A four-way headrest framework structure driven by compressed gas

Abstract

A four-way headrest frame structure driven by compressed gas is disclosed. The headrest frame structure uses compressed gas as the driving force for the headrest's movement in the fore-and-aft direction of the vehicle body. It includes a headrest frame body, with a front compressed gas drive component and a rear compressed gas drive component on its front and rear sides, respectively. These components actuate upon input of compressed gas. A forward push plate and a rear push plate are respectively located on the outer sides. A left push plate slide rod and a right push plate slide rod pass sequentially through the left and right sides of the forward push plate, the headrest frame body, and the rear push plate, respectively, and are fixed at their ends by locking components. The forward push plate is fixedly connected to the left and right push plate slide rods by fasteners. The front and rear compressed gas drive components cooperate to cause the forward and rear push plates to move forward or backward relative to the headrest frame body as a whole. This structure fundamentally eliminates the discomfort caused by motor noise and vibration when adjusting the headrest in the fore-and-aft direction, improving the driving experience and perceived quality.

Description

Technical Field

[0001] This invention belongs to the field of automotive seat technology, and relates to headrest frames, specifically a four-way headrest frame structure driven by compressed gas. Background Technology

[0002] Current standard four-way headrests are electrically driven, requiring a drive motor to move the headrest in the forward and backward direction (i.e., the X-direction of the vehicle body) to provide fore-and-aft position adjustment. However, since the operation of the motor inevitably generates noise and vibration, and its placement is very close to the listener's ears, the noise and vibration from the motor can easily cause discomfort when adjusting the headrest's X-direction position, which is detrimental to improving the driving experience and sense of luxury.

[0003] Currently, most commercially available four-way headrest frames use an electric drive system. However, the noise generated by the motor during the fore-and-aft adjustment of the headrest can cause discomfort to passengers and affect their comfort. Therefore, it is necessary to improve the existing headrest frame structure. Summary of the Invention

[0004] In view of the above-mentioned technical problems and shortcomings, the purpose of this invention is to provide a four-way headrest frame structure driven by compressed gas. This structure improves the existing headrest frame structure by using compressed gas to drive it, eliminating the motor, worm gear and other drive mechanisms used to adjust the X-axis movement from the root, eliminating the discomfort caused by motor noise and vibration when adjusting the headrest in the front and rear directions, and improving the driving experience and sense of quality.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A four-way headrest frame structure driven by compressed gas is disclosed. The headrest frame structure uses compressed gas as the driving force for the headrest to move in the front-rear direction of the vehicle body. It includes a headrest frame body, and front and rear compressed gas driving components are respectively provided on the front and rear sides of the headrest frame body. The front and rear compressed gas driving components are activated after compressed gas is input. A forward push plate and a rear push plate are respectively provided on the outer side of the front and rear compressed gas driving components. A left push plate slide rod and a right push plate slide rod pass through the left and right sides of the forward push plate, the headrest frame body, and the rear push plate in sequence, and are fixed at their ends by locking components. The forward push plate is fixedly connected to the left and right push plate slide rods by fasteners. The front and rear compressed gas driving components cooperate to make the forward and rear push plates move forward or backward relative to the headrest frame body as a whole.

[0007] As a preferred embodiment of the present invention, the headrest frame body is provided with a control module, which controls the front-to-back adjustment position of the headrest.

[0008] As a preferred embodiment of the present invention, the front compressed gas drive component and the rear compressed gas drive component are cylinders or air bags; the locking component is a retaining ring or a bolt; and the ends of the left push plate slide rod and the right push plate slide rod are provided with retaining ring grooves that cooperate with the retaining ring to achieve fixation.

[0009] As a preferred embodiment of the present invention, a Z-axis lifting mechanism is provided below the headrest frame body. The fixed end of the Z-axis lifting mechanism is fixed to the backrest frame. The headrest rod of the headrest frame body passes through the headrest guide sleeve fixed to the backrest frame, and the lower end is connected to the movable end of the Z-axis lifting mechanism. The Z-axis lifting mechanism controls the position of the headrest frame body in the Z-axis.

