respectively arranged on both sides of the axial direction of the rotating shaft member, and the tooth plate member and the driving member are located in the middle position between the first connecting arm and the second connecting arm in the axial direction; the first bracket includes a first bracket member and a second bracket member, one end of the first bracket member in the axial direction is adjacent to one side of the first connecting arm, and the other end is adjacent to one side of the driving member; one end of the second bracket member in the axial direction is adjacent to the other side of the second connecting arm, and the other end is adjacent to the other side of the driving member; the second bracket is respectively connected to the driving member and the base.

[0014] In one or more embodiments of the folding assembly, a torsion spring connected to the rotating shaft is further included, wherein the torsion spring accumulates elastic force during the unfolding stroke of the placement member relative to the base, and releases the accumulated elastic force during the folding stroke of the placement member relative to the base.

[0015] In one or more embodiments of the folding assembly, the torsion spring is sleeved on the rotating shaft and includes a first torsion spring and a second torsion spring. The first torsion spring is arranged in the axial length range between the driving member and the first connecting arm, and the second torsion spring is arranged in the axial length range between the driving member and the second connecting arm.

[0016] A seat according to a second aspect of the present application comprises a folding assembly as described in the first aspect.

[0017] In one or more embodiments of the seat, the seat includes a backrest, which provides the base, and the folding assembly is arranged at a lower portion of the backrest to provide a leg rest for the seat.

[0018] The beneficial effect of the seat introduced in the above embodiment is that, due to the adoption of the folding assembly of the first aspect, the passenger has a better user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and other features, properties and advantages of the present application will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which:

[0020] Figure 1 The figure is a schematic structural diagram of the unfolded position of the folding assembly of a seat according to an embodiment.

[0021] Figure 2 The figure is a schematic structural diagram of the folding position of the folding assembly of a seat according to an embodiment.

[0022] Figure 3 It is a schematic structural diagram of a folding assembly of an embodiment when it is folded.

[0023] Figure 4 It is a schematic diagram of the structure of a folding assembly of an embodiment when it is unfolded.

[0024] Figure 5 The figure is a schematic diagram of the exploded structure of a folding assembly according to an embodiment.

[0025] Reference numerals:

[0026] 10-Folding component

[0027] 101-Expand position

[0028] 102-folded position

[0029] 1- Place the pieces

[0030] 100-Placement surface

[0031] 2- Base

[0032] 3-Drive unit

[0033] 31-Driver

[0034] 32-Transmission parts

[0035] 321-Gear plate

[0036] 3210-tooth segment

[0037] 322-Rotating shaft

[0038] 323-Connecting arm

[0039] 3231-First connecting arm

[0040] 3232-Second connecting arm

[0041] 324-Torsion spring

[0042] 3241-First torsion spring

[0043] 3242-Second torsion spring

[0044] 4- Bracket assembly

[0045] 41-First bracket

[0046] 411-First bracket

[0047] 412-Second bracket

[0048] 42-Second bracket

[0049] 20- Seats

[0050] 201-Backrest. DETAILED DESCRIPTION

[0051] The present application is further explained below in conjunction with specific embodiments and drawings. More details are elaborated in the following description to facilitate a full understanding of the present application. However, the present application can obviously be implemented in a variety of other ways different from this description. Those skilled in the art can make similar generalizations and deductions based on actual application situations without violating the connotation of the present application. Therefore, the scope of protection of the present application should not be limited by the content of this specific embodiment.

[0052] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" in the specification and claims of this application and the above-mentioned figure descriptions and any variations thereof are intended to cover non-exclusive inclusions.

[0053] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0054] In the description of the embodiments of the present application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, which are only for the convenience of describing the embodiments of the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0055] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "install", "connect", "connect", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0056] The folding assembly and its application scenario disclosed in the embodiment of the present application take the footrest at the lower part of the back side of the backrest of a car seat as an example, but it can be understood that the applicable scenarios of the folding assembly of this case are not limited to car seats, for example, it can be seats of other means of transportation such as airplanes, ships, trains, and it is not even limited to seats used in means of transportation such as cars, for example, it can also be seats in fixed places, such as massage chairs, seats for audience seats for large-scale events and conferences, office chairs, etc.

