A mute headrest and a seat comprising the same

Abstract

The one or more embodiments of the specification provide a mute headrest and a seat comprising the mute headrest, and relate to the technical field of vehicle equipment. In order to ensure the bonding strength and control the insertion or pulling force, the mute headrest comprises a headrest body and two vertical leg rods arranged on the headrest body and extending out of the headrest body; the two vertical leg rods are respectively a first vertical leg rod and a second vertical leg rod; the distance between the free end portions of the first vertical leg rod and the second vertical leg rod in the side projection of each is not more than 11 mm and is greater than 5 mm; a seat comprises a seat frame and a mute headrest arranged on the seat frame. After the first vertical leg rod and the second vertical leg rod are installed on the seat, the fastening between the mute headrest and the seat is ensured, so that the mute headrest moves together with the seat in the moving process, and relative movement between the mute headrest and the seat is avoided, and the mute performance is ensured.

Description

Technical Field

[0001] This specification relates to the field of vehicle equipment technology, and more particularly to a silent headrest and a seat including the silent headrest. Background Technology

[0002] Car headrests are used in cars to support the head and relieve pressure on the head and neck. Almost all vehicles have headrests on their seats.

[0003] During the product manufacturing process, it is difficult to control the dimensions of the headrest rod within a very small tolerance range. After installation, the headrest is prone to wobbling on the seat, resulting in an unstable headrest. In addition to wobbling, an unstable headrest can also produce abnormal noises, which is a type of malfunction that vehicles should try their best to avoid.

[0004] In existing technologies, the included angle between the two legs of the headrest is limited to ensure the tightness of the assembly between the car headrest and the seat. However, due to the inconsistent length of the legs, the distance between the ends of the legs is too large, making it difficult to align the assembly. Even if aligned, the force required for assembly is too great, and it also requires too much force when adjusting the height of the headrest. Summary of the Invention

[0005] In view of this, the purpose of one or more embodiments of this specification is to provide a silent headrest and a seat including the silent headrest to solve the problems of joint strength and control of insertion or withdrawal force.

[0006] Based on the above objectives, one or more embodiments of this specification provide a silent headrest comprising a headrest body and two vertical legs disposed on the headrest body and extending beyond the headrest body; the two vertical legs are respectively a first vertical leg and a second vertical leg; one end of each of the first and second vertical legs is inserted into the headrest body, and the other end extends out of the headrest body to form a free end; the front projections of the first and second vertical legs are parallel to each other; the distance between the free ends of the first and second vertical legs in their side projections is no more than 11 mm and greater than 5 mm; after being installed on the seat by the first and second vertical legs, the fastening between the silent headrest and the seat is ensured, so that the silent headrest moves with the seat during the movement of the seat, thereby avoiding relative movement between the silent headrest and the seat, and thus ensuring the silent performance.

[0007] As a further improvement of this application, the silent headrest is also provided with a transverse connecting rod, the two ends of which are respectively connected to the first vertical rod and the second vertical rod located at one end inside the headrest body.

[0008] As a further improvement of this application, the distance between the free ends of the first and second vertical legs on their respective side projections is seven to nine millimeters.

[0009] As a further improvement of this application, the headrest body includes an elastomer and a covering layer wrapped around the elastomer, and the bottom of the headrest body is provided with mounting holes for accommodating the first vertical bar and the second vertical bar.

[0010] A seat includes a seat frame and a silent headrest disposed on the seat frame. The seat frame includes a skeleton, an elastic layer wrapped around the skeleton, and an outer layer covering the elastic layer. The upper part of the seat frame is provided with an insertion hole for receiving the free ends of a first vertical rod and a second vertical rod.

[0011] As a further improvement of this application, the skeleton is provided with two parallel sleeves, which respectively accommodate the inserted first vertical rod and second vertical rod.

[0012] As a further improvement of this application, the sleeve is fixedly connected to the skeleton.

[0013] As a further improvement of this application, the sleeve is provided with protrusions, and the first and second vertical legs are provided with recesses, the protrusions and the recesses cooperating to position the silent headrest in stages.

[0014] As a further improvement of this application, the frame is provided with a transverse sleeve and a fixing ring disposed below the transverse sleeve. The sleeve is perpendicular to the transverse sleeve and the two are fixedly connected. The transverse sleeve has the degree of freedom to rotate around its own axis on the frame. The free end of the first vertical rod or the free end of the second vertical rod is inserted into the sleeve from the upper end of the sleeve and then inserted into the fixing ring.