[0010] As a further preferred embodiment of the present invention, the base of the cylinder is fixed on the headrest frame body, and the drive end is fixedly connected to the forward push plate or the rear push plate. When the cylinder on the front side extends and the cylinder on the rear side retracts, the forward push plate and the rear push plate move forward relative to the headrest frame body as a whole. When the cylinder on the front side retracts and the cylinder on the rear side extends, the forward push plate and the rear push plate move backward relative to the headrest frame body as a whole.

[0011] As a further preferred embodiment of the present invention, the airbag is fixed on the headrest frame body, and the airbag is connected to the air pump through the air guide tube. The air guide tube is provided with an air valve and an air pressure detection module. The air valve and the air pressure detection module are electrically connected to the control module (ECU controller). The control module controls the air pump according to the data monitored by the air pressure detection module, and at the same time controls the air valve to open or close.

[0012] As a further preferred embodiment of the present invention, the Z-axis lifting mechanism is driven by a lead screw motor, and the movable end of the Z-axis lifting mechanism is provided with two insertion parts that cooperate with the headrest rod to achieve insertion. The outer ring of the insertion part is provided with a locking spring that cooperates with the headrest rod to achieve locking.

[0013] As a further preferred embodiment of the present invention, the airbag located on the front side of the headrest frame body is fixed to the headrest frame body by double-sided tape, and its outer side is connected to the forward push plate; the airbag located on the rear side of the headrest frame body is fixed to the airbag tray by double-sided tape, and its outer side is connected to the rear push plate, and the airbag tray is fixed to the headrest frame body by bolts.

[0014] As a further preferred embodiment of the present invention, the air pump and air valve are mounted on the backrest frame, and the air guide tube extends from the top after passing through the inner hole of the headrest rod and is connected to the airbag.

[0015] As a further preferred embodiment of the present invention, the upper end of the headrest rod is provided with an air tube gasket.

[0016] Advantages and beneficial effects of the present invention:

[0017] (1) The headrest frame structure provided by the present invention improves the headrest frame structure by using compressed gas drive, eliminating the motor, worm gear and other drive mechanisms used to adjust the X-direction movement from the source, eliminating the discomfort caused by motor noise and vibration when adjusting the headrest in the front and rear directions, and greatly improving the driving experience and sense of class.

[0018] (2) The headrest frame structure provided by the present invention has a reasonable, compact and modular design, which makes disassembly and maintenance convenient and is suitable for the current trend of new energy vehicles requiring more comfort, convenience and safety.

[0019] (3) The headrest frame structure provided by the present invention preferentially uses airbags as the driving force for the front and back movement of the headrest. The cylinders that output compressed gas are set in the backrest frame. By changing to pneumatic and arranging the cylinders in the backrest, the motor noise can be greatly reduced and vibration can be eliminated. This design can further improve comfort and the driver and passengers will not feel any discomfort. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 An exploded view of the four-way headrest frame structure provided by the present invention;

[0022] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the main body of the headrest frame;

[0023] Figure 3 This is a schematic diagram of the four-way headrest frame structure provided by the present invention assembled on the seat frame.

[0024] Reference numerals: 1. Headrest frame body; 2. Forward push plate; 3. Rearward push plate; 4. Left push plate slide rod; 5. Right push plate slide rod; 6. Airbag; 7. Air duct; 8. Headrest rod; 9. Headrest guide sleeve; 10. Snap ring; 11. Bolt; 12. Z-axis lifting mechanism; 13. Backrest frame; 14. Double-sided tape; 15. Airbag tray; 16. Air duct gasket; 121. Insertion part; 122. Locking spring. Detailed Implementation

[0025] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0027] like Figures 1 to 3 As shown, this embodiment provides a four-way headrest frame structure driven by compressed gas. The headrest frame structure uses compressed gas as the driving force for the headrest to move in the front-rear direction of the vehicle body. It includes a headrest frame body 1. The front and rear sides of the headrest frame body 1 are respectively provided with a front compressed gas driving component and a rear compressed gas driving component. The front and rear compressed gas driving components are activated after being fed compressed gas. The outer sides of the front and rear compressed gas driving components are respectively provided with a forward push plate 2 and a rear push plate 3. The left push plate slide rod 4 and the right push plate slide rod 5 pass through the left and right sides of the front push plate 2, the headrest frame body 1, and the rear push plate 3 in sequence, and are fixed at the ends by locking components. The front push plate 2 is fixedly connected to the left push plate slide rod 4 and the right push plate slide rod 5 by fasteners. The front and rear compressed gas driving components cooperate to make the front push plate 2 and the rear push plate 3 move forward or backward relative to the headrest frame body as a whole.

