Armrest for seat and seat

Abstract

The present invention relates to an armrest for a seat and a seat. The armrest as a whole is suitable for being installed on one side of the seat board of the seat and can extend forward towards the seat board. The armrest includes a first support rod, a second support rod, and a load-bearing unit. One side surface of the first support rod is slidably connected to one side of the seat board. The second support rod is slidably connected to the front end of the first support rod. The load-bearing unit is rotatably connected to the front end of the second support rod. The second support rod located in front of the seat board is used as an armrest handle to assist people in getting up. Compared with the traditional armrest for a seat, it changes the way people directly get up sideways and improves the comfort when getting up. At the same time, when people are resting, their hands can be placed on the second support rod, which has the effect of guiding people to change the previous way of resting relying on the backrest and effectively increases the ways of resting. The load-bearing unit can carry heavy objects and has a strong convenience function. Overall, the functions of the armrest for a seat are effectively increased.

Description

Technical Field

[0001] The present invention relates to the technical field of seats, and particularly to an armrest for a seat and a seat. Background Art

[0002] Existing seats are mainly divided into two categories, namely finished seats and basic seats. With the in-depth transformation of seats, the number of seats designed for each age group is also increasing. When designing seats, the following requirements of people for seats should be considered: (1) the requirement for the backrest; (2) the requirement for the armrest for getting up; (3) the requirement for rest safety; (4) the requirement for comfort.

[0003] However, the traditional armrest for a seat has a relatively single function and cannot meet the diverse needs of people. Summary of the Invention

[0004] To solve the problem that the traditional armrest for a seat has a relatively single function and cannot meet the diverse needs of people, the present invention provides an armrest for a seat and a seat.

[0005] An armrest for a seat provided to achieve the purpose of the present invention is integrally applicable to be installed on one side of the seat board of a seat and can extend forward towards the seat board;

[0006] The armrest includes a first support rod, a second support rod and a load-bearing unit;

[0007] One side surface of the first support rod is slidably connected to one side of the seat board;

[0008] The extending directions of the two ends of the second support rod are the same as those of the two ends of the first support rod; the second support rod is slidably connected to the front end of the first support rod;

[0009] The load-bearing unit is rotatably connected to the front end of the second support rod.

[0010] In one specific embodiment, the load-bearing unit includes a suspension arm;

[0011] There are two suspension arms, which are arranged oppositely and the rear ends of both are fixedly connected to the front end surface of the second support rod.

[0012] In one specific embodiment, each suspension arm is an arc-shaped structure;

[0013] The concave sides of the two suspension arms face each other, the convex sides face away from each other, and a preset distance is left between the front ends.

[0014] In one specific embodiment, a first guiding hole is formed in the second support rod;

[0015] A first mounting hole is formed in the front end of the first support rod;

[0016] The first support rod and the second support rod are fixedly connected by a first adjusting nut through a first mounting hole and a first guiding hole.

[0017] A seat based on the same concept includes a seat board and an armrest provided in any of the above specific embodiments;

[0018] The first support rod of the armrest is slidably connected to one side of the seat board.

[0019] In one of the specific embodiments, a guiding box is further included;

[0020] The guiding box is hollow, and its opposite ends extend towards the front end and the rear end of the seat board respectively. The front end is an open structure, and the top surface is fixedly connected to the bottom surface of one side of the seat board;

[0021] On the inner sides of the opposite side walls of the guiding box, first guide rails are provided, and both ends of the first guide rails extend along the axial direction of the guiding box;

[0022] Correspondingly, on the opposite side surfaces of the first support rod, first mounting grooves adapted to the first guide rails are provided; the first support rod and the guiding box are slidably connected through the first mounting grooves and the first guide rails.

[0023] In one of the specific embodiments, a rotating shaft is provided at the rear end of the first support rod;

[0024] Second mounting holes are provided in the middle of the rotating shaft and at the front end of the guiding box, and the rotating shaft and the front end of the guiding box can be fixedly connected by a second adjusting bolt through the second mounting holes.