[0057] like Figure 1 as well as Figure 2 As shown, the folding assembly 10 is applied to a seat 20 as a footrest. The seat 20 includes a backrest 201, which provides a base 2. The folding assembly 10 is arranged at the lower part of the backrest 201 to provide a footrest for the seat 20.

[0058] like Figure 1 As shown, when the folding assembly 10 is folded into the backrest 201 of the seat 20, it is almost integrated with the backrest 201 of the seat 20 in appearance, and has little effect on the visual perception of the seat back. Figure 2 As shown, when the folding assembly 10 is unfolded, it can serve as a footrest to provide a place for the passenger's feet to be placed, thereby improving the passenger's experience. As mentioned above, since the object that the footrest needs to bear is at least part of the weight of the passenger, it needs to ensure sufficient reliability and its structure needs to be as compact as possible.

[0059] like Figures 3 to 5 As shown, in some embodiments, the folding assembly 10 includes a placement piece 1 , a base 2 and a driving unit 3 .

[0060] The placement piece 1 provides a placement surface 100 . For example, for a footrest, the placement surface 100 is the placement surface for the feet of the passenger.

[0061] The placement element 1 can be unfolded or folded relative to the base 2, and the base 2 can be provided by the backrest 201, for example Figure 1 As shown in the folding relative to the backrest 201, or as Figure 2 The deployment shown is relative to the backrest 201 .

[0062] The driving part 3 includes a driving member 31 and a transmission member 32. The transmission member includes a toothed plate member 321 and a rotating shaft member 322 fixedly connected to the toothed plate member 321, and the rotating shaft member 322 is connected to the placement member 1. The toothed plate member here means a plate-like member that is driven by gears. The driving member 31 refers to a non-manually driven component that provides a driving force, such as a motor that is directly driven by its output, or a combination of a motor and a gear assembly, in which the output of the motor is output after the gear assembly is changed in speed, and the rotation of the motor output is transmitted by the rotating member 32. The toothed plate member 321 can be fixedly connected to the rotating shaft member 322 by a weld structure, but is not limited thereto. For example, the two can also be integrally formed, or fixedly connected by a detachable connection structure.

[0063] refer to Figure 3 as well as Figure 4 As shown, the rotation output by the driving unit 3 can be transmitted to the rotating shaft 322 through the tooth plate 321, so that the placement member 1 is driven to rotate and rotate to expand or collapse relative to the base 2; the tooth plate 321 includes a toothed section 3210, and when the teeth at one end of the toothed section are engaged, the corresponding placement member 1 is in the expanded position 101 relative to the base 2, and when the teeth at the other end of the toothed section are engaged, the corresponding placement member 1 is in the collapsed position 102 relative to the base 2. The beneficial effect of using the toothed section is that it has a simple structure, and the rotation output by the driving unit 3 can be automatically locked in the expanded position 101 or the collapsed position 102 corresponding to the rotation stroke of the rotating shaft 322, especially making the positioning of the folding assembly 10 in the expanded position more stable and reliable. Preferably, the tooth plate member 321 may include a non-toothed segment, one end and the other end of the toothed segment are connected to the non-toothed segment. For example, the tooth plate member 321 may have a central angle of 80°, and the toothed segment 3210 correspondingly has a central angle of 70°. The 5° area at both ends of the toothed segment 3210 is the non-toothed segment, which can make the positioning in the expanded position 101 or the folded position 102 more reliable.

[0064] The beneficial effects of the folding assembly 10 of the above embodiment include but are not limited to the transmission structure of the driving part, the gear plate part and the rotating shaft part, which has a simple and compact structure and realizes relatively stable and reliable support, and the driving part can be automatically expanded or folded, which is convenient for the user of the chair to use.

[0065] Continue to refer Figures 3 to 5 As shown, the driving part 3 may further include a connecting arm 323, one end of the connecting arm 323 is connected to the rotating shaft 322, and the other end is connected to the placing member 1, so that the area of ​​the placing surface 100 of the placing member 1 can be reduced, thereby reducing the cost. It can be understood that the folding assembly 10 is not limited to the structure shown in the figure, for example, the placing member 1 may be directly connected to the rotating shaft 322, rather than being indirectly connected through the connecting arm 323 as shown in the figure.

