Lumbar Support with Armrests Featuring Tightness Adjustment Function

Description

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority to Chinese Patent Application No. 202423199736.4, filed on Dec. 24, 2024, titled “Lumbar Support with Armrests Featuring Tightness Adjustment Function,” the entire contents of which, including any amendments made therein, are hereby incorporated by reference.

TECHNICAL FIELD

The present disclosure relates to the technical field of lumbar support with armrests, particularly to a lumbar support with armrests featuring a tightness adjustment function.

BACKGROUND

With the acceleration of modern life, prolonged sitting has become increasingly common, making the comfort and ergonomic design of chairs a focal point of attention. Although existing chairs are equipped with lumbar supports, they typically feature only simple elastic support structures, which cannot accommodate the body differences and sitting habits of various users. Prolonged use often leads to discomfort such as lower back pain.

For example, U.S. Pat. No. 6,827,402 discloses a chair with adjustable seat depth, consisting of a rigid seat cushion board and a sliding extended seat cushion board. This chair can realize adjustment of seat depth, allowing users to sit more comfortably on the cushion. Another example is U.S. Pat. No. 6,688,688, which discloses a chair with a seat panel, a central column or multiple legs, and a backrest bracket. The seat panel moves downward against the force of a spring device based on the user's weight.

However, the aforementioned chairs still have issues with inconvenient adjustment of the lumbar support structure. Additionally, existing lumbar supports often lack armrest structures, preventing users from obtaining hand support, which affects the user experience. Moreover, due to differences in body types and usage habits among users, existing lumbar supports cannot be flexibly adjusted to meet personalized needs. Fixed positions can easily lead to displacement of the lumbar support, causing numerous inconveniences during use.

SUMMARY

The present disclosure provides a lumbar support with armrests featuring a tightness adjustment function to solve the problems raised in the background technology.

To achieve the above-mentioned disclosure objective, the present disclosure adopts the following technical solution:

A lumbar support with armrests featuring a tightness adjustment function includes a lumbar support body, which includes a back support area, a lumbar support protrusion area, and a hip support area arranged from top to bottom; armrests are provided on both sides of the lumbar support body, and an elastic strap is connected between the two armrests; the elastic strap is equipped with a tightness adjustment mechanism. Built-in cylinder are embedded at the bottom of the lumbar support body, and a lifting column is installed inside the built-in cylinder; and a support plate is installed at the bottom end of the lifting column.

The present disclosure further provides a lumbar support with armrests featuring a tightness adjustment function, including: a main structure with a back support area, a lumbar support area, and a hip support area; a pair of armrest components extending from both sides of the main structure; and an elastic strap component connected to the armrest components on both side for adjusting the fit between the user's body and the main structure.

The present disclosure further provides a lumbar support with armrests featuring a tightness adjustment function, including: a vertically arranged main structure with a back support area, a lumbar support area, and a hip support area; and a pair of armrest components horizontally arranged on opposite sides of the lumbar support area; and an adjustable elastic strap component operably connected to the armrest components on both sides, the elastic strap component includes quick-release connectors respectively arranged on respective armrest components; and an elastic strap arranged between the quick-release connectors on both sides, with a tightness adjustment mechanism capable of tightness adjustment provided on the elastic strap.

BRIEF DESCRIPTION OF DRAWINGS

The drawings, which form a part of this application, are provided to further explain the present disclosure. The illustrative embodiments and the descriptions thereof are used to explain the present disclosure and do not constitute an improper limitation of the present disclosure. In the drawings:

FIG. 1 is a schematic diagram of the overall structure of the lumbar support with armrests according to the present disclosure;

FIG. 2 is a cross-sectional view of a partial structure of the lumbar support with armrests shown in FIG. 1;

FIG. 3 is a schematic diagram of the overall structure of the lumbar support with armrests according to the present disclosure;

FIG. 4 is an enlarged view of the structure of part A of the lumbar support with armrests shown in FIG. 3;

FIG. 5 is an enlarged view of the structure of part B of the lumbar support with armrests shown in FIG. 3.

The above drawings include the following reference signs:

Lumbar support body (1); Backrest area (2); Lumbar support protrusion area (3); Hip support area (4); armrest (5); Fixing looped belt (6); Mounting buckle (7); Tightness adjustment buckle (8); Elastic strap (9); Hook (10); Built-in cylinder (11); Lifting column (12); Support plate (13).

DESCRIPTION OF EMBODIMENTS

The technical solution in the embodiment of the present disclosure will be clearly and completely described below with reference to the drawings. Obviously, the described embodiment is part of, rather than all of the embodiments of the present disclosure. The following description of at least one exemplary embodiment is illustrative in nature and is in no way intended to limit the present disclosure, its application or uses. Based on the embodiments in the present disclosure, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present disclosure.

