Electric folding headrest for automobile
By designing an electric folding headrest for automobiles, and utilizing a rotating mechanism and a torsion spring mechanism, the problem of interference between the headrest and the front seat was solved, allowing the backrest to be folded down without having to move forward, thus improving driving comfort.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-08
- Publication Date
- 2026-03-13
AI Technical Summary
Existing car headrests tend to interfere with the front seats when the rear seat backrests are folded down, resulting in limited space for front passengers and affecting their comfort.
An electric folding headrest for automobiles has been designed. The headrest angle can be adjusted through a rotating mechanism and a torsion spring mechanism, allowing the backrest to be fully reclined without moving forward. The headrest is automatically folded using electric control.
It achieves convenient backrest folding and full utilization of front passenger space, thus improving driving comfort.
Smart Images
Figure CN223989973U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of automotive headrest technology, specifically an electric folding headrest for automobiles. Background Technology
[0002] A headrest is a car driving comfort and safety accessory. In the event of a rear-end collision, the human body will fall backward due to inertia. At this time, the pressure of the vehicle's acceleration or deceleration is concentrated on the vulnerable neck and head. The headrest plays a cushioning role in this process, protecting the human head.
[0003] Headrests are typically installed on the back of car seats. In order to carry cargo without affecting the rear passengers and to flexibly adapt to different scenarios, the backrest is usually designed to be foldable. When the backrest is folded down, it can easily accommodate long items (such as bicycles, skis), furniture or large luggage, meeting the needs of moving, shopping and other activities.
[0004] However, when the rear seatbacks need to be folded down, the headrests often interfere with the rear of the front seats due to their structural limitations. To avoid this collision, the front seats usually need to be adjusted forward to allow the backrests to fold down completely. However, forcing the front seats forward may reduce legroom for the driver or passengers, especially for taller occupants, affecting driving comfort. Therefore, an electrically folding headrest for automobiles has been proposed to address these issues. Utility Model Content
[0005] To address the shortcomings of existing technologies, this utility model provides an electric folding headrest for automobiles, which can rotate at a certain angle relative to the backrest, making it easier to flatten the backrest.
[0006] To achieve the above objectives, this utility model provides the following technical solution: an electric folding headrest for automobiles, comprising:
[0007] The mounting bracket has a rotating bracket fixed on it. A rotating shaft is rotatably installed inside the rotating bracket. L-shaped mounting rods are fixed at both ends of the rotating shaft. Car headrests are installed on the two L-shaped mounting rods. The mounting bracket has a rotating mechanism for rotating the car headrests, and the folding angle of the car headrests is controlled by the rotating mechanism.
[0008] A rotating mechanism includes a gear plate fixed to a rotating shaft, a first torsion spring sleeved on the rotating shaft, one end of the first torsion spring being inserted into and fixed to the gear plate, and the other end of the first torsion spring being inserted into and fixed to a rotating bracket. The rotating bracket is also provided with a clamping element that cooperates with the gear plate to restrict the car headrest to a certain position. Figure 2 In the state shown.
[0009] Furthermore, the clamping component includes a drive shaft rotatably mounted on a rotating bracket, a clamping plate fixed on the drive shaft, and a transmission shaft rotatably mounted on the rotating bracket. An abutment plate that cooperates with the toothed plate and the clamping plate is fixed on the transmission shaft. By rotating the drive shaft, the clamping plate drives the abutment plate to rotate, no longer limiting the toothed plate, and the toothed plate can then drive the rotating shaft to rotate.
[0010] Furthermore, one side of the abutment plate forms a protrusion outward, the toothed plate forms a recess inward that mates with the protrusion, the other side of the abutment plate forms a slot inward, and the corresponding side of the card plate forms a card seat outward that abuts with the slot. The protrusion of the abutment plate extends into the recess of the toothed plate, while the card seat of the card plate extends into the slot of the abutment plate and abuts with it, so that the three reach a balanced state.