[0066] Continue to refer Figures 3 to 5 As shown, in some embodiments, the specific arrangement of the connecting arm 323 can be that the connecting arm 323 includes a first connecting arm 3231 and a second connecting arm 3232 respectively arranged on both sides of the axis direction of the rotating shaft member 322, and the tooth plate member 321 and the driving member 31 are located in the middle position between the first connecting arm 3231 and the second connecting arm 3232 in the axis direction. Such a structure makes the corresponding force of the folding assembly 10 uniform, especially when the load is large when used as a footrest, such a relatively uniform force structure enables the folding assembly to remain stable and reliable.

[0067] Continue to refer Figures 3 to 5 As shown, in some embodiments, the folding assembly 10 further includes a bracket assembly 4, which is respectively connected to the rotating shaft member 322 and the base 2, and the driving member 31 and the base 2. Preferably, the bracket assembly 4 includes a first bracket 41 and a second bracket 42, and the tooth plate member 321 and the driving member 31 are located in the middle position between the first connecting arm 3231 and the second connecting arm 3232 in the axial direction; the first bracket 41 includes a first bracket member 411 and a second bracket member 412, and one end of the first bracket member 411 in the axial direction is adjacent to one side of the first connecting arm 3231, and the other end is adjacent to one side of the driving member 31; the second bracket member 412 is adjacent to the other side of the second connecting arm 3232 in the axial direction, and the other end is adjacent to the other side of the driving member 31; the second bracket 42 is respectively connected to the driving member 31 and the base 2. The support assembly of such a structure realizes stable and reliable support for the folding assembly 10 in a compact space. The principle is that, as introduced above, the driving force source of the folding assembly 10 is the driving member 31 located in the middle position, so this place is the concentrated force position, and the first support member 411 and the second support member 412 are arranged on both sides, and the second support 42 is arranged corresponding to the driving member and the base, so that the force at the concentrated force position is substantially evenly borne by the support assembly, so that the stability of the structure is better, especially for the implementation as a footrest with a larger load, the effect is more significant.

[0068] Continue to refer Figures 3 to 5 As shown, in some embodiments, the folding component 10 may further include a torsion spring 324 connected to the rotating shaft 322. In the unfolding stroke of the placement component 1 relative to the base 2, the torsion spring 324 accumulates elastic force, and in the folding stroke of the placement component 1 relative to the base 2, the torsion spring 324 releases the accumulated elastic force. The beneficial effect of setting the torsion spring is that the stroke rate of the folding component 10 can be adjusted by accumulating elastic force in the unfolding stroke and releasing elastic force in the folding stroke. For example, for the folding stroke, when the folding component 10 is a footrest, the folding stroke needs to overcome the gravity of the placement component 1, and the elastic force is released to assist.

[0069] Preferably, the distribution of the torsion spring 324 can be that the torsion spring 324 is sleeved on the rotating shaft 322, including a first torsion spring 3241 and a second torsion spring 3242, the first torsion spring 3241 is arranged in the axial length range between the driving member 31 and the first connecting arm 3231, and the second torsion spring 3242 is arranged in the axial length range between the driving member 31 and the second connecting arm 3232. Such a beneficial effect is that the force of the folding assembly 10 is uniform, and the reliability of the folding assembly is improved.

[0070] In summary, the beneficial effects of the folding assembly and the seat described in the above embodiments include but are not limited to: the transmission structure of the drive unit, the tooth plate member, and the rotating shaft member is simple and compact, and relatively stable and reliable support is achieved, and the drive unit can be automatically unfolded or folded, which is convenient for the user of the seat to use. In addition, the structural setting of the bracket assembly can also achieve uniform distribution of force on the folding assembly under the condition of a simple and compact structure, improve the reliability of the folding assembly, and ensure the stability and reliability of the folding assembly, especially the stability and reliability of the folding assembly in large load scenarios such as the footrest of the seat.