[0025] In one of the specific embodiments, the seat board, the guiding box and the first support rod are all made of steel;

[0026] The second support rod and the load-bearing unit of the armrest are both made of plastic;

[0027] The seat board and the guiding box are fixedly connected by welding.

[0028] In one of the specific embodiments, second guiding holes are provided on both opposite sides of the seat board;

[0029] On the opposite hole walls of the second guiding holes, second guide rails are provided, and both ends of the second guide rails extend along the axial direction of the second guiding holes;

[0030] Correspondingly, on the opposite side surfaces of the first support rod, second mounting grooves adapted to the second guide rails are provided; the first support rod and the hole walls of the second guiding holes are slidably connected through the second mounting grooves and the second guide rails.

[0031] Advantages of the present invention: The armrest for a seat of the present invention is provided with a first support rod, a second support rod and a load-bearing unit. The first support rod can slide along the seat board so that the first support rod, the second support rod and the load-bearing unit are located in front of the seat board. Among them, the first support rod can support and fix the second support rod and the load-bearing unit. The second support rod located in front of the seat board can be used as a handrail to assist people in getting up. Compared with the traditional armrest for a seat, it changes the way people directly get up sideways and improves the comfort when getting up. At the same time, when people are resting, their hands can be placed on the second support rod in front of the seat board, which has the effect of guiding people to change the previous way of resting relying on the backrest and effectively increases the ways of resting. The load-bearing unit can carry heavy objects, and people no longer need to place shopping bags on the ground or on the adjacent seat board, reducing the possibility of people forgetting shopping bags and having a strong convenience function. Overall, the functions of the armrest for a seat are effectively increased. Moreover, when the armrest for a seat is idle, it can be folded up, occupying a relatively small space as a whole and effectively reducing the occupancy rate of public space. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 FIG. 6 is a schematic structural diagram of a specific embodiment of an armrest for a seat of the present invention in an idle state;

[0033] Figure 2 is Figure 1 FIG. 7 is a schematic structural diagram of the armrest for a seat shown in FIG. 6 in a use state;

[0034] Figure 3 is Figure 1 FIG. 8 is a schematic structural diagram of the armrest for a seat shown in FIG. 6 in another use state;

[0035] Figure 4 is Figure 1 FIG. 9 is a schematic structural diagram of the armrest for a seat shown in FIG. 6 in yet another use state;

[0036] Figure 5 FIG. 10 is a schematic structural diagram of a specific embodiment of a seat of the present invention in an idle state;

[0037] Figure 6 is Figure 5 FIG. 11 is a schematic structural diagram of the seat shown in FIG. 10 in a use state;

[0038] Figure 7 is Figure 5 FIG. 12 is a schematic structural diagram of the seat shown in FIG. 10 in another use state;

[0039] Figure 8 is Figure 5 FIG. 13 is a schematic structural diagram of the seat shown in FIG. 10 in yet another use state. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0041] Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference signs denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present invention, and should not be construed as a limitation of the present invention.

[0042] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by terms such as "top", "bottom", "inner", "outer", "axis", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention or 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 thus should not be construed as a limitation of the present invention.

[0043] In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, "a plurality of" means two or more unless otherwise specifically defined.

[0044] In the present invention, unless otherwise clearly defined and limited, terms such as "mounted", "connected", "connected to", "fixed", "joined", "hinged", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral body; it may be a mechanical connection or an electrical connection; it may be a direct connection or an indirect connection through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0045] Refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4, as a specific embodiment of the present invention, an armrest for a seat is generally applicable to be installed on one side of the seat board 200 of the seat and can extend forward towards the seat board 200. The armrest includes a first support rod 110, a second support rod 120, and a load-bearing unit 130. Among them, one side surface of the first support rod 110 is slidably connected to one side of the seat board 200. The extending directions of both ends of the second support rod 120 are the same as those of both ends of the first support rod 110, and the second support rod 120 is slidably connected to the front end of the first support rod 110. The load-bearing unit 130 is rotatably connected to the front end of the second support rod 120.

