Backrest cover and foam mounting structure suitable for lumbar massage function

Abstract

This invention provides a backrest cover and foam mounting structure suitable for a lumbar massage function. [Solution] The present invention discloses a backrest cover and foam mounting structure suitable for a lumbar massage function, comprising a backrest foam, with a sinking region provided on the front surface of the backrest foam, two sets of strip-shaped grooves extending in the height direction of the backrest provided in the sinking region, both sets of strip-shaped grooves used to accommodate massage arms, an abrasion-resistant cloth provided on the front side of the backrest foam, the abrasion-resistant cloth having a covering layer covering the surface of the backrest foam, an expandable layer provided on the rear side of the covering layer, the expandable layer being arranged to be folded within the sinking region, and when the abrasion-resistant cloth receives outward thrust from the massage arms in the strip-shaped grooves, the expandable layer can be stretched outward so that the abrasion-resistant cloth protrudes outward. A beneficial effect of the present invention is that the massage arms can be better accommodated and their stable operation can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of automobile seats, and specifically relates to the mounting structure of a backrest cover and foam adapted to a lumbar massage function.

Background Art

[0002] In order to improve the riding comfort of automobile seats, some manufacturers install a massage device inside the backrest of the seat. During the user's ride, the massage device massages the user's lumbar region, relieves fatigue caused by long-term sitting, and can improve the riding comfort. In conventional massage technology methods, generally, a massage airbag and a mechanical massager are installed in the lumbar region of the backrest. In the case of massage by an airbag, the soft material airbag acts on the user's waist and back regions, the massage force is low, the massage effect is poor, and it is difficult to relax the user's body comprehensively and deeply. In the case of a mechanical massager, a rotatable massage device is often directly pressed against the user's back for massage. Although the massage force is greater than that of an airbag massage, it also has the disadvantages of being large-sized and having a complex structure.

[0003] In light of the lack of prior art, the applicant plans to develop a massage device that can simulate kneading, tapping, and deep tissue massage techniques. The core of this technology is to mount two massage arms within the backrest that can move up and down along its height, and to provide kneading and tapping massages by controlling the oscillation of the massage arms with a mechanical transmission system after the ends of the massage arms act on the user's lower back. Alternatively, to provide deep tissue massages by controlling the up and down movement of the massage arms with a lifting mechanism after the ends of the massage arms act on the user's lower back. In this research and development concept, when the massage function is not active, the massage arms remain in a non-extended state and are housed within the backrest to avoid causing discomfort to the user during normal sitting. When the massage function is active, the massage arms need to be pressed against the inside of the front cover of the backrest, and the cover needs to be slightly protruding outwards during the operation of the massage arms. Therefore, determining what kind of cover and foam mounting method to adopt in order to better ensure the stable operation and installation of the massage device is a technical challenge that needs to be overcome urgently. [Overview of the project] [Problems that the invention aims to solve]

[0004] In view of this, the present invention provides a backrest cover and foam mounting structure adapted to a lumbar massage function, so as to better accommodate the massage arm and ensure its stable operation. [Means for solving the problem]

[0005] To achieve the above objective, the technical method of the present invention is as follows.

[0006] A backrest cover and foam mounting structure adapted for lumbar massage function, comprising a backrest foam, the front surface of the backrest foam having a recessed area, the recessed area having two sets of strip-shaped grooves extending in the height direction of the backrest, and both sets of strip-shaped grooves being used to accommodate massage arms, A backrest cover and foam mounting structure suitable for a lumbar massage function, characterized in that an abrasion-resistant cloth is provided on the front side of the backrest foam, the abrasion-resistant cloth comprises a covering layer covering the surface of the backrest foam, an expandable layer is provided on the rear side of the covering layer, the expandable layer is arranged to be folded into the sinking region, and when the abrasion-resistant cloth receives outward thrust from the massage arm in the strip-shaped groove, the expandable layer is stretched outward so that the abrasion-resistant cloth protrudes outward.

[0007] According to the above structure, when the massage function is activated, the massage arm penetrates the strip-like grooves and the annular expandable layer, acting on the inside of the covering layer. The inside of the covering layer receives a forward thrust from the massage arm, causing the expandable layer to expand outward. The covering layer responds accordingly, and the position of the massage arm can adaptively protrude outward. Moreover, without any feeling of traction, it is possible to ensure that the massage arm can stably perform massage operations such as kneading, tapping, and kneading.

[0008] Preferably, the expansion layer is an annular structure arranged circumferentially along the settlement region.

[0009] Preferably, the expansion layer has at least two folded layers, the outermost folded layer being connected to the covering layer, and the innermost folded layer being connected to an intermediate portion that is a passage structure and is connected to the groove wall of a strip-shaped groove.

[0010] Preferably, an inner connecting layer covering the inner surface of the backrest foam is provided at one end of the intermediate portion away from the expansion layer.