[0015] As can be seen from the above, the silent headrest with outward-pointing headrest and the seat containing the silent headrest provided in one or more embodiments of this specification, after being installed on the seat by the first vertical leg and the second vertical leg, ensure the tightness between the silent headrest and the seat, so that the silent headrest moves with the seat during the movement of the seat, thereby avoiding relative movement between the silent headrest and the seat, and thus ensuring the silent performance. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in one or more embodiments of this specification or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only one or more embodiments of this specification. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of a silent headrest with an outward-pointing headrest, as described in one embodiment of this specification.

[0018] Figure 2 This is a schematic diagram of an embodiment of the seat with a silent headrest included in this specification;

[0019] Figure 3 This is a schematic diagram illustrating the engagement of the seat sleeve with the first vertical leg in one embodiment of this specification.

[0020] Figure 4 This is a schematic diagram illustrating the combination of a silent headrest and a seat frame according to another embodiment of this specification;

[0021] Figure 5 This is a schematic diagram of the engagement between the seat sleeve and the first vertical leg rod in another embodiment of this specification;

[0022] Figure 6 This is a cross-sectional schematic diagram showing the engagement of the seat sleeve with the first vertical leg bar in another embodiment of this specification.

[0023] Figure 7 This is a schematic diagram of the first vertical rod engaging with the sleeve after it leaves the fixing collar, according to another embodiment of this specification. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this disclosure clearer, the following detailed description is provided in conjunction with specific embodiments.

[0025] It should be noted that, unless otherwise defined, the technical or scientific terms used in one or more embodiments of this specification should have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains. The terms "first," "second," and similar words used in one or more embodiments of this specification do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0026] A silent headrest includes a headrest body 1 and two vertical legs disposed on the headrest body 1 and extending beyond the headrest body 1; the two vertical legs are designated as a first vertical leg 2 and a second vertical leg 3. One end of each of the first vertical leg 2 and the second vertical leg 3 is inserted into the headrest body 1, and the other end extends beyond the headrest body 1 to form a free end. The frontal projections of the first vertical leg 2 and the second vertical leg 3 are parallel to each other. The distance between the free ends of the first vertical leg 2 and the second vertical leg 3 in their side projections is no more than 11 mm and greater than 5 mm. Through the mutual deflection of the first vertical leg 2 and the second vertical leg 3, lateral pressure is generated on the first vertical leg 2 and the second vertical leg 3 after installation on a seat, thereby ensuring the stability of the silent headrest. This ensures that the silent headrest moves with the seat during movement, thus avoiding relative movement between the silent headrest and the seat and guaranteeing silent performance.

[0027] To enhance the overall structural strength of the vertical support and the reliability of its connection with the headrest body 1, the silent headrest is also provided with a transverse connecting rod 4. The two ends of the transverse connecting rod 4 are respectively connected to the first vertical support 2 and the second vertical support 3 located at one end inside the headrest body 1.

[0028] To further limit the force required to insert or remove the silent headrest, the distance between the free ends of the first vertical rod 2 and the second vertical rod 3 on their respective side projections is seven to nine millimeters. By controlling the distance between the ends, the insertion and removal force can be controlled.

[0029] The headrest body 1 includes an elastic body and a covering layer wrapped around the elastic body. For easy installation, the bottom of the headrest body 1 is provided with mounting holes to accommodate the first vertical rod 2 and the second vertical rod 3.

[0030] A seat includes a seat frame 5 and a silent headrest disposed on the seat frame 5. The seat frame 5 includes a skeleton 51, an elastic layer 52 wrapped around the skeleton 51, and an outer covering layer 53 covering the elastic layer 52. The upper part of the seat frame 5 is provided with an insertion hole for accommodating the free ends of a first vertical rod 2 and a second vertical rod 3.

[0031] To properly install the silent headrest, the frame 51 has two parallel sleeves 511, which respectively accommodate the inserted first vertical rod 2 and second vertical rod 3. The sleeves 511 are fixedly connected to the frame 51. For adjustability, the sleeves 511 have protrusions, and the first vertical rod 2 and second vertical rod 3 have recesses. The protrusions and recesses engage in progressively positioning the silent headrest.

[0032] Furthermore, the protrusion is adjustable, and the sleeve 511 is provided with a countersunk hole, in which a spring is provided, and the protrusion is the part of a ball set in the countersunk hole that protrudes out of the countersunk hole.

