Armrest module for armrest floor type seat unit and armrest floor type seat unit

Abstract

The utility model relates to an armrest module used for an armrest floor type seat unit, the seat unit comprises a linkage mechanism, the seat unit can be switched between a sitting position and an extending position by means of the linkage mechanism, the armrest module comprises an armrest piece, a first connecting piece, a second connecting piece and a third connecting piece, the armrest piece is fixedly supported on the ground, and the position of the armrest piece is fixed; and the handrail base plate is directly and fixedly connected with the handrail piece. According to the seat unit, the armrest base plate extends in the front-back direction of the seat unit, the side, facing the linkage mechanism, of the armrest base plate is directly connected with the linkage mechanism in a pivoted mode, and at least one reinforcing piece protruding outwards is arranged on the side, facing the armrest piece, of the armrest base plate. The stiffener extends across the entire armrest member in the transverse direction of the seat unit. In addition, the utility model further relates to a seat unit with a floor type armrest.

Description

Technical Field

[0001] The utility model relates to an armrest module for an armrest floor-mounted seat unit and an armrest floor-mounted seat unit including the armrest module. Background Art

[0002] In the prior art, various movable seats are known, such as sofas or seats with multi-position transformation functions. With the improvement of people's living standards, the comfort requirements for sofas and seats are also increasing day by day. In the known designs, movable seat units usually have linkage mechanisms to achieve transformations, for example, between a sitting position, a TV position, and a lying position. When the seat unit transforms from the sitting position to the TV position, the footrest of the seat unit extends forward, and the angle between the backrest and the seat part remains basically unchanged. When the seat unit transforms from the TV position to the lying position, the footrest further extends forward and rises upward compared to the leisure position, and the backrest significantly reclines. In the existing designs of such seat units, it is necessary to connect the linkage mechanism to the backrest, armrest, and seat part by means of an auxiliary frame.

[0003] However, the use of the auxiliary frame on the one hand leads to a further increase in the number of required parts and an increase in the assembly process; on the other hand, limited by the auxiliary frame, the available height below the seat unit is greatly reduced, thereby hindering normal cleaning and maintenance work. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a seat unit with a simpler structure, fewer assembly processes, and more convenient maintenance.

[0005] To solve the above technical problem, the utility model provides an armrest module for an armrest floor-mounted seat unit. The seat unit includes a linkage mechanism, and the seat unit can transform between a sitting position and a TV position and / or a lying position by means of the linkage mechanism. According to the utility model, the armrest module includes: an armrest member fixedly supported on the ground; an armrest substrate directly fixedly connected to the armrest member. The armrest substrate extends in the front-rear direction of the seat unit. The armrest substrate is directly pivotally connected to the linkage mechanism on the side facing the linkage mechanism, and at least one reinforcing member protruding outward is provided on the side of the armrest substrate facing the armrest member. The reinforcing member extends in the transverse direction of the seat unit over the entire armrest member and is fixedly connected to the armrest member.

[0006] In some embodiments, the seat unit includes a linkage mechanism with a seat frame, a backrest assembly pivotally connected to the front of the seat frame, and a leg extension device pivotally connected to the rear of the seat frame. A seat portion is attached to the seat frame, a backrest is attached to the backrest assembly, and a footrest is attached to the front end of the leg extension device. The linkage mechanism is capable of transforming the seat unit at least between a sitting position, a TV position, and / or a lying position. In the sitting position, the footrest portion is retracted under the seat portion; in the TV position, the footrest extends upward and forward, and the backrest remains substantially upright; in the lying position, the footrest further extends forward and upward, and the backrest tilts backward.

[0007] In some other alternative embodiments, the seat unit may also transform only between a sitting position and a TV position or only between a sitting position and a lying position.

[0008] Preferably, the armrest member is double-layered and includes an inner plate and an outer plate arranged parallel to each other in the lateral direction of the seat unit. The free end of the reinforcing member includes a fixed end face. The armrest base plate is fixedly connected to the inner plate, and the fixed end face is fixedly connected to the outer plate.

[0009] In an embodiment according to the present invention, the strength of the armrest base plate is improved by means of a reinforcing member. The extension of the reinforcing member in the lateral direction of the seat optimizes the force distribution when the user sits on the seat unit, reduces the pressure concentrated on the armrest member, and improves the uniformity of the force distribution. Thus, the auxiliary frame that originally had to be additionally installed between the linkage mechanism and the armrest member can be omitted, and a firm and reliable connection between the linkage mechanism and the armrest member can be achieved only by using the armrest base plate.