[0011] Preferably, a wire is fitted into the backrest foam, and the periphery of the covering layer is secured to the wire.

[0012] Preferably, the settlement area is a rectangular groove that is recessed downwards.

[0013] Preferably, the length of the grooved section is shorter than the length of the settlement area.

[0014] Preferably, a mesh cloth and a sealing plate are provided between the inner connecting layer and the inner surface of the backrest foam.

[0015] Preferably, the abrasion-resistant fabric is elastic. [Effects of the Invention]

[0016] Compared to the conventional technology, the beneficial effects of the present invention are as follows:

[0017] According to the backrest cover and foam mounting structure adapted to the lumbar massage function of the present invention, the massage device is positioned behind the wear-resistant fabric inside the backrest. When the massage device is not in operation, the massage arm is housed in the strip-shaped groove and does not press against the inside of the wear-resistant fabric. At this time, the covering layer is kept flat, ensuring not only a high quality appearance but also excellent comfort for the user to lean back on the chair's backrest without discomfort. When the massage function is activated, the massage arm penetrates the strip-shaped groove and the annular expandable layer, acting on the inside of the covering layer. The inside of the covering layer receives a forward thrust from the massage arm, causing the expandable layer to expand outward. The covering layer responds accordingly, and the position of the massage arm can adaptively protrude outward. Moreover, there is no feeling of traction, ensuring that the massage arm can stably perform massage operations such as kneading, tapping, and kneading. [Brief explanation of the drawing]

[0018] [Figure 1] This is a schematic diagram of the structure of the backrest foam 1. [Figure 2] This is a schematic structural diagram of the present invention. [Figure 3] This is a schematic structural diagram of the wear-resistant cloth 2. [Figure 4] This is a cross-sectional view of the wear-resistant cloth 2. [Figure 5] This is a cross-sectional view of the present invention. [Figure 6] This is a partial enlarged view at A in FIG. 5. [Figure 7] This is a reference view of the usage state of the present invention.

Embodiments for Carrying Out the Invention

[0019] Hereinafter, the present invention will be further described with reference to examples and drawings.

[0020] As shown in FIG. 1, the mounting structure of the backrest cover and foam adapted to the lumbar massage function includes a backrest foam 1. A sunken area 1a is provided on the front surface of the backrest foam 1. In this sunken area 1a, two sets of strip-shaped through grooves 1b extending in the height direction of the backrest are provided. Both sets of strip-shaped through grooves 1b are used to accommodate the massage arms. In this embodiment, the length of the strip-shaped through groove 1b is shorter than the length of the sunken area 1a. Further, as shown in FIGS. 2 and 3, a wear-resistant cloth 2 including a coating layer 2a coated on the surface of the backrest foam 1 is provided on the front side of the backrest foam 1. A stretchable layer 2b is provided on the rear side of this coating layer 2a. As can be seen from FIG. 6, the stretchable layer 2b is arranged to be folded within the sunken area 1a.

[0021] When the wear-resistant cloth 2 receives a thrust outward from the massage arm within the strip-shaped through groove 1b, the stretchable layer 2b can be stretched outward so that the wear-resistant cloth 2 can protrude outward.

[0022] As shown in Fig. 7, during application, the massage device is provided at a position behind the wear-resistant cloth 2 inside the backrest. When the massage device is not operating, the massage arm B is accommodated in the strip-shaped through groove 1b and does not protrude inside the wear-resistant cloth 2. At this time, the coating layer 2a can ensure a flat state, and the user can lean on the backrest of the chair normally with excellent comfort and no discomfort. When the massage function becomes effective, the massage arm B penetrates through the strip-shaped through groove 1b and the telescopic layer 2b with an annular structure and acts on the inside of the coating layer 2a. The inside of the coating layer 2a receives the forward thrust action from the massage arm B, expands the telescopic layer 2b outward, and the coating layer 2a corresponds to it. The position of the massage arm B can protrude outward adaptively, and there is no pulling feeling at all, ensuring that the massage arm B can stably perform massage operations such as kneading, tapping, and kneading and relaxing.

[0023] Furthermore, as shown in Figs. 3 and 5, the telescopic layer 2b is an annular structure arranged along the circumferential direction of the sunken area 1a. Designed in this way, when the massage arm B protrudes inside the coating layer 2a, the telescopic layer 2b can be expanded better outward.

[0024] As shown in Fig. 4, the telescopic layer 2b includes at least two folding layers a. The outermost folding layer a is connected to the coating layer 2a. As shown in Fig. 3, two sets of intermediate parts b, which are arranged along the width direction of the coating layer 2a and have a passage structure suitable for the strip-shaped through groove 1b, are connected to the innermost folding layer a. As shown in Fig. 5, each set of intermediate parts b is connected to the groove wall of the corresponding strip-shaped through groove 1b. When the massage arm B is pushed forward, it can act on the inner surface of the coating layer 2a through the intermediate part b.