[0046] In this embodiment, the first support rod 110 can slide along the seat board 200 so that the first support rod 110, the second support rod 120, and the load-bearing unit 130 are located in front of the seat board 200. Here, it should be noted that the front side of the seat board 200 refers to the side of the seat board 200 away from the backrest. The first support rod 110 can support and fix the second support rod 120 and the load-bearing unit 130. The second support rod 120 can slide along the axial direction of the first support rod 110. When people get up towards the front of the seat board 200, there is a tendency to lean forward the upper body. The second support rod 120 located in front of the seat board 200 is used as a handrail to assist people in getting up. Compared with the traditional armrest for a seat, it changes the way people directly get up sideways and improves the comfort when getting up. Especially for the elderly with inconvenient movement, the second support rod 120 as a handrail guides the elderly to lean forward to get up, effectively improving the comfort of the elderly when getting up. At the same time, when people are resting, the hand can be placed on the second support rod 120 in front of the seat board 200, which has the effect of guiding people to change the previous way of resting relying on the backrest, effectively increasing the resting methods, that is, the user can either rest relying on the backrest or rest leaning forward. The load-bearing unit 130 rotatably connected to the front end of the second support rod 120 can carry heavy objects (such as shopping bags containing fruits, vegetables, commodities or items, and drinking cups, etc.). People no longer need to place the shopping bag on the ground or the adjacent seat board 200, reducing the possibility of people forgetting the shopping bag, and having a strong convenience function. Especially for the elderly, there is no need to make a large bending motion to grasp the shopping bag on the ground, providing a more convenient way of taking for the elderly. Overall, the functions of the armrest for a seat are effectively increased. Moreover, when the armrest for a seat is idle, the overall occupied space is small, effectively reducing the occupancy rate of the public space. In addition, the armrest for a seat has a high flexibility and is relatively convenient to install, which can effectively reduce the later maintenance cost.

[0047] In one embodiment of the present invention, the load-bearing unit 130 includes two suspension arms 131, each positioned opposite the other. Their rear ends are fixedly connected to the front end of the second support rod 120. The suspension arms 131 facilitate hanging and removing shopping bags. Each suspension arm 131 is arc-shaped. The concave sides of the two suspension arms 131 face each other, while the convex sides face away from each other. In other words, the two suspension arms 131 form a circular ring structure, convenient for holding heavy objects with circular cross-sections, such as water cups. A predetermined distance is left between the front ends of the two suspension arms 131, facilitating the hanging and removing of shopping bags. Furthermore, the center of each suspension arm 131 is hollowed to form a through-hole. This effectively reduces the weight of the suspension arms 131, resulting in a lightweight design for the load-bearing unit 130. The convex sides of each suspension arm 131 are chamfered, reducing the possibility of the suspension arm 131 accidentally injuring the user and effectively reducing the possibility of the suspension arm 131 breaking due to localized stress concentration.

[0048] In one embodiment of the present invention, when in use, the front end of the first support rod 110 can extend beyond the front end of the seat plate 200 by a first predetermined length, and the front end of the second support rod 120 can extend beyond the front end of the first support rod 110 by a second predetermined length. Because the front ends of the first and second support rods extend in the same direction, the first and second predetermined lengths can overlap, effectively improving comfort when leaning forward to stand up and rest. Specifically, the first predetermined length is 0.5-1m, and the second predetermined length is 0.2-0.3m. In some use situations, the first and second support rods 110 and 120 are located on the same straight line. This parallel arrangement effectively reduces space usage. In this case, the center of the circular ring structure formed by the two suspension arms 131 is located on the line aligning with the first support rod 110. This ensures that when the suspension arms 131 bear a heavy load, the overall force balance of the chair armrest is improved, making deformation and damage less likely to occur. In other usage states, the angle between the line where the second support rod 120 lies and the line where the first support rod 110 lies is 90 degrees, which makes it easier for people resting on adjacent seats to use the seat. At the same time, the second support rod 120 and the load-bearing unit 130 can avoid pedestrians in front of the seat.