[0010] Particularly preferably, the reinforcing member includes a front reinforcing member, a rear reinforcing member, and a middle reinforcing member. Thus, a further uniform force distribution is achieved.

[0011] Preferably, the fixed end face is configured as a fixed flange.

[0012] Preferably, the armrest member includes a bottom plate fixedly connected to the inner plate and the outer plate. A main support foot member is fixedly connected to the bottom plate, and the armrest member is fixedly supported on the ground by means of the main support foot member. When the height between the main support foot member and the ground is 5 - 14 cm, the height of the frontmost end of the seat frame relative to the ground in the sitting position is 28 - 37 cm.

[0013] In this embodiment, the main support foot member is directly installed on the armrest member. Compared with the armrest member that was originally difficult to bear the self-weight of the seat unit and the weight of the user, in the embodiment according to the present invention, the strength and force uniformity of the armrest member are improved by means of the reinforcing member, so that the armrest member can be firmly and reliably supported on the ground by means of the main support foot member.

[0014] Preferably, the armrest base plate includes a base plate extension piece protruding upward in a height direction of the seat unit, wherein the base plate extension piece is fixedly connected to an inner plate of the armrest member.

[0015] Preferably, the armrest base has a straight lower edge. Preferably, the armrest base extends over at least 85% of the length of the armrest member in the front-to-back direction of the seat unit. Particularly preferably, the armrest base extends over the entire length of the armrest member in the front-to-back direction of the seat unit.

[0016] Preferably, the armrest module comprises a front transverse connector and a rear transverse connector, wherein the front transverse connector and the rear transverse connector extend between two armrest base plates.

[0017] In this embodiment, the front and rear transverse connecting members are directly connected between the armrest bases, thereby forming a solid frame structure, eliminating the auxiliary frame that was originally required, and thus reducing the parts required under the seat unit, providing more available space there to ensure the normal progress of cleaning and maintenance work, such as allowing a sweeping robot to pass smoothly under the seat unit.

[0018] The armrest module according to the present invention can be used for single-person or multi-person seat units. In a single-person movable seat unit, the seat unit includes only one seat portion, a group of armrest members located on both sides of the seat portion, and a group of armrest base plates for the armrest members; in a multi-person movable seat unit, the seat unit includes multiple seat portions, a group of armrest members, and a group of armrest base plates for the armrest members. The armrest members and the associated armrest base plates are located at the outermost sides of the seat unit, while in the middle of the seat unit, armrest members are usually not provided, but only intermediate base plates are provided accordingly. Preferably, the armrest module also includes at least two adjacent intermediate base plates, wherein the intermediate base plates extend along the front-to-back direction of the seat unit, one of the intermediate base plates is directly pivotally connected to the linkage mechanism on the side facing the linkage mechanism, and is fixedly connected to the other intermediate base plate on the side of the intermediate base plate facing away from the linkage mechanism.

[0019] Preferably, the intermediate substrate has a plug connector on a side facing away from the linkage mechanism, and the plug connector is used to achieve a fixed connection between the at least two intermediate substrates.

[0020] Preferably, the armrest module comprises a front transverse connector and a rear transverse connector, wherein the front transverse connector and the rear transverse connector extend between the armrest base plate and the intermediate base plate.

[0021] Particularly preferably, the armrest module comprises an auxiliary foot element, wherein the auxiliary foot element is directly or indirectly fixedly connected to the intermediate base plate.

[0022] Particularly preferably, auxiliary reinforcing members are arranged between the front transverse connecting member and the intermediate substrate and / or between the rear transverse connecting member and the intermediate substrate, wherein auxiliary support members are fixedly connected to the auxiliary reinforcing members.

[0023] The fixed connection described herein can be achieved by means of threaded connection, riveting, plugging, etc. When the material is suitable for the welding process, the fixed connection can also be achieved by means of welding.

[0024] Preferably, the intermediate substrate has a straight lower edge.

[0025] In addition, to solve the above technical problem, the present utility model further provides an armrest floor-mounted seat unit, which includes at least one linkage mechanism and the above-mentioned armrest module.

