CN219803518U - A lumbar support and a seat - Google Patents

Abstract

The utility model relates to the field of seat design and manufacture, in particular to a waist and back design of a seat. The technical aim of the utility model is realized by the following technical scheme: the utility model provides a press from both sides waist and hold in palm, contains back of body support, with human waist back is contradicted and with the elastomer that back of body frame is connected, the support contain the master support and with the master support rotates the auxiliary support of being connected, auxiliary support with back of body frame sliding connection, the elastomer with the master support is connected, and elasticity drive the master support is at fore-and-aft direction removal. The utility model aims to overcome the defects of the prior art and provide the waist support and the seat, wherein the waist support not only can effectively support the waist and back of a user, but also can provide dynamic and variable supporting effects, and the comfort of the seat is improved.

Description

A lumbar support and a seat

Technical field

The utility model relates to the field of seat design and manufacturing, specifically to the design of the waist and back of the seat.

Background technique

Seats are a very versatile piece of furniture in daily life and work. They usually include bases, backrests, support structures, armrests and other components. For example, the Chinese patent document with the publication number CN201620974125.9 discloses a seat. During use, people can get support from the back, waist, buttocks, and armrests, which increases the comfort of the human body.

During the use of the seat, the support area between the seat and the human body's waist and back is large, and this position is a major support force position. Therefore, the friction structure of the seat against the human body's waist and back largely determines Improves seat comfort. In order to enhance the friction experience of the lower back, elastic moving structures are often used to design the lower back of the seat.

For example, the Chinese patent document with the publication number CN201621312965.5 discloses an automatic telescopic lumbar support structure for use on seats. The spring is connected between the lumbar support and the backrest, and the spring extends in the horizontal direction, so that the lumbar support is stretched by the elastic force of the spring. Driven by the movement, stretch forward and close to the waist and back of the human body. However, such a technical solution also has certain defects, that is, the supporting effect of the lumbar support on the human body's lower back is monotonous and unchanged. In actual use by users, there are normal office states and resting states. In the normal office state, the human body tends to lean forward, closer to desks, monitors and other objects, while in the resting state, the human body leans back and is farther away from desks and monitors. . The telescopic lumbar support with this structure provides the same support mode in these two states, which is relatively monotonous and cannot provide different support and resistance effects.

Utility model content

The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a waist-clip lumbar support and a seat. The lumbar support can not only effectively support the user's waist and back, but also provide dynamic and changing support effects, improving Seat comfort.

The above technical objectives of the present invention are achieved through the following technical solutions: a waist-clip waist support, which includes a back frame, a support body that resists the human body's waist and an elastic body connected to the back frame, and the support body It includes a main bracket and an auxiliary bracket that is rotationally connected to the main bracket. The auxiliary bracket is slidingly connected to the back frame. The elastic body is connected to the main bracket, and the elastic force drives the main bracket to move in the front and rear direction.

As a preferred feature of the present invention, the auxiliary bracket and the main bracket are connected through a flip device, and the flip device includes a connecting arm connected to the main bracket and a connecting barrel connected to the auxiliary bracket. A through opening is provided on the connecting arm, and the turning device further includes a rotation shaft that passes through the through opening and is connected to the connecting barrel.

As a preferred option of the present invention, there are two auxiliary supports, and the main support is located between the two auxiliary supports.

As a preferred option of the present invention, the back frame includes a support part and side extension parts located on both sides of the support part, the elastic body is connected to the support part, and the auxiliary support is slidingly connected to the side extension part. On the top, the back frame is arc-shaped, with the center of the arc directed forward.

As a preferred feature of the present invention, a sliding pin is installed on the auxiliary support, and a slideway that cooperates with the sliding pin is provided on the side extension.

As a preferred embodiment of the present invention, the back frame further includes an upper connecting portion extending in a vertical direction, and the upper connecting portion is located directly above the supporting portion.

As a preferred feature of the present invention, the support portion is provided with a back portion protruding and extending toward the rear at a central position.

As a preferred feature of the present invention, the main support is provided with a front abutment portion protruding forward.

As a preferred option of the present invention, the elastic body is a spring or a cylinder.

A seat includes the waist-clip waist support, a stool, a main back and chair legs, the main back is connected to the back frame, and the chair legs are connected to the stool.

To sum up, the present utility model has the following beneficial effects:

1. The lumbar support can not only effectively support the user's waist and back, but also provide dynamic and changing support effects to improve seat comfort.

2. This case adopts the design of "split setting and bracket adjustment". In the user's working state, when the waist is tilted forward, the entire support body provides a large area and flat support effect to the user's waist.