[0011] Furthermore, one end of the drive shaft extends to the outside of the rotating bracket, and a lock handle is fixed to the outer periphery of the outer end of the drive shaft. The other end of the lock handle is connected to a cable. When the drive source pulls the cable, the lock handle can drive the drive shaft to rotate.
[0012] Furthermore, a second torsion spring is sleeved on the drive shaft. One end of the second torsion spring is inserted into and fixed to the side wall of the rotating bracket, and the other end of the second torsion spring is inserted into and fixed to the clamping plate. The tension of the second torsion spring restricts the clamping plate to a certain position. Figure 2 In the state shown, the card plate and the abutment plate are made to fit more tightly.
[0013] Furthermore, an L-shaped limiting plate is fixed on the mounting bracket, a fixing sleeve is fixed on the L-shaped limiting plate, a protective soft sleeve is fixed inside the fixing sleeve, and the outer end of the cable passes through the protective soft sleeve. The protective soft sleeve protects the cable and prevents the cable from getting tangled inside the backrest, which would affect the drive.
[0014] Furthermore, the car headrest includes a headrest frame, and the L-shaped mounting rod is fixed inside the headrest frame by a spring clip wire. The outer surface of the headrest frame is also covered with headrest foam, which contacts the passenger's head for better comfort. The spring clip wire fixes the L-shaped mounting rod inside the headrest frame, enabling quick connection and disassembly of the headrest and the L-shaped mounting rod.
[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:
[0016] When the backrest of this electric folding headrest needs to be folded down, first pull the cable to make the locking handle drive the drive shaft to rotate clockwise. The locking plate then pushes the abutment plate to rotate counterclockwise. The protrusion on the other side of the abutment plate disengages from the recess of the toothed plate and no longer limits the toothed plate. At this time, under the tension of the first torsion spring, the toothed plate can drive the rotating shaft to rotate, causing the L-shaped mounting rod to drive the headrest to rotate counterclockwise around the rotating shaft, thus facilitating the backrest to fold down completely. During operation, there is no need to move the front seat forward beforehand. The headrest can be folded down completely by electric control, making the operation simpler and more convenient. At the same time, it does not occupy the front space and affect the comfort of the front passengers. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model;
[0018] Figure 2 This is a schematic diagram of the rotating mechanism in this utility model;
[0019] Figure 3 This is a schematic diagram of the structure of the protrusion, recess, slot, and seat in this utility model;
[0020] Figure 4 This is a structural diagram of the L-shaped limiting plate, fixing sleeve, and protective soft sleeve in this utility model;
[0021] Figure 5 This is a schematic diagram showing the positions of the headrest frame and headrest foam in this utility model;
[0022] Figure 6 This is a schematic diagram showing the positions of the headrest frame and the retaining spring wire in this utility model;
[0023] Figure 7 This is a schematic diagram showing the positions of the L-shaped mounting rod and the headrest foam in this utility model.
[0024] In the diagram: 1. Mounting bracket; 2. Rotating bracket; 3. Rotating shaft; 4. L-shaped mounting rod; 5. Car headrest; 51. Headrest frame; 52. Snap spring wire; 53. Headrest foam; 6. Toothed plate; 7. First torsion spring; 8. Drive shaft; 9. Clamping plate; 10. Transmission shaft; 11. Abutment plate; 12. Protrusion; 13. Recess; 14. Slot; 15. Clamping seat; 16. Lock handle; 17. Cable; 18. Second torsion spring; 19. L-shaped limiting plate; 20. Fixing sleeve; 21. Protective soft sleeve. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-7 An electric folding headrest for automobiles in this embodiment includes a mounting bracket 1 fixed inside the backrest, a rotating bracket 2 fixed on the mounting bracket 1, a rotating shaft 3 rotatably mounted inside the rotating bracket 2 via bearings, L-shaped mounting rods 4 fixed at both ends of the rotating shaft 3, an automobile headrest 5 mounted on the two L-shaped mounting rods 4, and a rotating mechanism mounted on the mounting bracket 1 to control the folding angle of the automobile headrest 5.