[0026] Preferably, the linkage mechanism includes a seat frame, a backrest assembly pivotally connected to the rear of the seat frame, and a leg extension device pivotally connected to the front of the seat frame. When the height of the foremost end of the leg extension device from the ground is 28 - 37 cm, the height of the foremost end of the seat frame from the ground in the sitting position is 28 - 37 cm.

[0027] In one embodiment, the seat unit includes at least three linkage mechanisms, wherein the armrest module includes two armrest substrates arranged outside the linkage mechanisms at both ends of the seat unit and intermediate substrates respectively arranged on the mutually facing sides of adjacent linkage mechanisms, and the adjacent intermediate substrates are connected to each other so as to connect the adjacent linkage mechanisms. Preferably, the intermediate substrates are connected by plugging, riveting or threaded connection.

[0028] It should be noted here that the "front - rear direction" described in this application refers to the extension direction of the leg extension device of the seat unit or the mechanical extension device. Specifically, the "front" refers to the direction towards the leg extension device, and the "rear" refers to the direction towards the backrest. The "lateral direction" refers to the direction perpendicular to the front - rear direction of the seat unit or the linkage mechanism on the horizontal plane. In other words, the "lateral direction" refers to the thickness direction of the armrest member of the seat unit. The "height direction" refers to the direction perpendicular to both the "front - rear direction" and the "lateral direction". BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The embodiments of the present utility model will be described in detail below with the aid of the drawings.

[0030] Figure 1 Schematically shows a perspective view of a movable seat unit according to the present utility model;

[0031] Figure 2 Schematically shows Figure 1Rear view of the shown seat unit;

[0032] Figure 3 Schematic partial perspective view of the linkage mechanism and armrest module of the seat unit according to the present utility model, in a sitting position;

[0033] Figure 4 Schematically showing Figure 3 Partial perspective view of the shown linkage mechanism and armrest module, in a TV position;

[0034] Figure 5 Schematically showing Figure 3 Partial perspective view of the shown linkage mechanism and armrest module, in a lying position;

[0035] Figure 6 Schematic partial perspective view of another part of the seat unit according to the present utility model;

[0036] Figure 7 Schematically showing Figure 6 Partial perspective view of the shown seat unit from another angle; and

[0037] Figure 8 Schematic side view of the seat unit according to the present utility model. Detailed implementation mode

[0038] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0039] As used herein, "one embodiment" or "embodiment" refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present utility model. In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. Moreover, terms such as "first" and "second" are used to distinguish similar objects and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present utility model described herein can be implemented in an order other than those illustrated or described herein.

[0040] Figure 1 and Figure 2 schematically show a perspective view and a rear view of an armrest floor-mounted seat unit according to the present utility model. According to Figure 1 and Figure 2 the seat unit shown is configured as a three-person seat unit, which includes individually adjustable linkage mechanisms 2A, 2B, and 3C. The linkage mechanisms 2A and 2C are respectively located on the left and right outer sides of the seat unit, and the linkage mechanism 2B is located in the middle. The seat unit further includes an armrest module 1. Among them, the armrest module 1 includes armrest members 61 that are mirror-image structures located on the left and right sides of the seat unit, an armrest base plate 101 directly fixedly connected to the armrest members 61, and an intermediate base plate 101' located in the middle of the seat unit. For example, in Figure 2In the illustrated embodiment, the seat unit has an armrest member 61 located to the left of the linkage mechanism 2A on the left side in the figure, an armrest base plate 101 directly and fixedly connected to the armrest member 61, and an intermediate base plate 101' located to the right of the linkage mechanism 2A; an armrest member 61 located to the right of the linkage mechanism 2C on the right side in the figure, an armrest base plate 101 directly and fixedly connected to the armrest member, and an intermediate base plate 101' located to the left of the linkage mechanism 2C; and two intermediate base plates 101' on the left and right sides of the linkage mechanism 2B belonging to the middle part. That is to say, the adjacent linkage mechanisms 2A and 2B each have their own intermediate base plate 101' on their mutually facing sides. Correspondingly, the adjacent linkage mechanisms 2B and 2C also each have their own intermediate base plate 101' on their mutually facing sides. By connecting these four intermediate base plates 101' to each other, the linkage mechanisms 2A, 2B, and 2C are connected side by side. The connection of the intermediate base plates can be achieved by riveting, screw connection, plugging, etc.

