Chair back
The chair back design allows arm stretching in a seated position and waist support, addressing the limitations of traditional chair backs by incorporating inwardly recessed edges and forward-curving lower parts for enhanced comfort.
Patent Information
- Application Number
- CN202422503588.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-10-16
AI Technical Summary
The width of the traditional chair back is larger than the human shoulder, which causes the user to be unable to move the shoulders in a sitting position after sitting for a long time, and the chair back cannot effectively support the waist, affecting the user experience.
A chair back is designed, the upper sides of the main body are retracted inward to form a retreat position, and the flange is bent behind the edge of the allowance position, the lower part is bent front, the flange is smoothly connected, and the connecting part is provided at both ends of the skeleton, and the width of the main body is gradually designed to adapt to the human body curve.
In a sitting position, the user can extend his arms and move his shoulders back to avoid scratches and flange the waist to improve the comfort and safety of use.
Smart Images
Figure CN223095134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of chairs, in particular to a chair backrest. Background Art
[0002] For the backrest of a traditional chair, in order to better support the user's shoulders, the width of the backrest is greater than the width of the user's shoulders. After sitting for a long time, the user often needs to move the shoulders to stretch the body. Since the width of the backrest is greater than the width of the user's shoulders, the user cannot stretch the arms backward to move the shoulders in a sitting position and needs to stand up to stretch the arms to move the shoulders. At the same time, when the user tilts the body left and right, the traditional backrest cannot well support the user's waist.
[0003] Therefore, a backrest is proposed to solve the above problems. Summary of the Utility Model
[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a backrest that facilitates the user to move the shoulders and can better support the user's waist.
[0005] The technical solution adopted by the utility model to solve the problem is: a backrest, including a main body, the two sides of the upper part of the main body contract inward to form an avoidance position, a first flanging is bent backward along the edge of the avoidance position, the lower part of the main body is bent forward to form a second flanging, and the first flanging extends downward and is smoothly connected to the second flanging.
[0006] As a further improvement of the above technical solution, the included angle between the first flanging and the main body is 45 to 90 degrees.
[0007] As a further improvement of the above technical solution, the upper part of the main body is bent forward with a third flanging, and the third flanging is smoothly connected to the first flanging.
[0008] As a further improvement of the above technical solution, a fourth flanging is bent forward between the first flanging and the second flanging, and the upper and lower ends of the fourth flanging are respectively and smoothly connected to the first flanging and the second flanging.
[0009] As a further improvement of the above technical solution, it further includes a skeleton, both ends of the skeleton are provided with neatly arranged connecting parts, and the ends of the connecting parts are fixedly connected to the inner side edges of the main body.
[0010] As a further improvement of the above technical solution, the edges of the skeleton and the connecting parts are arc-shaped.
[0011] As a further improvement of the above technical solution, the edges of the skeleton and the connecting parts are straight-line shaped.
[0012] As a further improvement of the above technical solution, the width of the upper part of the main body is smaller than that of the lower part; the width range of the upper part of the main body is 250 - 300 mm; the width range of the lower part of the main body is 300 - 400 mm; the height range of the main body is 600 - 800 mm.
[0013] The beneficial effects of the present utility model are as follows: After a user sits for a long time and is in a sitting posture, the user can stretch the arm backward through the avoidance position to move the shoulder. The user can stretch the arm to move the shoulder without getting up. By fitting the first flanging with the user's arm, it can prevent the user from scratching the edge of the chair back when stretching the arm, causing discomfort. And when the user tilts the upper body left and right, the second flanging can support the user's waist to prevent the user from falling off the seat. This chair back can bring a better user experience to the user. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] The present utility model will be further explained below in conjunction with the drawings and specific embodiments.
[0015] Figure 1 is a perspective view of Embodiment 1 of the present utility model;
[0016] Figure 2 is a front view of Embodiment 1 of the present utility model;
[0017] Figure 3 is a side view of Embodiment 1 of the present utility model;
[0018] Figure 4 is a perspective view of Embodiment 2 of the present utility model;
[0019] Figure 5 is a front view of Embodiment 2 of the present utility model;
[0020] Figure 6 is a side view of Embodiment 2 of the present utility model;
[0021] Figure 7 is a front view of Embodiment 3 of the present utility model;
[0022] Figure 8 is a side view of Embodiment 3 of the present utility model;
[0023] Figure 9 is a front view of Embodiment 4 of the present utility model;
[0024] Figure 10 is a side view of Embodiment 4 of the present utility model.