[0027] like Figure 2-4 As shown, the rotating mechanism includes a gear plate 6 fixed to a rotating shaft 3, a first torsion spring 7 sleeved on the rotating shaft 3, one end of the first torsion spring 7 inserted into and fixed to the gear plate 6, and the other end of the first torsion spring 7 inserted into and fixed to the rotating bracket 2. The rotating bracket 2 is also provided with a clamping element that cooperates with the gear plate 6 to restrict the car headrest 5 to a position such as... Figure 2 In the state shown.
[0028] like Figure 2 In the state shown, the first torsion spring 7 is in a stretched state. When the backrest needs to be reclined, it can drive the locking member to no longer lock onto the toothed plate 6. The tension of the first torsion spring 7 can cause the rotating shaft 3 to rotate, and the L-shaped mounting rod 4 can drive the car headrest 5 to rotate counterclockwise by 70 degrees, thus facilitating the reclining of the backrest.
[0029] In a preferred embodiment, the clamping component includes a drive shaft 8 rotatably mounted on a rotating bracket 2 via a bearing, a clamping plate 9 fixed on the drive shaft 8, and a transmission shaft 10 rotatably mounted on the rotating bracket 2 via a bearing. An abutment plate 11 that cooperates with the toothed plate 6 and the clamping plate 9 is fixed on the transmission shaft 10. By rotating the drive shaft 8, the clamping plate 9 drives the abutment plate 11 to rotate, no longer limiting the toothed plate 6, and the toothed plate 6 can drive the rotating shaft 3 to rotate.
[0030] Regarding how the abutment plate 11 mates with the toothed plate 6 and the retaining plate 9 respectively, specifically, one side of the abutment plate 11 forms an outward protrusion 12, the toothed plate 6 forms an inward recess 13 that mates with the protrusion 12, the other side of the abutment plate 11 forms an inward retaining groove 14, and the corresponding side of the retaining plate 9 forms an outward retaining seat 15 that abuts against the retaining groove 14. Figure 3 In the indicated state, the protrusion 12 of the abutment plate 11 extends into the recess 13 of the toothed plate 6, while the card seat 15 of the card plate 9 extends into the card groove 14 of the abutment plate 11 and abuts against it, so that the three reach a balanced state.
[0031] As for how to drive the drive shaft 8 to rotate, such as Figure 4 As shown, one end of the drive shaft 8 extends to the outside of the rotating bracket 2, and a locking handle 16 is fixed to the outer periphery of the outer end of the drive shaft 8. The other end of the locking handle 16 is connected to a cable 17. The cable 17 can be connected to an external drive source and its output end. By pulling the cable 17 through the drive source, the locking handle 16 can drive the drive shaft 8 to rotate.
[0032] A second torsion spring 18 is fitted onto the drive shaft 8. One end of the second torsion spring 18 is inserted into and fixed to the side wall of the rotating bracket 2, and the other end of the second torsion spring 18 is inserted into and fixed to the clamping plate 9. The tension of the second torsion spring 18 restricts the clamping plate 9 to a certain position. Figure 2 In the state shown, the clamping plate 9 and the abutment plate 11 abut more tightly, thereby making the abutment plate 11 and the toothed plate 6 clamp more tightly, improving the stability in the clamping state.
[0033] Furthermore, an L-shaped limiting plate 19 is fixed on the mounting bracket 1, and a fixing sleeve 20 is fixed on the L-shaped limiting plate 19. A protective soft sleeve 21 is fixed inside the fixing sleeve 20. The outer end of the cable 17 passes through the protective soft sleeve 21. The protective soft sleeve 21 protects the cable 17 and prevents the cable 17 from getting tangled inside the backrest, which would affect the drive.
[0034] In addition, such as Figure 5-7 As shown, the car headrest 5 includes a headrest frame 51, and an L-shaped mounting rod 4 is fixed inside the headrest frame 51 by a snap ring wire 52. The outer surface of the headrest frame 51 is also covered with headrest foam 53, which contacts the passenger's head and provides better comfort.