[0071] Although the present application is disclosed as above with preferred embodiments, it is not intended to limit the present application, and any person skilled in the art may make possible changes and modifications without departing from the spirit and scope of the present application. Therefore, any modification, equivalent change and modification made to the above embodiments based on the technical essence of the present application without departing from the content of the technical solution of the present application shall fall within the scope of protection defined by the claims of the present application.

Claims

1. A folding assembly (10), characterized in that: include: A placement member (1) for providing a placement surface (100); A base (2), wherein the placement element (1) can be unfolded or folded relative to the base (2); A driving part (3), the driving part (3) comprising a driving member (31) and a transmission member (32), the transmission member comprising a toothed plate member (321) and a rotating shaft member (322) fixedly connected to the toothed plate member (321), the rotating shaft member (322) being connected to the placement member (1); The rotation output by the driving part (3) can be transmitted to the rotating shaft part (322) through the tooth plate part (321), so that the placement part (1) is driven to rotate and is rotatably expanded or retracted relative to the base (2); The tooth plate member (321) comprises a toothed section (3210), wherein when the teeth at one end of the toothed section are engaged, the corresponding placement member (1) is in an extended position (101) relative to the base (2), and when the teeth at the other end of the toothed section are engaged, the corresponding placement member (1) is in a retracted position (102) relative to the base (2).

2. The folding assembly (10) according to claim 1, characterized in that: The toothed plate member (321) comprises a non-toothed segment, and one end and the other end of the toothed segment are connected to the non-toothed segment.

3. The folding assembly (10) according to claim 1, characterized in that: The driving part (3) further comprises a connecting arm (323), one end of the connecting arm (323) being connected to the rotating shaft (322), and the other end of the connecting arm (323) being connected to the placing part (1).

4. The folding assembly (10) according to claim 3, characterized in that: The connecting arm (323) comprises a first connecting arm (3231) and a second connecting arm (3232) which are respectively arranged on both sides of the axial direction of the rotating shaft member (322); the toothed plate member (321) and the driving member (31) are located in the middle position between the first connecting arm (3231) and the second connecting arm (3232) in the axial direction.

5. The folding assembly (10) according to claim 1, characterized in that: It also includes a support assembly (4), wherein the support assembly (4) is respectively connected to the rotating shaft member (322) and the base (2), and the driving member (31) and the base (2).

6. The folding assembly (10) according to claim 5, characterized in that: The bracket assembly (4) comprises a first bracket (41) and a second bracket (42); the connecting arm (323) comprises a first connecting arm (3231) and a second connecting arm (3232) respectively arranged on both sides of the axis direction of the rotating shaft member (322); the tooth plate member (321) and the driving member (31) are located at a middle position between the first connecting arm (3231) and the second connecting arm (3232) in the axis direction; the first bracket (41) comprises a first bracket member (411) and a second bracket member (412); one end of the first bracket member (411) in the axis direction is adjacent to one side of the first connecting arm (3231), and the other end is adjacent to one side of the driving member (31); one end of the second bracket member (412) in the axis direction is adjacent to the other side of the second connecting arm (3232), and the other end is adjacent to the other side of the driving member (31); the second bracket (42) is respectively connected to the driving member (31) and the base (2).

7. The folding assembly (10) according to claim 1, characterized in that: It also includes a torsion spring (324) connected to the rotating shaft (322), wherein the torsion spring (324) accumulates elastic force during the expansion stroke of the placement member (1) relative to the base (2), and releases the accumulated elastic force during the folding stroke of the placement member (1) relative to the base (2).

8. The folding assembly (10) according to claim 7, characterized in that: The torsion spring (324) is sleeved on the rotating shaft (322), and includes a first torsion spring (3241) and a second torsion spring (3242). The first torsion spring (3241) is arranged in the axial length range between the driving member (31) and the first connecting arm (3231), and the second torsion spring (3242) is arranged in the axial length range between the driving member (31) and the second connecting arm (3232).

9. A seat (20), characterized in that: It comprises a folding assembly (10) as claimed in any one of claims 1 to 8.

10. The seat (20) according to claim 9, characterized in that It comprises a backrest (201), wherein the backrest (201) provides the base (2), and the folding assembly (10) is arranged at the lower part of the backrest (201) to provide a footrest for the seat (20).

Images