[0028] Specifically, in this embodiment, the locking element is a retaining spring 10, the locking element is a bolt 11, and the ends of the left push plate slide rod 4 and the right push plate slide rod 5 are provided with retaining spring grooves (not shown) that cooperate with the retaining spring to achieve fixation.

[0029] In this embodiment, the headrest frame body 1 is provided with a control module (also called ECU module or ECU controller, not shown). The control module is used to control the operation of the front compressed gas drive component and the rear compressed gas drive component, and the front-to-back adjustment position of the headrest is controlled by the control module. The front compressed gas drive component and the rear compressed gas drive component are cylinders or air bags, preferably air bags.

[0030] Specifically, when the front compressed gas drive and the rear compressed gas drive are cylinders, the base of the cylinder is fixed on the headrest frame body 1, and the drive end is fixedly connected to the forward push plate 2 or the rear push plate 3. When the cylinder on the front side extends and the cylinder on the rear side retracts, the forward push plate 2 and the rear push plate 3 move forward relative to the headrest frame body 1. When the cylinder on the front side retracts and the cylinder on the rear side extends, the forward push plate 2 and the rear push plate 3 move backward relative to the headrest frame body 1.

[0031] When the front and rear compressed gas drive components are airbags, the airbag 6 is fixed to the headrest frame body 1. The airbag 6 is connected to the air pump through the air guide pipe 7. The air guide pipe 7 is equipped with an air valve (not shown) and an air pressure detection module (not shown). The air valve and air pressure detection module are electrically connected to the control module. The control module controls the air pump according to the data monitored by the air pressure detection module, and simultaneously controls the air valve to open or close. When it is necessary to move the forward push plate 2 and the rear push plate 3 backward relative to the headrest frame body 1 as a whole, the air pump is controlled to open or close. The air pump inflates the airbag located at the rear of the headrest frame 1. At the same time, the airbag located at the front of the headrest frame 1 is compressed and deflated as the forward push plate 2 moves backward, compensating for the displacement. When it is necessary to move the forward push plate 2 and the rear push plate 3 forward relative to the headrest frame 1 as a whole, the air pump is controlled to inflate the airbag located at the front of the headrest frame 1. At the same time, the airbag located at the rear of the headrest frame 1 is compressed and deflated as the rear push plate 2 moves forward, compensating for the displacement, thereby adjusting the position of the headrest in the front-back direction.

[0032] Furthermore, in this embodiment, the airbag 6 located on the front side of the headrest frame body is fixed to the headrest frame body 1 by double-sided tape 14, and its outer side is connected to the forward push plate 2; the airbag 6 located on the rear side of the headrest frame body 1 is fixed to the airbag tray 15 by double-sided tape 14 (considering that the rear side of the headrest frame body is uneven, a plate-type airbag tray is installed to achieve the installation and fixation of the airbag), and its outer side is connected to the rear push plate 3. The airbag tray 15 is fixed to the headrest frame body 1 by bolts.

[0033] Furthermore, in this embodiment, the air pump is installed on the backrest frame, the air guide tube 7 passes through the inner hole of the headrest rod 8 and extends from the top end to connect with the airbag 6, and the upper end of the headrest rod 8 is provided with an air tube gasket 16 to prevent the air guide tube 7 from being damaged at the part that contacts the headrest rod 8.

[0034] In this embodiment, a Z-axis lifting mechanism 12 is provided below the headrest frame body 1. The fixed end of the Z-axis lifting mechanism 12 is fixed to the backrest frame 13. The headrest rod 8 of the headrest frame body 1 passes through the headrest guide sleeve 9 fixed to the backrest frame, and its lower end is connected to the movable end of the Z-axis lifting mechanism 12. The Z-axis lifting mechanism 12 controls the position of the headrest frame body 1 in the Z-axis.