[0025] In the figures: 1 - main body, 2 - avoidance position, 3 - first flanging, 4 - second flanging, 5 - third flanging, 6 - fourth flanging, 7 - skeleton, 8 - connecting part. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The function of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.
[0027] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It 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. Therefore, it should not be construed as a limitation on the present utility model.
[0028] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is more than two, greater than, less than, exceeding, etc. are understood as not including the present number, above, below, within, etc. are understood as including the present number. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0029] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0030] As shown in reference to Figures 1 to 3 , for Embodiment 1, a chair back includes a main body 1. The upper part on both sides of the main body 1 contracts inward to form an avoidance position 2. A first flanging 3 is bent backward along the edge of the avoidance position 2. The lower part of the main body 1 is bent forward to form a second flanging 4. The first flanging 3 extends downward and is smoothly connected to the second flanging 4.
[0031] After a user sits for a long time and is in a sitting posture, the user can stretch the arms backward through the avoidance position 2 to move the shoulders. The first flanging 3 fits with the user's arms, which can prevent the user from scratching the edge of the chair back when stretching the arms and causing discomfort. And when the user tilts the upper body left and right, the second flanging 4 can support the user's waist.
[0032] In the preferred embodiment, in order to better fit the movement range of the user's arms, the included angle between the first flanging 3 and the main body 1 is 45 to 90 degrees.
[0033] In the preferred embodiment, as shown in reference to Figures 4 to 6 , the upper part of the main body 1 is bent forward to have a third flanging 5, and the third flanging 5 is smoothly connected to the first flanging 3.
[0034] In a preferred embodiment, as shown in Figure 7 and 8 , a fourth flanging 6 is bent forward between the first flanging 3 and the second flanging 4, and the upper and lower ends of the fourth flanging 6 are smoothly connected to the first flanging 3 and the second flanging 4 respectively.
[0035] In a preferred embodiment, in order to better support the user's back, a framework 7 is further included. The two ends of the framework 7 are provided with connection parts 8 arranged neatly, and the ends of the connection parts 8 are fixedly connected to the inner edge of the main body 1.
[0036] In a preferred embodiment, the edges of the framework 7 and the connection parts 8 are arc-shaped.
[0037] In a preferred embodiment, as shown in Figure 9 and 10 , the edges of the framework 7 and the connection parts 8 are linear.
[0038] In a preferred embodiment, the width of the upper part of the main body 1 is smaller than the width of its lower part;
[0039] The width range of the upper part of the main body 1 is 250 - 300 mm;
[0040] The width range of the lower part of the main body 1 is 300 - 400 mm;
[0041] The height range of the main body 1 is 600 - 800 mm.
[0042] The above are only the preferred embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structural transformation made under the inventive concept of the present utility model by using the content of the specification and drawings of the present utility model, or directly or indirectly applied to other related technical fields, is included in the patent protection scope of the present utility model.
Claims
1. A chair back, characterized in that, Comprising: A main body (1), on both sides of the upper part of the main body (1) shrink inwards to form an avoidance position (2), a first flanging (3) is bent backwards along the edge of the avoidance position (2), a second flanging (4) is bent forwards at the lower part of the main body (1), and the first flanging (3) extends downwards and is smoothly connected to the second flanging (4).
2. A backrest according to claim 1, characterized in that: The included angle between the first flanging (3) and the main body (1) is 45 to 90 degrees.
3. A backrest according to claim 2, characterized in that: A third flanging (5) is bent forwards at the upper part of the main body (1), and the third flanging (5) is smoothly connected to the first flanging (3).
4. A backrest according to claim 2, characterized in that: A fourth flanging (6) is bent forwards between the first flanging (3) and the second flanging (4), and the upper and lower ends of the fourth flanging (6) are respectively and smoothly connected to the first flanging (3) and the second flanging (4).
5. A backrest according to claim 4, characterized in that: It further comprises a skeleton (7), both ends of the skeleton (7) are provided with connection parts (8) arranged neatly, and the end parts of the connection parts (8) are fixedly connected to the inner side edges of the main body (1).
6. A backrest according to claim 5, characterized in that: The edges of the skeleton (7) and the connection parts (8) are arc-shaped.
7. A backrest according to claim 5, characterized in that: The edges of the skeleton (7) and the connection parts (8) are straight-line shaped.
8. A backrest according to claim 1, characterized in that: The width of the upper part of the main body (1) is smaller than the width of its lower part; The width range of the upper part of the main body (1) is 250 - 300 mm; The width range of the lower part of the main body (1) is 300 - 400 mm; The height range of the main body (1) is 600 - 800 mm.