It should be noted that the terminology used here is only for describing specific embodiments, and is not intended to limit exemplary embodiments according to the present application. As used herein, the singular form is also intended to include the plural form unless the context clearly indicates otherwise. Furthermore, it should be appreciated that when the terms “comprising” and/or “including” are used in this specification, they specify the presence of features, steps, operations, devices, components and/or combinations thereof.

Unless otherwise specified, the relative arrangement of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure. At the same time, it should be appreciated that for the convenience of description, the dimensions of various parts shown in the drawings are not drawn according to the actual scale relationship. Techniques, methods and equipment known to those skilled in the art may not be discussed in detail, but in appropriate cases, they should be regarded as part of the authorization specification. In all the examples shown and discussed herein, any specific values should be interpreted as illustrative, and not as limiting. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters indicate similar items in the following drawings, therefore once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

Specific embodiments are given below.

Referring to FIGS. 1-5, a lumbar support with armrests featuring a tightness adjustment function includes a lumbar support body 1, which is designed based on the physiological characteristics of the human back, waist, and hips. The lumbar support body 1 includes a back support area 2, a lumbar support protrusion area 3, and a hip support area 4, arranged from top to bottom.

The lumbar support protrusion area 3 includes a forward protruding curved protrusion, gradually transitioning side wing support surfaces, and a deformable internal cushion layer. The lumbar support protrusion area 3 conforms to ergonomic principles, providing comprehensive, comfortable, and effective support for the waist. On both sides of the lumbar support body 1, armrests 5 are integrally formed. An elastic strap 9 connects the two armrests 5, and a tightness adjustment mechanism is installed on the elastic strap 9. This mechanism allows the lumbar support to be flexibly adjusted according to the body size and usage habits of different users, ensuring that the lumbar support fits tightly against the user's back and prevents displacement.

Referring to FIGS. 3-5, in this embodiment, both armrests 5 are equipped with fixing looped belts 6. The tightness adjustment mechanism includes mounting buckles 7 and a tightness adjustment buckle 8. There are two mounting buckles 7, each set at one end of the elastic strap 9. One end of the mounting buckle 7 is equipped with a hook 10, which connects the mounting buckle 7 to the fixing looped belt 6. This hook connection method makes the installation and removal of the mounting buckle 7 and the fixing looped belt 6 very convenient, allowing users to quickly detach the elastic strap 9 from the armrests 5 as needed. One end of the elastic strap 9 is connected to one mounting buckle 7, while the other end passes through the tightness adjustment buckle 8 and another mounting buckle 7 before passing through the tightness adjustment buckle 8 again. When adjusting the tightness of the elastic strap 9, the user only needs to move the tightness adjustment buckle 8 to make slide along the elastic strap 9 to easily adjust the tightness of the elastic strap 9, thereby securely fastening the lumbar support body 1 to the user's back. In other embodiments, only one mounting buckle 7 is set, with one end of the elastic strap 9 connected to the mounting buckle 7 and the tightness adjustment buckle 8, and the other end fixed to the armrest 5.

In addition to the aforementioned connection methods, in other embodiments (not shown), the elastic strap can be adjusted using hook-and-loop fasteners. Specifically, one side of the elastic strap 9 is equipped with the loop side of the hook-and-loop fastener, while the other side is equipped with the hook side. By simply adjusting the position of the hook-and-loop fastener, users can easily adjust the tightness of the elastic strap 9.

Furthermore, a buckle adjustment method can also be employed. A series of equally spaced buckle holes are set on the elastic strap 9, and corresponding buckle protrusions are set on the tightness adjustment buckle 8. By inserting the buckles into different buckle holes, the length of the elastic strap 9 can be adjusted, thereby achieving the tightness adjustment. Both adjustment methods are simple and quick, meeting the diverse needs of different users for tightness levels.

Referring to FIGS. 1 and 2, the bottom of the lumbar support body 1 is equipped with a height adjustment mechanism, which includes built-in cylinders 11 and lifting columns 12. The built-in cylinders 11 are embedded and installed at the bottom of the lumbar support body 1. The lifting column 12 is installed inside the built-in cylinders 11, and a support plate 13 is installed at the bottom of the lifting column 12. The support plate 13 is designed to be placed on the cushions of various types of chairs, such as common office chairs and various furniture chairs. The support plate 13 increases the contact area between the lumbar support and the cushion. When the user leans on the lumbar support, whether it's a slight body sway or a more significant turning movement, the support plate 13 ensures that the lumbar support remains firmly in place without easily shifting, thereby enhancing the stability of the placement of the lumbar support.