[0035] Specifically, a pair of mounting sleeves are formed inside the headrest frame 51. The L-shaped mounting rod 4 is inserted into the mounting sleeve, and the outer circumference of the mounting sleeve has an arc-shaped opening for part of the L-shaped mounting rod 4 to protrude. The L-shaped mounting rod 4 is provided with a groove corresponding to the opening, so that the retaining spring wire 52 can be used to fasten the L-shaped mounting rod 4 to the headrest frame 51, realizing quick connection and disassembly of the headrest and the L-shaped mounting rod 4.
[0036] In summary, when the backrest needs to be folded down, the pull cable 17 is pulled to make the locking handle 16 drive the drive shaft 8 to rotate clockwise. The locking plate 9 can then push the abutment plate 11 to rotate counterclockwise. The protrusion 12 on the other side of the abutment plate 11 will disengage from the recess 13 of the toothed plate 6 and no longer limit the toothed plate 6. At this time, under the tension of the first torsion spring 7, the toothed plate 6 can drive the rotating shaft 3 to rotate, so that the L-shaped mounting rod 4 drives the car headrest 5 to rotate counterclockwise around the rotating shaft 3, thereby facilitating the folding down of the backrest.
[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An electric folding headrest for automobiles, characterized in that, The utility model provides a kind of automobile headrest, including: Mounting bracket (1), the rotating support (2) is fixed on the mounting bracket (1), the rotating shaft (3) is rotationally arranged in the rotating support (2), the end of the rotating shaft (3) is fixed with L-shaped mounting rod (4), the end of the L-shaped mounting rod (4) is provided with automobile headrest (5), the rotating mechanism for the rotation of automobile headrest (5) is provided on the mounting bracket (1); The rotating mechanism includes the gear plate (6) fixed to the rotating shaft (3), the first torsion spring (7) is sleeved on the rotating shaft (3), one end of the first torsion spring (7) is inserted into the gear plate (6) and is fixed therewith, the other end of the first torsion spring (7) is inserted into the rotating support (2) and is fixed therewith, the clamping piece matched with the gear plate (6) is further provided on the rotating support (2).
2. The electric folding headrest of claim 1, wherein: The clamping piece includes the drive shaft (8) rotationally arranged on the rotating support (2), the clamping plate (9) is fixed on the drive shaft (8), the transmission shaft (10) is further rotationally arranged on the rotating support (2), the abutting plate (11) matched with the gear plate (6) and the clamping plate (9) is fixed on the transmission shaft (10).
3. The electric folding headrest of claim 2, wherein: One side of the abutting plate (11) forms the protruding portion (12) outward, the recessed portion (13) matched with the protruding portion (12) is formed inward on the gear plate (6), the other side of the abutting plate (11) forms the clamping groove (14) inward, the clamping seat (15) abutting with the clamping groove (14) is formed outward on the corresponding side of the clamping plate (9).
4. The electric folding headrest of claim 2, wherein: One end of the drive shaft (8) extends to the outside of the rotating support (2), and the periphery of the outer end of the drive shaft (8) is fixed with the lock handle (16), the other end of the lock handle (16) is connected with the cable (17).
5. The electric folding headrest of claim 4, wherein: The second torsion spring (18) is sleeved on the drive shaft (8), one end of the second torsion spring (18) is inserted into the side wall of the rotating support (2) and is fixed therewith, the other end of the second torsion spring (18) is inserted into the clamping plate (9) and is fixed therewith.
6. The electric folding headrest of claim 5, wherein: The L-shaped limiting plate (19) is fixed on the mounting bracket (1), the fixed sleeve (20) is fixed on the L-shaped limiting plate (19), the protection sleeve (21) is fixed in the fixed sleeve (20), and the outer end of the cable (17) passes out from the protection sleeve (21).
7. The electric folding headrest of claim 5, wherein: The automobile headrest (5) includes the headrest framework (51), the L-shaped mounting rod (4) is fixed in the headrest framework (51) through the snap spring steel wire (52), and the headrest foam (53) is sleeved on the outer surface of the headrest framework (51).