[0041] This modular construction method can increase or decrease the number of linkage mechanisms, that is, the number of seating positions, in the seat unit according to the required length, improving the scalability of the seat unit.

[0042] The above three-person seat unit is only for exemplary illustration, and it can also be increased to a four-person, five-person, or other longer seat unit according to needs. For this purpose, only the connection of the corresponding intermediate base plates needs to be released.

[0043] When the seat unit is constructed as a single-person seat unit, the seat unit includes only one set of linkage mechanism, a pair of armrest members 61 located on the left and right sides of the linkage mechanism, and a pair of armrest base plates 101 directly and fixedly connected to the armrest members 61.

[0044] For clarity Figures 3 to 5 Take Figure 1 the left part of the seat unit in the figure as an example, and schematically show the linkage mechanism 2A and the corresponding armrest module 1.

[0045] Exemplarily, the linkage mechanism 2A includes a multi-link mechanism and is constructed such that the seat unit can be transformed between a sitting position and an extended position. In this embodiment, the extended position includes a TV position and a lying position. However, the present invention is not limited to this. In other embodiments not shown, the extended position may also only include a TV position or a lying position.

[0046] It should also be noted here that the application of the armrest module 1 according to the present invention is not limited to the linkage mechanism shown in the drawings. In fact, Figures 3 to 5 the shown linkage mechanism is only for exemplary understanding, and the linkage mechanism can be constructed in various different ways as long as it can be adapted to the armrest module according to the present invention.

[0047] Exemplarily, as Figures 3 to 7 shown, the seat unit is configured as an armrest floor-standing seat unit, which includes a linkage mechanism 2A and an armrest module 1. The linkage mechanism 2A includes linkage mechanism halves symmetrically arranged on the left and right sides. The armrest module 1 is disposed on both sides of the linkage mechanism 2A, and includes an armrest base plate 101 and an intermediate base plate 101'. Among them, the armrest base plate 101 is directly fixedly connected to an armrest member 61 not shown in the figure, and the intermediate base plate 101' is fixedly connected to the intermediate base plate of an adjacent seat unit not shown.

[0048] The armrest member 61 is double-layered and includes an inner plate 611 and an outer plate 612 arranged in parallel in the lateral direction of the seat unit and a bottom plate 613 connecting the inner plate and the outer plate. Thus, the armrest member 61 encloses a hollow cavity.

[0049] The armrest base plate 101 of the armrest module 1 extends along the front-rear direction of the seat unit over the entire length of the armrest member 61 and is substantially linearly configured. In particular, the lower edge of the armrest base plate 101 extends linearly.

[0050] On the side of the armrest base plate 101 facing the outside, that is, facing the armrest member 61, at least one reinforcing member protruding outward is provided, such as Figure 3 shown as three reinforcing members, that is, a front reinforcing member 102, a rear reinforcing member 103, and a middle reinforcing member 104. These three reinforcing members all extend along the lateral direction of the seat unit over the entire thickness of the armrest member 61. The free end portions of the reinforcing members respectively include fixed end faces. As Figure 3 shown, the free end portion of the middle reinforcing member 104 is preferably configured as a fixed flange, which is flush with the free end portions of the front reinforcing member 102 and the rear reinforcing member 103, and they are jointly fixedly connected to the outer plate 612 of the armrest member 61. The armrest base plate 101 is fixedly connected to the inner plate 611 of the armrest member 61. Thus, the armrest base plate 101 together with the reinforcing members is fixedly connected to the armrest member 61 from both sides.

[0051] By providing the reinforcing members on the armrest base plate, the force distribution of the user when sitting on the seat unit, especially on the armrest member, is improved, and the strength of the armrest member is increased. Thus, a main support leg member 108 is allowed to be fixedly connected to the bottom plate 613 of the armrest member 61 for supporting the armrest member 61 and even the entire seat unit on the ground.

[0052] The armrest base plate 101 further includes a base plate extension 107 protruding upward in the height direction of the seat unit, and the base plate extension 107 is fixedly connected to the inner plate 611 of the armrest member 61.