In this embodiment, there are four built-in cylinders 11, distributed on both sides of the bottom of the lumbar support body 1, with two built-in cylinders 11 on each side positioned front and back. Correspondingly, there are also four lifting columns 12. With this reasonable arrangement, the pressure exerted on the lumbar support body 1 during use is evenly distributed across each lifting column 12, effectively avoiding stress concentration issues and improving the stability and lifespan of the lumbar support during use.

In practical use, the user only needs to rotate the lifting column 12. Due to the transmission effect of the threads, the lifting column 12 will perform telescopic movement inside the built-in cylinder 11, thereby adjusting the position of the support plate 13, and ultimately achieving the height adjustment of the lumbar support body 1 to adapt to different usage scenarios and user needs. In other embodiments, the bottom of the built-in cylinder is threadedly connected with a bolt, the threaded section of the bolt constitutes the lifting column, and the head of the bolt constitutes the support plate.

In other embodiments (not shown), the height adjustment mechanism of the lumbar support adopts the form of a telescopic sleeve. Specifically, the side wall of the built-in cylinder 11 is provided with multiple positioning holes distributed at intervals, and the lifting column 12 is set as a hollow cylinder with an elastic positioning pin installed inside. Through the cooperation of the elastic positioning pin and the positioning holes, the height adjustment of the lifting column 12 can be achieved. In practical use, the user can quickly position the lumbar support to the desired height according to their actual needs.

Working principle: the lumbar support body 1 is placed on a chair for use. The backrest area 2 closely fits the human back, providing stable support for the back; the lumbar support protrusion area 3 precisely fits the waist, providing comfortable and effective support for the waist; the hip support area 4 fits the hips, sharing the weight of the upper body and reducing the pressure on the hips; the armrests 5 provide support for the hands, allowing the user to relax their hands while sitting. At the same time, the user can adjust the position of the elastic strap 9 between the mounting buckles 7 by moving the tightness adjustment buckle 8 according to their body shape and usage habits, thereby firmly securing the lumbar support body 1 to the back and preventing it from shifting. In addition, the user can also rotate the lifting column 12 to make it telescopic inside the built-in cylinder 11, thereby adjusting the overall height of the lumbar support body 1 when placing it to adapt to the height of different chairs and personal usage needs.

In summary, the present disclosure achieves the following technical effects:

The present disclosure provides a lumbar support with an armrest structure. The armrests 5 are designed to provide comfortable support for the hands, effectively alleviating hand fatigue during prolonged sitting. At the same time, the lumbar support features a tightness adjustment function. With the elastic strap 9 within the tightness mechanism, users can easily adjust the fit of the lumbar support according to their body size and personal preferences, ensuring that the lumbar support does not shift or move, thereby enhancing convenience and stability during use. Additionally, the overall design of the lumbar support body 1 conforms to the natural curve of the human waist, with each area providing excellent support for the back, waist, and hips, significantly improving comfort. Moreover, the lumbar support also includes a height adjustment function. By rotating the lifting column 12 to extend or retract within the built-in cylinder 11, the overall height of the lumbar support body 1 can be flexibly adjusted to accommodate different usage scenarios and chair heights, further enhancing the product's applicability and practicality.

In the description of the present disclosure, it should be appreciated that directional terms such as “front, rear, up, down, left, right”, “horizontal, vertical, perpendicular, horizontal” and “top, bottom” etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description. In the absence of a contrary explanation, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present disclosure; the directional terms “inside, outside” refer to the inside and outside relative to the contour of each component itself.

For the convenience of description, spatial relative terms such as “on . . . ”, “above . . . ”, “on the upper surface of . . . ”, “upper” etc. may be used here to describe the spatial positional relationship of a device or feature with other devices or features as shown in the drawings. It should be appreciated that spatial relative terms are intended to encompass different orientations of the device in use or operation other than the orientation described in the drawings. For example, if the device in the drawing is inverted, the device described as “above other devices or structures” or “on other devices or structures” will subsequently be positioned as “below other devices or structures” or “under other devices or structures”. Thus, the exemplary term “above” can include both “above” and “below” orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used here should be interpreted accordingly.

In addition, it should be noted that the use of terms such as “first”, “second” etc. to define components is for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning, and therefore should not be understood as limiting the scope of protection of the present disclosure.

The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. For those skilled in the art, the present disclosure can have various modifications and changes. Any modifications, equivalent replacements, improvements etc. made within the spirit and principles of the present disclosure should be included within the scope of protection of the present disclosure.