A parametric seat

Abstract

This utility model relates to the field of seat structure technology and discloses a parametric seat, including a seat body. The seat body includes a support seat, support legs, an arc-shaped lumbar support part, and a fixed back support plate. The support legs are fixed to the bottom perimeter of the support seat, and the arc-shaped lumbar support part is fixed to the top left side of the support seat. The fixed back support plate is fixed above the arc-shaped lumbar support part. It also includes a buffer mechanism and a backrest adjustment mechanism. The buffer mechanism includes mounting parts fixed to the front and rear of the top left side of the support seat and the front and rear of the left side of the fixed back support plate. A rotating sleeve is rotatably mounted inside the mounting parts fixed to the top of the support seat. This technical solution provides better buffering and reinforcement of the arc-shaped lumbar support part, making it more suitable for people of various weights to lean against, and the usable length of the backrest can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of seat structure technology, specifically a parametric seat. Background Technology

[0002] Parametric seating is a modern furniture design method that uses computer algorithms and parameter settings to dynamically optimize the shape, structure, and function of furniture. By designing unique structures, it can better fit the human body and achieve greater comfort.

[0003] Parametric chair designs in the prior art are specific shapes that better fit the human body and ensure greater comfort when sitting. For example, an arc-shaped lumbar support plate is set behind the seat to better protect the user's lower back and increase the user's comfort when using the chair.

[0004] However, there are still shortcomings in actual use: for example, when people of different weights use the chair, the load-bearing force of the seat back is different, which makes the curved lumbar support plate easy to be damaged. Moreover, the length of the seat back in the existing technology is relatively fixed, and it is not possible to adjust the length according to the needs.

[0005] In view of this, this technical solution proposes a parametric seat to better address the problems mentioned above. Utility Model Content

[0006] The technical solution adopted by this utility model is as follows: a parameterized seat, including a seat body, the seat body including a support seat, support legs, an arc-shaped waist support part and a fixed back support plate, the support legs are fixed around the bottom of the support seat, the arc-shaped waist support part is fixed on the top left side of the support seat, and a fixed back support plate is fixed above the arc-shaped waist support part.

[0007] Also includes:

[0008] Cushioning mechanism and backrest adjustment mechanism;

[0009] The buffer mechanism includes mounting parts fixed to the front and rear left sides of the top of the support seat and the front and rear left sides of the fixed back support plate. A rotating sleeve is rotatably mounted inside the mounting parts fixed to the top of the support seat. A movable rod is rotatably mounted inside the mounting parts fixed to the left side of the fixed back support plate, and the movable rod is inserted into the rotating sleeve. A spring is fixed to the bottom of the rotating sleeve. A guide plate is fixed to the bottom of the movable rod, and the guide plate is fixed to the upper end of the spring. A limiting ring is sleeved on the movable rod, and the limiting ring is fixed to the end of the rotating sleeve.

[0010] The backrest adjustment mechanism includes a movable back support plate and a limiting guide plate that are movably inserted into the fixed back support plate. The fixed back support plate and the limiting guide plate are internally threaded with fixing bolts. A head support plate is fixed to the upper end of the movable back support plate and the limiting guide plate, and a headrest is provided on the right side of the head support plate.

[0011] In a preferred embodiment, the arc-shaped waist support portion is an integral structure with the support seat and the fixed back support plate, and the arc-shaped waist support portion is made of an elastic material with good toughness and strength. The support legs are detachably installed around the bottom of the support seat.

[0012] In a preferred embodiment, a cushion is provided on the top right side of the support seat, and the left side of the cushion is adapted to the angle between the arc-shaped waist support part and the support seat.

[0013] In a preferred embodiment, the mounting component has a U-shaped structure, and the rotating sleeve and the movable rod are rotatably mounted on the inner side of the mounting component through a rotating shaft and bearing cooperation.

[0014] In a preferred embodiment, the diameter of the guide disc is adapted to the inner diameter of the rotating sleeve, and the limiting ring and the rotating sleeve are detachably installed by bolts.

[0015] In a preferred embodiment, the fixed back support plate has an adjustment groove and a storage groove inside, the movable back support plate is inserted into the adjustment groove, and the limiting guide plate is inserted into the storage groove.

[0016] In a preferred embodiment, the fixed back support plate and the limiting guide plate are provided with threaded holes adapted to the fixing bolts, and the fixing bolts are threaded into the threaded holes. The threaded holes on the side of the limiting guide plate are linearly and equidistantly distributed.

[0017] In a preferred embodiment, the bolt head of the fixing bolt is fixed with an operating plate for easy manual rotation of the fixing bolt.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of this utility model are: this technical solution better buffers and reinforces the arc-shaped waist support position, making the arc-shaped waist support better suitable for people of various weights to lean on, and the usable length of the backrest can be adjusted.