[0053] The intermediate substrate 101' is located on the other side of the linkage mechanism 2A. It also extends along the front-back direction of the seat unit and preferably has the same length as the armrest substrate 101. Different from the armrest substrate 101, since the intermediate substrate 101' does not need to be directly fixedly connected to the armrest member, no reinforcing member is provided on the intermediate substrate 101'. Instead, a plug-in member is provided on the side of the intermediate substrate 101' facing away from the linkage mechanism 2A, and through this plug-in member, it can be fixedly connected to another adjacent intermediate substrate. Preferably, the intermediate substrate 101' has an auxiliary extension member 107' protruding upward along the height direction of the seat unit, and a plug-in member is also provided on the side of it facing away from the linkage mechanism 2A. Through this plug-in member, it can be fixedly connected to the auxiliary extension member of another adjacent intermediate substrate to achieve a stable connection between the two intermediate substrates.

[0054] For a three-person seat unit, in the outer seat unit part, to further improve the structural stability, a front transverse connecting member 105 and a rear transverse connecting member 106 are provided between the armrest substrate 101 and the intermediate substrate 101'. Preferably, the two ends of the rear transverse connecting member 106 are respectively fixedly connected to the armrest substrate 101 and the intermediate substrate 101' by means of auxiliary reinforcing members 109. In the middle seat unit part, for example, in the seat unit part having the linkage mechanism 2B, a front transverse connecting member 105 and a rear transverse connecting member 106 are provided between the two intermediate substrates 101'.

[0055] For a single-person seat unit, to further improve the structural stability, a front transverse connecting member 105 and a rear transverse connecting member 106 are provided between the two armrest substrates 101.

[0056] For a three-person seat unit, an auxiliary support member 108' can also be provided on the intermediate substrate 101' of the armrest module. Preferably, the auxiliary support member 108' is provided on the auxiliary reinforcing member 109.

[0057] For a single-person seat unit, only the main support member can be provided, and the auxiliary support member can be omitted.

[0058] For a single-person seat unit, the linkage mechanism is located between the two armrest substrates. For a multi-person seat unit, the linkage mechanism is provided between the corresponding armrest substrate and the intermediate substrate, and optionally, a linkage mechanism is also provided between the two intermediate substrates. For example Figures 6 to 7 as shown, 2A is located between the armrest substrate 101 and the intermediate substrate 101', and the connections of the linkage mechanism 2A with the armrest substrate 101 and with the intermediate substrate 101' are basically the same. For the sake of simplicity, only the connection mode between the linkage mechanism 2A and the armrest substrate 101 is used for exemplary illustration below.

[0059] Exemplarily, the linkage mechanism 2A includes a seat frame 210, a backrest assembly 22 pivotally connected to the rear of the seat frame 210, and a leg extension device 23 pivotally connected to the front of the seat frame 210.

[0060] The backrest assembly 22 includes a backrest bracket 221 for attaching the backrest 62, and the backrest assembly 22 further includes a backrest link 222 and a crank member 223.

[0061] The backrest bracket 221 has a generally L-shaped configuration, its upper part is fixedly connected to the backrest 62, a backrest link 222 is connected between its front end and the seat frame 210, and a crank member 223 is connected between its rear end and the seat frame 210.

[0062] The crank member 223 includes three pivot points located at its upper end, lower end, and middle respectively. By means of these three pivot points, the crank member is pivotally connected to the rear end of the backrest bracket 221 using the pivot point at its upper end, and is pivotally connected to the rear of the seat frame 210 using the pivot point in its middle. In addition, the crank member 223 is also pivotally connected to the side of the armrest substrate 101 facing the linkage mechanism using the pivot point at its lower end by means of an intermediate link of the linkage mechanism.

[0063] In addition, the linkage mechanism further includes a front pivot rod 217, a rear pivot rod 218, and a transmission component. The front pivot rod 217 and the rear pivot rod 218 are respectively pivotally connected to the side of the armrest substrate 101 facing the linkage mechanism at their lower ends, and are respectively pivotally connected to the transmission component at their lower ends.

[0064] The transmission component can include various different configurations. For example, in Figures 3 to 7 the illustrated embodiment, the transmission component can include a front swing rod 213, a rear swing rod 214, an intermediate link 215, a secondary front swing rod 217, a secondary rear swing rod 218, and a secondary intermediate link 219a.

[0065] The front end of the secondary intermediate link 219a is pivotally connected to the top end of the secondary front swing rod 217. In addition, a follower link 219b is pivotally connected between the middle of the secondary intermediate link 219a and the top end of the secondary rear swing rod 218.