3. When the user is resting, the entire support body has the effect of clamping and arc-shaped support for the user's waist, and has strong wrapping properties.

4. Due to the extension distance of the connecting arm, the auxiliary support rotates more smoothly and does not interfere with the main support; the rotation is more stable and the flipping device is stronger.

5. In the middle of the support part, there is a back part that protrudes toward the rear. The back design facilitates the installation of larger elastomers. The protrusion of the back part can be thickened to ensure better structural support for the elastomer. support.

6. The main back can be connected to the upper connecting part at different heights, making the installation height of the entire waist support flexible and adjustable.

Description of the drawings

Figure 1 is a schematic diagram of Embodiment 1;

Figure 2 is a schematic diagram from another direction of Figure 1;

Figure 3 is a schematic diagram of Figure 2 after the back frame is hidden.

In the figure: 1. Support body, 11. Main support, 111. Front supporting part, 12. Auxiliary support, 2. Back frame, 21. Support part, 211. Rear part, 22. Side extension part, 23. Upper connection Part, 3. Elastomer, 31. Cylinder, 32. Spring, 4. Turning device, 41. Connecting arm, 411. Through port, 42. Connecting barrel, 5. Sliding pin.

Detailed ways

The utility model will be further described in detail below in conjunction with the accompanying drawings.

This specific embodiment is only an explanation of the present utility model, and it is not a limitation of the present utility model. Those skilled in the art can make modifications to this embodiment without creative contribution as needed after reading this description. However, as long as the present utility model is used, All new types of patents are protected by patent law within the scope of their claims.

Embodiment 1, as shown in Figure 1, a waist-clip lumbar support includes a back frame 2, and the back frame 2 is a structural frame. As shown in FIG. 2 , the back frame 2 has an arc-shaped design as a whole, including a middle support portion 21 , and a side extension portion 22 arranged on both sides of the support portion 21 . There is an arc-shaped bracket integrally formed by the support portion 21 and the side extension portion 22, with the arc center direction facing forward.

In this case, it is defined that the user is sitting on a seat, facing forward as the front, back as the back, and the left and right hands as the left and right sides.

One end of the elastic body 3 is installed on the support part 21 and the other end is installed on the support body 1 to provide elastic force to the support body 1 . The support body 1 is a component that directly contacts the lower back of the human body, and the elastic force provided by the elastic body 3 is also directly transmitted to the human body through the support body 1 . Different from the existing technology, in this case, the support body 1 is designed with "split setting and bracket adjustment". Specifically, the support body 1 includes a main support 11 and an auxiliary support 12. The number of auxiliary supports 12 can be set according to different products. In this embodiment, two auxiliary supports 12 are provided, respectively arranged on both sides of the main support 11 .

The main bracket 11 and the auxiliary bracket 12 are rotationally connected. Specifically, as shown in FIG. 3 , the flipping device 4 includes a connecting arm 41 . There may be two connecting arms 41 , which are connected to the main bracket 11 . The connecting arms 41 are provided with through holes 411 . The auxiliary support 12 is provided with a connecting tube 42. The user passes the rotating shaft extending in the vertical direction through the opening 411 and the connecting tube 42. The auxiliary support 12 can rotate relative to the main support 11 using the rotating shaft as an axis. And due to the extension distance of the connecting arm 41, such a rotation method makes the rotation position away from the main bracket 11, and the auxiliary bracket 12 rotates more smoothly and does not interfere with the main bracket 11; and, due to the structure of the connecting arm 41, , and cooperates with the structure of the connecting tube 42, the rotation is more stable, and the turning device 4 is stronger.

On the one hand, the auxiliary bracket 12 is rotationally connected to the main bracket 11, and on the other hand, it is slidingly connected to the back frame 2. As shown in Figure 3, the sliding pin 5 is installed on the back of the auxiliary support 12, and as shown in Figure 2, a slideway is provided on the side extension 22, and the sliding pin 5 slides in the slideway.

One end of the elastic body 3 is connected to the support part 21 , and the other end is connected to the main support 11 .

When the user is in the working mode, that is, the user's body leans forward, the waist and back of the human body are facing forward, and the user often sits in an upright posture with the waist and back straight. At this time, the elasticity of the elastic body 3 drives the main support 11 to move forward and resist the waist and back of the human body. Due to the arc-shaped arrangement of the back frame 2, the auxiliary support 12 is further forward than the main support 11 in the front-to-back direction. At this time, the main support 11 moves forward and is almost flush with the auxiliary supports 12 on both sides in the front-rear direction. Therefore, the main support 11 and the auxiliary support 12 can be almost on the same plane, playing a flat and large role in flattening the human body's back. area of support, the support effect is comfortable.