[0035] Specifically, in this embodiment, the Z-axis lifting mechanism 12 is driven by a lead screw motor. The movable end of the Z-axis lifting mechanism 12 is provided with two insertion parts 121 that cooperate with the headrest rod 8 to achieve insertion. The outer ring of the insertion part is provided with a locking spring 122 that cooperates with the headrest rod 8 to achieve locking.

[0036] The above describes specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A four-way headrest frame structure driven by compressed gas, characterized by, The headrest frame structure uses compressed gas as the driving force for the headrest to move in the front-to-back direction of the vehicle body. It includes a headrest frame body, with a front compressed gas drive component and a rear compressed gas drive component respectively located on the front and rear sides of the headrest frame body. The front and rear compressed gas drive components are activated after being fed compressed gas. A forward push plate and a rear push plate are respectively located on the outer side of the front and rear compressed gas drive components. A left push plate slide rod and a right push plate slide rod pass through the left and right sides of the forward push plate, the headrest frame body, and the rear push plate in sequence, and are fixed at their ends by locking components. The forward push plate is fixedly connected to the left and right push plate slide rods by fasteners. The front and rear compressed gas drive components cooperate to make the forward and rear push plates move forward or backward relative to the headrest frame body as a whole.

2. A four-way headrest framework structure driven by compressed gas according to claim 1, wherein The headrest frame is equipped with a control module, which controls the front-to-back adjustment of the headrest.

3. A four-way headrest framework structure driven by compressed gas according to claim 1, wherein The front compressed gas drive component and the rear compressed gas drive component are cylinders or air bags; the locking component is a retaining ring or a bolt; the ends of the left push plate slide rod and the right push plate slide rod are provided with retaining ring grooves that cooperate with the retaining ring to achieve fixation.

4. The four-way headrest framework structure driven by compressed gas according to claim 1, wherein The headrest frame body is provided with a Z-axis lifting mechanism at its lower part. The fixed end of the Z-axis lifting mechanism is fixed to the backrest frame. The headrest rod of the headrest frame body passes through the headrest guide sleeve fixed to the backrest frame, and its lower end is connected to the movable end of the Z-axis lifting mechanism. The Z-axis lifting mechanism controls the position of the headrest frame body in the Z-axis.

5. A four-way headrest framework structure driven by compressed gas according to claim 3, wherein The base of the cylinder is fixed to the headrest frame body, and the drive end is fixedly connected to the forward push plate or the rear push plate. When the cylinder on the front side extends and the cylinder on the rear side retracts, the forward push plate and the rear push plate move forward relative to the headrest frame body. When the cylinder on the front side retracts and the cylinder on the rear side extends, the forward push plate and the rear push plate move backward relative to the headrest frame body.

6. A four-way headrest framework structure driven by compressed gas according to claim 3, wherein The airbag is fixed to the headrest frame body and is connected to the air pump through an air guide tube. The air guide tube is equipped with an air valve and an air pressure detection module. The air valve and air pressure detection module are electrically connected to the control module. The control module controls the air pump according to the data monitored by the air pressure detection module, and at the same time controls the air valve to open or close.

7. A four-way headrest framework structure driven by compressed gas according to claim 4, wherein The Z-axis lifting mechanism is driven by a lead screw motor. The movable end of the Z-axis lifting mechanism is provided with two insertion parts that cooperate with the headrest rod to achieve insertion. The outer ring of the insertion part is provided with a locking spring that cooperates with the headrest rod to achieve locking.

8. A four-way headrest framework structure driven by compressed gas according to claim 6, wherein The airbag located on the front side of the headrest frame body is fixed to the headrest frame body with double-sided tape, and its outer side is connected to the forward push plate; the airbag located on the rear side of the headrest frame body is fixed to the airbag tray with double-sided tape, and its outer side is connected to the rear push plate. The airbag tray is fixed to the headrest frame body with bolts.

9. The four-way headrest framework structure driven by compressed gas according to claim 6, wherein The air pump is mounted on the backrest frame, and the air duct extends from the top after passing through the inner hole of the headrest rod, connecting to the airbag.

10. The four-way headrest framework structure driven by compressed gas according to claim 6, wherein The upper end of the headrest rod is equipped with an air tube gasket.

Images