[0066] The upper ends of the front swing rod 213 and the rear swing rod 214 are respectively pivotally connected to the seat frame 210, and the intermediate link 215 is pivotally connected between the front swing rod 213 and the rear swing rod 214. In addition, a seat frame linkage rod 216 is also pivotally connected between the front end of the intermediate link 215 and the seat frame 210. Thus, a four-bar linkage mechanism is formed by the seat frame 210, the front swing rod 213, the rear swing rod 214, and the intermediate link 215.

[0067] According to the present utility model, the armrest base plate 101 is directly fixedly connected to the armrest member 61 on the side facing the armrest member 61, and is directly pivotally connected to the linkage mechanism on the side facing the linkage mechanism. Thus, only by means of the armrest base plate 101 together with the reinforcing member fixed on the armrest base plate, the linkage mechanism is "suspended" and connected to the armrest member. Since the additional auxiliary frame is omitted, a sufficiently large space is provided under the seat unit, allowing cleaning and maintenance work to be carried out without increasing the overall height of the seat, and even while appropriately reducing the overall height of the seat. In addition, due to the simple structure and no interference with other components of the existing seat unit, the armrest module 1 according to the present utility model can also be applied to a variety of seat units, for example, it can be applicable to various seat units such as "zero gravity" and "zero wall attachment".

[0068] When the seat unit extends from Figure 3 the sitting position shown, the leg extension device 23 extends forward and drives the seat frame 210 to move forward, thereby causing the front swing rod 213 and the rear swing rod 214 to tilt forward respectively around their pivot points on the intermediate link 215.

[0069] When the seat frame linkage rod 216 is driven to move forward to the limit position, that is, when reaching Figure 4 the TV position shown, if the leg extension device 23 continues to extend in the same direction, the intermediate link 215 together with the seat frame 210 move forward together, thereby driving the sub-front swing rod 217 and the sub-rear swing rod 218 to pivot and tilt forward respectively around their pivot points with the armrest base plate 101 at the lower ends. In addition, the crank member 223 tilts in the direction of the leg extension device around the pivot point at its lower end, thereby pushing the backrest support 221 forward as a whole, and the upper part of the backrest support 221 tilts further backward, and the angle of the backrest link 222 relative to the seat frame 210 decreases. Thus, the Figure 5 lying position shown is achieved.

[0070] During the attitude change process of the seat unit, the sitting position often poses more space occupation requirements for the space under the seat unit. As mentioned above, in the seat unit according to the present utility model, the auxiliary frame is omitted, allowing a relatively large space to be provided under the seat unit even when the height of the seat part of the seat unit remains unchanged or is appropriately reduced. Especially as Figure 8 shown, when the height H1 between the main leg member 108 and the ground E0 is 5 - 14 cm, the height of the foremost end of the seat frame 210 relative to the ground E0 in the sitting position is 28 - 37 cm.

[0071] Preferably, the linkage mechanism can achieve attitude transformation under the drive of a linear electric actuator. However, in an alternative embodiment, the linkage mechanism can also be manual or a combination of manual and motor drive modes.

[0072] The above description has fully disclosed the specific embodiments of the present utility model. It should be noted that any modification made by those skilled in the art to the specific embodiments of the present utility model does not depart from the scope of the claims of the present utility model. Accordingly, the scope of the claims of the present utility model is not limited solely to the foregoing specific embodiments.

Claims

1. An armrest module for an armrest floor-mounted seat unit, the seat unit including a linkage mechanism with a seat frame, the seat unit being able to transform between a sitting position, a TV position, and / or a lying position by means of the linkage mechanism, characterized in that, The armrest module includes: An armrest member fixedly supported on the ground; An armrest base plate directly fixedly connected to the armrest member, wherein the armrest base plate extends in the front-rear direction of the seat unit, the armrest base plate is directly pivotally connected to the linkage mechanism on the side facing the linkage mechanism, and at least one reinforcing member protruding outward is provided on the side of the armrest base plate facing the armrest member, the reinforcing member extends in the transverse direction of the seat unit over the entire armrest member and is fixedly connected to the armrest member.