When the user is in the rest mode, the user's body leans backward with the waist facing backward, and the entire waist is often relaxed and curved. At this time, the elastic body 3 is compressed, the main support 11 moves backward, and the auxiliary supports 12 on both sides are positioned closer to the front and rear. At this time, the main support 11 and the two left and right auxiliary supports 12 do not form a flat plane, but an arc-shaped arrangement. The arc arrangement has a wrapping and fitting effect and a waist-clipping effect on the waist and abdomen of the human body. In this mode, not only the back of the waist but also the sides of the waist are supported and fitted, providing high comfort.

The implementation of the elastic body 3 can have different specific implementations in different embodiments. As shown in Figure 3, in some product embodiments, it can be realized by installing the spring 32 alone. The advantages are controllable cost and simple installation. In some product embodiments, this can be realized by the cylinder 31 (hidden in the cylinder diagram). The advantage of the cylinder is that the elastic force output is uniform and stable, and it is also easy to lock the position at the specified position through the valve. As shown in FIG. 2 , a back part 211 protruding toward the rear is provided in the middle of the support part 21 . Its function has two aspects. On the one hand, the back design facilitates the installation of the larger elastic body 3 . On the other hand, , the outer protrusion of the back part 211 can be thickened to ensure better structural support for the elastic body 3 .

An upper connecting portion 23 is provided directly above the supporting portion 21 and extends upward. The upper connecting portion 23 can be directly connected to components such as the main back of the seat. The user can provide components such as adjustment ribs or holes on the upper connecting portion 23 so that the main back can be connected to different height positions of the upper connecting portion 23, thereby making the installation height of the entire waist-clip waist support flexible and adjustable.

A seat includes the above-mentioned lumbar support, a stool, a main back and a chair leg. The main back is connected to the back frame, and the chair leg is connected to the stool.

Claims (10)

1. A waist-clip lumbar support, including a back frame (2), a support body (1) that conflicts with the human body's lower back, and an elastic body (3) connected to the back frame (2), and is characterized by: The support body (1) includes a main bracket (11) and an auxiliary bracket (12) that is rotationally connected to the main bracket (11). The auxiliary bracket (12) is slidingly connected to the back frame (2), and the elastic The body (3) is connected to the main bracket (11), and the elastic force drives the main bracket (11) to move in the front and rear direction. 2. A waist-clip lumbar support according to claim 1, characterized in that: the auxiliary support (12) and the main support (11) are connected through a turning device (4), and the turning device (4) 4) It includes a connecting arm (41) connected to the main bracket (11) and a connecting barrel (42) connected to the auxiliary bracket (12). The connecting arm (41) is provided with a through opening (411). , the turning device (4) also includes a rotation shaft that passes through the through opening (411) and is connected to the connecting barrel (42). 3. A waist-clip waist support according to claim 1 or 2, characterized in that: there are two auxiliary supports (12), and the main support (11) is located on the two auxiliary supports (12). between. 4. A waist-clip waist support according to claim 3, characterized in that the back frame (2) includes a support part (21) and side extension parts (22) located on both sides of the support part (21). ), the elastic body (3) is connected to the support part (21), the auxiliary support (12) is slidingly connected to the side extension part (22), and the back frame (2) is arc-shaped , the arc center direction is forward. 5. A waist-clip lumbar support according to claim 4, characterized in that: the auxiliary support (12) is equipped with a sliding pin (5), and the side extension portion (22) is provided with the The sliding pin (5) matches the slide way. 6. A waist-clip waist support according to claim 4, characterized in that: the back frame (2) also includes an upper connecting portion (23) extending in the vertical direction, and the upper connecting portion (23) ) is located directly above the support part (21). 7. A waist-clip lumbar support according to claim 4, characterized in that: the support part (21) is provided with a back part (211) protruding and extending rearward at a central position. 8. A waist-clip lumbar support according to claim 1 or 2, characterized in that: the main support (11) is provided with a front abutment portion (111) protruding forward. 9. A waist-clip waist support according to claim 1 or 2, characterized in that the elastic body (3) is a spring (32) or a cylinder (31). 10. A seat, characterized in that it includes the lumbar support as claimed in any one of claims 1 to 9, and also includes a stool, a main back and chair legs, the main back and the back frame ( 2) Connection: the chair legs are connected to the stool.