[0049] In a specific embodiment of the present invention, a first guiding hole 121 is formed in the second support rod 120, and the second guiding hole is arranged along the axial direction of the second support rod 120. A first mounting hole 112 is formed at the front end of the first support rod 110. The first support rod 110 and the second support rod 120 are fixedly connected through the first mounting hole 112 and the first guiding hole 121 by using a first adjusting nut 140. In this way, the adjustment of the position of the second support rod 120 is relatively simple and convenient. Overall, the structure of the armrest for the seat is simple, effectively reducing the manufacturing cost, facilitating installation, use, disassembly and replacement, and being conducive to popularization. And the later maintenance cost is effectively reduced.

[0050] Referring to Figure 5 , Figure 6 , Figure 7 and Figure 8 , the present invention further provides a seat, including a seat board 200 and the armrest provided in any one of the above specific embodiments. Wherein, the first support rod 110 of the armrest is slidably connected to one side of the seat board 200.

[0051] In this embodiment, the first support rod 110 can slide along the seat board 200 so that the first support rod 110, the second support rod 120 and the load-bearing unit 130 are located in front of the seat board 200. The first support rod 110 can support and fix the second support rod 120 and the load-bearing unit 130. The second support rod 120 is used as a handrail to assist people to get up. Compared with the traditional armrest for the seat, it changes the way people directly get up sideways, improving the comfort when getting up. At the same time, when people are resting, the hand can be placed on the second support rod 120, which has the effect of guiding people to change the previous way of relying on the backrest to rest, effectively increasing the rest methods, that is, the user can either rely on the backrest to rest or lean forward to rest. The load-bearing unit 130 can carry heavy objects (such as shopping bags containing fruits, vegetables, commodities or items, and drinking cups, etc.). People no longer need to place the shopping bag on the ground or on the adjacent seat board 200, reducing the possibility of people forgetting the shopping bag, and having a strong convenience function. Overall, the functions of the armrest for the seat are effectively increased.

[0052] In a specific embodiment of the present invention, the seat further includes a guide box 300. The guide box 300 has a hollow structure and extends towards the front end and the rear end of the seat board 200 at its opposite ends respectively. The front end is an open structure, and the top surface is fixedly connected to the bottom surface of one side of the seat board 200. On the inner sides of the opposite side walls of the guide box 300, first guide rails are provided, and both ends of the first guide rails extend along the axial direction of the guide box 300. Correspondingly, on the opposite side surfaces of the first support rod 110, first installation grooves adapted to the first guide rails are provided. The first support rod 110 and the guide box 300 are slidably connected through the first installation grooves and the first guide rails. In this way, the first support rod 110 can be received inside the guide box 300 to be isolated from the external environment of the guide box 300, effectively extending the service life of the first support rod 110. And the space utilization rate is effectively improved. At the rear end of the first support rod 110, a rotating shaft 111 is provided. Second installation holes are opened at the middle of the rotating shaft 111 and the front end of the guide box 300 respectively. The rotating shaft 111 and the front end of the guide box 300 can be fixedly connected by using a second adjusting bolt through the second installation holes. When the rear end of the first support rod 110 slides to the front end of the guide box 300, the front end of the first support rod 110 can be rotated upwards. At this time, the first support rod 110 can be used as a handrail, and it is convenient for people to pass through from the front of two adjacent seat boards 200. Here, it should be noted that the guide box 300 includes two side plates and a bottom plate, and the front ends of the bottom plate and the two side plates extend a third preset length beyond the front end of the seat board 200. When the axial direction of the first support rod 110 forms a 90-degree angle with the axial direction of the guide box 300, the rotating shaft 111 and the front ends of the two side plates of the guide box 300 can be fixedly connected by the second adjusting bolt, so that the first support rod 110 and the guide box 300 are fixedly connected, and the part where the front end of the bottom plate extends beyond the front end of the seat board 200 can support the first support rod 110. The overall structure is simple, effectively reducing the use difficulty. Among them, the seat board 200, the guide box 300 and the first support rod 110 are all made of steel, having strong anti-corrosion performance and effectively extending the service life of the seat board 200, the guide box 300 and the first support rod 110. The second support rod 120 and the load-bearing unit 130 of the armrest are both made of plastic, having strong impact resistance and anti-deformation ability, and not easily causing harm to people. The seat board 200 and the guide box 300 are fixedly connected by welding. In this way, the connection between the seat board 200 and the guide box 300 is relatively stable, and the guide box 300 is not easily detached.