2. The armrest module according to claim 1, characterized in that The armrest member is double-layer structured and includes an inner plate and an outer plate arranged parallel to each other in the transverse direction of the seat unit. The free end of the reinforcing member includes a fixed end face. Among them, the armrest base plate is fixedly connected to the inner plate, and the fixed end face is fixedly connected to the outer plate.

3. The armrest module according to claim 2, characterized in that, The reinforcing member includes a front reinforcing member, a rear reinforcing member, and a middle reinforcing member.

4. The armrest module according to claim 3, characterized in that The fixed end face is configured as a fixed flange.

5. The armrest module according to claim 2, characterized in that, The armrest member includes a bottom plate fixedly connected to the inner plate and the outer plate.

6. The armrest module according to claim 5, characterized in that, A main support leg member is fixedly connected to the bottom plate, and the armrest member is fixedly supported on the ground by the main support leg member.

7. The armrest module according to claim 6, characterized in that, When the height between the main support leg member and the ground is 5 - 14 cm, the height of the foremost end of the seat frame relative to the ground in the sitting position is 28 - 37 cm.

8. The armrest module according to claim 2, characterized in that, The armrest base plate includes a base plate extension protruding upward in the height direction of the seat unit. Among them, the base plate extension is fixedly connected to the inner plate of the armrest member.

9. The armrest module according to claim 1, characterized in that The armrest base plate has a straight lower edge.

10. The armrest module according to claim 1, characterized in that, The armrest base plate extends in the front-rear direction of the seat unit over at least 85% of the length of the armrest member.

11. The armrest module according to claim 10, wherein The armrest base plate extends in the front-rear direction of the seat unit over the entire length of the armrest member.

12. The armrest module according to claim 1, wherein The armrest module includes a front transverse connecting member and a rear transverse connecting member, wherein the front transverse connecting member and the rear transverse connecting member extend between two armrest base plates.

13. The armrest module according to claim 1, wherein, The armrest module further includes at least two adjacent intermediate base plates, wherein the intermediate base plates extend in the front-rear direction of the seat unit. One of the intermediate base plates is directly pivotally connected to the linkage mechanism on the side facing the linkage mechanism, and is fixedly connected to another intermediate base plate on the side of the intermediate base plate facing away from the linkage mechanism.

14. The armrest module according to claim 13, characterized in that, The intermediate base plate has a plug-in member on the side facing away from the linkage mechanism, and the fixed connection of the at least two intermediate base plates is achieved by using the plug-in member.

15. The armrest module according to claim 13, characterized in that, The armrest module includes a front transverse connecting member and a rear transverse connecting member, wherein the front transverse connecting member and the rear transverse connecting member extend between the armrest base plate and the intermediate base plate.

16. The armrest module according to claim 15, wherein, The armrest module includes an auxiliary support leg member, wherein the auxiliary support leg member is directly or indirectly fixedly connected to the intermediate base plate.

17. The armrest module according to claim 16, characterized in that, Auxiliary reinforcing members are arranged between the front transverse connecting member and the intermediate base plate and / or between the rear transverse connecting member and the intermediate base plate, and the auxiliary support leg member is fixedly connected to the auxiliary reinforcing member.

18. The armrest module according to claim 13, characterized in that, The intermediate base plate has a straight lower edge.

19. An armrest floor-standing seat unit, characterized in that, The seat unit includes at least one linkage mechanism and the armrest module according to any one of the above claims.

20. The seat unit according to claim 19, characterized in that, The linkage mechanism includes a seat frame, a backrest assembly pivotally connected to the rear of the seat frame, and a leg extension device pivotally connected to the front of the seat frame.

21. The seat unit according to claim 20, characterized in that, When the height of the foremost end of the leg extension device from the ground is 28 - 37 cm, the height of the foremost end of the seat frame relative to the ground in the sitting position is 28 - 37 cm.

22. The seat unit according to claim 19, characterized in that, The seat unit includes at least three linkage mechanisms. Among them, the armrest module includes two armrest base plates arranged on the outer sides of the linkage mechanisms at both ends of the seat unit, armrest members connected to the armrest base plates, and intermediate base plates respectively arranged on the mutually facing sides of adjacent linkage mechanisms. The adjacent intermediate base plates are connected to each other so as to connect the adjacent linkage mechanisms.

23. The seat unit according to claim 22, characterized in that, The intermediate base plates are connected by plugging, riveting or screwing.

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