[0019] 1. In this utility model, when adjusting the backrest length, the fixing bolt is rotated by the operating plate, so that the fixing bolt is removed from the threaded hole inside the limiting guide plate. At this time, the limiting guide plate can be pulled out from the inside of the storage slot by the head support plate, and the movable back support plate moves in position inside the adjustment slot. At this time, the movable back support plate plays a better role in assisting the lean. When it is moved to the appropriate position, the fixing bolt is rotated into the threaded hole in the matching position inside the limiting guide plate by the operating plate, so that the position of the limiting guide plate can be locked, and the positions of the movable back support plate and the head support plate are fixed at the same time.

[0020] 2. In this utility model, the user sits on the cushion on top of the support seat, with the user's back resting against the fixed back support plate and the movable back support plate, and the user's head resting against the head support plate and the headrest. When the fixed back support plate is subjected to greater force, the curved waist support part deforms, and the movable rod moves inside the rotating sleeve and drives the spring to compress, which can buffer the curved waist support part, making it easier to better protect the curved waist support part and making it less prone to damage. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This utility model Figure 1 Enlarged schematic diagram of the structure of region A in the middle;

[0023] Figure 3 This utility model Figure 1 Enlarged schematic diagram of the structure of region B in the middle;

[0024] Figure 4 This is a half-sectional schematic diagram of the installation structure of the rotating sleeve and the movable rod of this utility model.

[0025] Markings in the diagram: 1-Support seat; 2-Support leg; 3-Arched waist support; 4-Fixed back support plate; 5-Seat cushion; 6-Installation piece; 7-Rotating sleeve; 8-Moving rod; 9-Spring; 10-Guide plate; 11-Limiting ring; 12-Adjustment groove; 13-Storage groove; 14-Movable back support plate; 15-Limiting guide plate; 16-Threaded hole; 17-Fixing bolt; 18-Operating panel; 19-Head support plate; 20-Headrest. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] The following will combine Figures 1-4 A parametric seat according to an embodiment of the present invention will be described in detail.

[0028] refer to Figures 1-4 As shown, this utility model provides an embodiment of a parametric seat, which aims to solve the problems existing in the prior art, such as the different load-bearing forces on the seat back when people of different weights use the seat, which makes the curved lumbar support plate easily damaged, and the relatively fixed length of the seat back in the prior art, which cannot be well adjusted.

[0029] A parametric seat includes a seat body, which includes a support seat 1, support legs 2, an arc-shaped lumbar support part 3, and a fixed back support plate 4. The support legs 2 are fixed around the bottom of the support seat 1, and the arc-shaped lumbar support part 3 is fixed on the top left side of the support seat 1. The arc-shaped lumbar support part 3, the support seat 1, and the fixed back support plate 4 are integrally formed, and the arc-shaped lumbar support part 3 is made of an elastic material with good toughness and strength. The support legs 2 are detachably installed around the bottom of the support seat 1. The fixed back support plate 4 is fixed above the arc-shaped lumbar support part 3. A seat cushion 5 is provided on the top right side of the support seat 1, and the left side of the seat cushion 5 is adapted to the angle between the arc-shaped lumbar support part 3 and the support seat 1.

[0030] Also includes:

[0031] Cushioning mechanism and backrest adjustment mechanism;

[0032] The buffer mechanism includes mounting parts 6 fixed to the front and rear left sides of the top of the support seat 1 and the front and rear left sides of the back support plate 4. A rotating sleeve 7 is rotatably mounted inside the mounting part 6 fixed to the top of the support seat 1. A movable rod 8 is rotatably mounted inside the mounting part 6 fixed to the left side of the back support plate 4, and the movable rod 8 is inserted into the rotating sleeve 7. The mounting part 6 has a U-shaped structure, and the rotating sleeve 7 and the movable rod 8 are rotatably mounted inside the mounting part 6 through the cooperation of a rotating shaft and a bearing. A spring 9 is fixed to the bottom of the inner part of the rotating sleeve 7, and a guide plate 10 is fixed to the bottom of the movable rod 8. The guide plate 10 is fixed to the upper end of the spring 9. The diameter of the guide plate 10 is adapted to the inner diameter of the rotating sleeve 7. A limiting ring 11 is sleeved on the movable rod 8 and fixed to the end of the rotating sleeve 7. The limiting ring 11 and the rotating sleeve 7 are detachably installed by bolts.

[0033] The backrest adjustment mechanism includes a movable backrest support plate 14 and a limiting guide plate 15 that are movably inserted into the fixed backrest support plate 4. The fixed backrest support plate 4 has an adjustment groove 12 and a storage groove 13 inside. The movable backrest support plate 14 is inserted into the adjustment groove 12, and the limiting guide plate 15 is inserted into the storage groove 13. The fixed backrest support plate 4 and the limiting guide plate 15 are threadedly connected to fixing bolts 17. The fixed backrest support plate 4 and the limiting guide plate 15 have threaded holes 16 that are adapted to the fixing bolts 17 inside, and the fixing bolts 17 are threadedly connected to the threaded holes 16. The threaded holes 16 on the side of the limiting guide plate 15 are linearly and equidistantly distributed. The bolt head of the fixing bolt 17 is fixed with an operating plate 18 for easy manual rotation of the fixing bolt 17. The upper end of the movable backrest support plate 14 and the limiting guide plate 15 is fixed with a head support plate 19, and a headrest 20 is provided on the right side of the head support plate 19.