[0053] In another specific embodiment of the present invention, second guiding holes are formed on opposite sides of the seat plate 200, and two ends of each guiding hole respectively face the front and the rear of the seat plate 200. Second guiding rails are provided on opposite hole walls of each second guiding hole, and two ends of each second guiding rail extend along the axial direction of the second guiding hole. Correspondingly, second mounting grooves adapted to the second guiding rails are formed on opposite side surfaces of the first support rod 110, and the first support rod 110 and the hole wall of the second guiding hole are slidably connected through the second mounting grooves and the second guiding rails. In this way, there is no need to additionally provide a guiding box 300, further improving the space utilization rate and effectively simplifying the structure of the seat.

[0054] In the description of this specification, the descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific example", "one specific embodiment" or "some examples", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0055] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the scope disclosed by the present invention, according to the technical solution of the present invention and the concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. An armrest for a seat, characterized in that, The overall armrest is suitable for being installed on one side of the seat board of a seat and can extend forward towards the seat board; The armrest includes a first support rod, a second support rod and a load-bearing unit; One side surface of the first support rod is slidably connected to one side of the seat board; The extending directions of the two ends of the second support rod are the same as those of the two ends of the first support rod. The front end of the first support rod can extend out of the front end of the seat board by a first preset length; the second support rod is slidably connected to the front end of the first support rod, and the front end of the second support rod can extend out of the front end of the first support rod by a second preset length; The load-bearing unit is rotatably connected to the front end of the second support rod; The load-bearing unit includes suspension arms. There are two suspension arms, which are arranged opposite to each other, and the rear ends of both are fixedly connected to the front end surface of the second support rod; Each of the suspension arms is an arc-shaped structure. The concave sides of the two suspension arms face each other, and the convex sides face away from each other. There is a preset distance between the front ends, and the two suspension arms form a circular ring structure. The middle of each suspension arm is hollow to form a through hole, and the convex side of each suspension arm is chamfered; A first guiding hole is formed in the second support rod, and a first installation hole is formed in the front end of the first support rod. The first support rod and the second support rod are fixedly connected through the first installation hole and the first guiding hole by using a first adjusting nut; 2. A seat, characterized in that, It includes a seat board and the armrest according to claim 1; The first support rod of the armrest is slidably connected to one side of the seat board; It further includes a guiding box; The guiding box is hollow, and the two opposite ends respectively extend towards the front end and the rear end of the seat board. The front end is an open structure, and the top surface is fixedly connected to the bottom surface of one side of the seat board; Inner side surfaces of the two opposite side walls of the guiding box are respectively provided with first guide rails, and the two ends of the first guide rails extend along the axial direction of the guiding box; Correspondingly, two opposite side surfaces of the first support rod are respectively provided with first installation grooves adapted to the first guide rails; the first support rod and the guiding box are slidably connected through the first installation grooves and the first guide rails; 3. The seat according to claim 2, wherein A rotating shaft is provided at the rear end of the first support rod; Second installation holes are respectively formed in the middle of the rotating shaft and the front end of the guiding box. The rotating shaft and the front end of the guiding box can be fixedly connected through the second installation holes by using a second adjusting bolt; 4. The seat according to claim 3, characterized in that, The seat board, the guiding box and the first support rod are all made of steel; The second support rod and the load-bearing unit of the armrest are both made of plastic; The seat board and the guiding box are fixedly connected by welding; 5. The seat according to claim 3, characterized in that, Second guiding holes are respectively formed on the two opposite sides of the seat board; Two opposite hole walls of the second guiding holes are respectively provided with second guide rails, and the two ends of the second guide rails extend along the axial direction of the second guiding holes; Correspondingly, two opposite side surfaces of the first support rod are respectively provided with second installation grooves adapted to the second guide rails; the first support rod and the hole walls of the second guiding holes are slidably connected through the second installation grooves and the second guide rails;

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