[0025] As shown in Fig. 3, an inner connecting layer c is provided at one end of the intermediate part b away from the telescopic layer 2b. As can be seen from Fig. 5, the inner connecting layer c is covered on the inner surface of the backrest foam 1. When the massage arm B applies an outward thrust to the coating layer 2a, it can be ensured that the wear-resistant cloth 2 is always fixed to the backrest foam 1.

[0026] Furthermore, as shown in Figure 6, a wire 3 is fitted inside the backrest foam 1, and the periphery of the covering layer 2a is secured to the wire 3. This design ensures the stability of the connection between the circumferential direction of the covering layer 2a and the backrest foam 1.

[0027] As shown in Figures 1 and 6, in order to ensure the flatness of the front surface of the wear-resistant cloth 2 when the massage device is not in operation and to improve the comfort of the user's normal ride, in this embodiment the sinking region 1a is a downwardly recessed rectangular groove, and the thickness of the expansion layer 2b matches the circumferential thickness of the sinking region 1a.

[0028] In this embodiment, the abrasion-resistant cloth 2 is designed to be elastic so that it can return to a flat state when the massage is finished.

[0029] Furthermore, as shown in Figures 5 and 6, a mesh cloth 4 and a sealing plate 5 are provided between the inner connecting layer c and the inner surface of the backrest foam 1. This improves the reliability and adhesion of the connection between the abrasion-resistant cloth 2 and the inside of the backrest foam 1.

[0030] Finally, the above description is merely a preferred embodiment of the present invention, and those skilled in the art can, under the teachings of the present invention, make many similar expressions without departing from the spirit and claims of the invention, and all such modifications fall within the scope of the protection of the present invention. [Explanation of symbols]

[0031] 1. Backrest foam 1a Subsidence area 1b Striped groove 2 Abrasion resistant cloth 2a Covering layer 2b stretch layer B Massage Arm 3 wires 4 Mesh fabric 5. Seal plate a. Folding layer b Middle part c Inner connecting layer

Claims

1. The backrest foam (1) is provided, and a recessed area (1a) is provided on the front surface of the backrest foam (1), and two sets of striped grooves (1b) extending in the height direction of the backrest are provided in the recessed area (1a), and both sets of striped grooves (1b) are used to accommodate the massage arm. A backrest cover and foam mounting structure suitable for a lumbar massage function, characterized in that an abrasion-resistant cloth (2) is provided on the front side of the backrest foam (1), the abrasion-resistant cloth (2) comprises a covering layer (2a) covering the surface of the backrest foam (1), an expandable layer (2b) is provided on the rear side of the covering layer (2a), the expandable layer (2b) is arranged to be folded into the sinking region (1a), and when the abrasion-resistant cloth (2) receives outward thrust from the massage arm in the strip-shaped groove (1b), the expandable layer (2b) is able to be extended outward so that the abrasion-resistant cloth (2) protrudes outward.

2. The mounting structure for a backrest cover and foam body adapted to a lumbar massage function according to claim 1, characterized in that the expandable layer (2b) is an annular structure arranged along the circumferential direction of the sinking region (1a).

3. The expandable layer (2b) comprises at least two foldable layers (a), the outermost foldable layer (a) being connected to the covering layer (2a), and the innermost foldable layer (a) being connected to an intermediate portion (b) which is a passage structure and is connected to the groove wall of a strip-shaped passage groove (1b), characterized in that the backrest cover and foam mounting structure adapted to a lumbar massage function according to claim 1.

4. The mounting structure for a backrest cover and foam body adapted to a lumbar massage function according to claim 3, characterized in that an inner connecting layer (c) covering the inner surface of the backrest foam body (1) is provided at one end of the intermediate portion (b) away from the expandable layer (2b).

5. The mounting structure for a backrest cover and foam suitable for a lumbar massage function according to claim 1, characterized in that a wire (3) is fitted inside the backrest foam (1) and the periphery of the covering layer (2a) is secured to the wire (3).

6. The mounting structure for a backrest cover and foam body adapted to a lumbar massage function according to claim 1, characterized in that the recessed area (1a) is a rectangular groove that is recessed downwards.

7. The mounting structure for a backrest cover and foam body suitable for a lumbar massage function according to claim 1, characterized in that the length of the strip-shaped groove (1b) is shorter than the length of the sinking region (1a).

8. The mounting structure for a backrest cover and foam suitable for a lumbar massage function according to claim 4, characterized in that a mesh cloth (4) and a sealing plate (5) are provided between the inner connecting layer (c) and the inner surface of the backrest foam (1).

9. The abrasion-resistant cloth (2) is elastic, characterized in that the backrest cover and foam mounting structure suitable for the lumbar massage function described in claim 1.

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