[0033] To further reduce the overall force required during insertion and removal, the frame 51 is provided with a transverse sleeve 512 and a fixing ring 513 located below the transverse sleeve 512. The sleeve 511 is perpendicular to the transverse sleeve 512 and the two are fixedly connected. The transverse sleeve 512 has the freedom to rotate around its own axis on the frame 51. The free end of the first vertical rod 2 or the free end of the second vertical rod 3 is inserted into the sleeve 511 from the upper end and then into the fixing ring 513. When the free end of the first vertical rod 2 or the free end of the second vertical rod 3 leaves the fixing ring 513, or before the free end of the first vertical rod 2 or the free end of the second vertical rod 3 enters the fixing ring 513, the sleeve 511 rotates together with the transverse sleeve 512 around the axis of the transverse sleeve 512, thereby greatly reducing the force required for insertion or removal.

[0034] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this disclosure (including the claims) is limited to these examples; within the framework of this disclosure, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of one or more embodiments of this specification as described above, which are not provided in detail for the sake of brevity.

[0035] Additionally, to simplify the description and discussion, and to avoid obscuring one or more embodiments of this specification, the provided drawings may or may not show well-known power / ground connections to integrated circuit (IC) chips and other components. Furthermore, the apparatus may be shown in block diagram form to avoid obscuring one or more embodiments of this specification, and this also takes into account the fact that the details of implementation of these block diagram apparatuses are highly dependent on the platform on which one or more embodiments of this specification will be implemented (i.e., these details should be fully understood by those skilled in the art). While specific details (e.g., circuits) have been set forth to describe exemplary embodiments of this disclosure, it will be apparent to those skilled in the art that one or more embodiments of this specification may be implemented without these specific details or with variations thereof. Therefore, these descriptions should be considered illustrative rather than restrictive.

[0036] Although this disclosure has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0037] One or more embodiments of this specification are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of one or more embodiments of this specification should be included within the scope of protection of this disclosure.

Claims

1. A type of seat, characterized in that, The seat includes a seat frame (5) and a silent headrest disposed on the seat frame (5). The silent headrest includes a headrest body (1) and two vertical legs disposed on the headrest body (1) and extending out of the headrest body (1); the two vertical legs are a first vertical leg (2) and a second vertical leg (3). One end of the first vertical rod (2) and the second vertical rod (3) are inserted into the headrest body (1), and the other end extends out of the headrest body (1) to form a free end. The front projections of the first vertical rod (2) and the second vertical rod (3) are parallel to each other. On the side projections of the first vertical rod (2) and the second vertical rod (3), the distance between the ends of the free ends does not exceed 11 mm and is greater than 5 mm. The seat frame (5) includes a frame (51), an elastic layer (52) wrapped around the frame (51), and an outer layer (53) covering the elastic layer (52). The upper part of the seat frame (5) is provided with an insertion hole for accommodating the free ends of the first vertical rod (2) and the second vertical rod (3). The frame (51) is provided with a transverse sleeve (512) and a fixing collar (513) located below the transverse sleeve (512). The sleeve (511) is perpendicular to the transverse sleeve (512) and the two are fixedly connected. The transverse sleeve (512) has the freedom to rotate around its own axis on the frame (51). The free end of the first vertical rod (2) or the free end of the second vertical rod (3) is inserted into the sleeve (511) from the upper end of the sleeve (511) and then inserted into the fixing collar (513).

2. The seat according to claim 1, characterized in that, The silent headrest is also provided with a horizontal connecting rod (4), the two ends of which are respectively connected to the first vertical rod (2) and the second vertical rod (3) located at one end inside the headrest body (1).

3. The seat according to claim 1, characterized in that, On the side projections of the first vertical rod (2) and the second vertical rod (3), the distance between the free ends is seven to nine millimeters.

4. The seat according to claim 1, characterized in that, The headrest body (1) includes an elastic body and a covering layer wrapped around the elastic body. The bottom of the headrest body (1) is provided with mounting holes for accommodating the first vertical bar (2) and the second vertical bar (3).

5. The seat according to claim 1, characterized in that, The frame (51) is provided with two parallel sleeves (511), which respectively accommodate the inserted first vertical rod (2) and the second vertical rod (3).

6. The seat according to claim 5, characterized in that, The sleeve (511) is fixedly connected to the skeleton (51).

7. The seat according to claim 5, characterized in that, The sleeve (511) is provided with protrusions, and the first vertical rod (2) and the second vertical rod (3) are provided with recesses. The protrusions and the recesses cooperate to position the silent headrest.

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