[0034] Advantages of this application: This technical solution provides better cushioning and reinforcement for the curved waist support part 3, making it more suitable for people of various weights to lean on, and the length of the backrest can be adjusted.

[0035] Working principle: When adjusting the backrest length, the fixing bolt 17 is rotated by the operating plate 18, so that the fixing bolt 17 is removed from the threaded hole 16 inside the limiting guide plate 15. At this time, the limiting guide plate 15 can be pulled out from the storage groove 13 by the head support plate 19, and the movable back support plate 14 moves in position inside the adjustment groove 12. At this time, the movable back support plate 14 plays a better role in assisting the backrest. When it is moved to the appropriate position, the fixing bolt 17 is rotated into the threaded hole 16 inside the limiting guide plate 15 by the operating plate 18, so that the position of the limiting guide plate 15 can be locked. At the same time, the positions of the movable back support plate 14 and the head support plate 19 are fixed.

[0036] The user sits on the cushion 5 on top of the support seat 1, with the user's back resting against the fixed back support plate 4 and the movable back support plate 14, and the user's head resting against the head support plate 19 and the headrest 20. When the fixed back support plate 4 is subjected to greater force, the curved waist support part 3 deforms, and the movable rod 8 moves inside the rotating sleeve 7 and drives the spring 9 to compress, which can buffer the curved waist support part 3, making it easier to better protect the curved waist support part 3 and prevent it from being damaged.

[0037] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A parametric seat, comprising a seat body, the seat body comprising a support seat (1), a support leg (2), an arc-shaped waist support part (3) and a fixed back support plate (4), wherein the support leg (2) is fixed around the bottom of the support seat (1), the arc-shaped waist support part (3) is fixed on the top left side of the support seat (1), and the fixed back support plate (4) is fixed above the arc-shaped waist support part (3). Its features are, Also includes: Cushioning mechanism and backrest adjustment mechanism; The buffer mechanism includes mounting parts (6) fixed on the front and back left sides of the top of the support seat (1) and on the front and back left sides of the fixed back support plate (4). A rotating sleeve (7) is rotatably mounted inside the mounting part (6) fixed on the top of the support seat (1). A movable rod (8) is rotatably mounted inside the mounting part (6) fixed on the left side of the fixed back support plate (4). The movable rod (8) is inserted into the rotating sleeve (7). A spring (9) is fixed at the bottom of the inner side of the rotating sleeve (7). A guide plate (10) is fixed at the bottom of the movable rod (8). The guide plate (10) is fixed to the upper end of the spring (9). A limiting ring (11) is sleeved on the movable rod (8). The limiting ring (11) is fixed to the end of the rotating sleeve (7). The backrest adjustment mechanism includes a movable back support plate (14) and a limiting guide plate (15) that are movably inserted into the fixed back support plate (4). The fixed back support plate (4) and the limiting guide plate (15) are internally threaded with fixing bolts (17). A head support plate (19) is fixed at the upper end of the movable back support plate (14) and the limiting guide plate (15), and a headrest (20) is provided on the right side of the head support plate (19).

2. A parametric seat as described in claim 1, characterized in that: The arc-shaped waist support part (3) is an integral structure with the support seat (1) and the fixed back support plate (4), and the arc-shaped waist support part (3) is an elastic material with good toughness and strength. The support leg (2) can be detachably installed around the bottom of the support seat (1).

3. A parametric seat as described in claim 2, characterized in that: A cushion (5) is provided on the top right side of the support seat (1), and the left side of the cushion (5) is adapted to the angle between the arc-shaped waist support part (3) and the support seat (1).

4. A parametric seat as described in claim 1, characterized in that: The mounting component (6) has a U-shaped structure, and the rotating sleeve (7) and the movable rod (8) are rotatably mounted on the inner side of the mounting component (6) through the cooperation of the rotating shaft and bearing.

5. A parametric seat as described in claim 1, characterized in that: The diameter of the guide plate (10) is adapted to the inner diameter of the rotating sleeve (7), and the limiting ring (11) and the rotating sleeve (7) are detachably installed by bolts.

6. A parametric seat as described in claim 1, characterized in that: The fixed back support plate (4) has an adjustment groove (12) and a storage groove (13) inside. The movable back support plate (14) is inserted into the adjustment groove (12), and the limiting guide plate (15) is inserted into the storage groove (13).

7. A parametric seat as described in claim 1, characterized in that: The fixed back support plate (4) and the limiting guide plate (15) have threaded holes (16) inside that are adapted to the fixing bolts (17), and the fixing bolts (17) are threaded in the threaded holes (16). The threaded holes (16) on the side of the limiting guide plate (15) are linearly and equidistantly distributed.

8. A parametric seat as described in claim 1, characterized in that: The head of the fixing bolt (17) is fixed with an operation plate (18) for easy manual rotation of the fixing bolt (17).

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