Angle-adjustable central armrest
By introducing a rotating shaft and angle adjustment mechanism into the center armrest of the car seat, the problem of the center armrest not being able to adjust its angle when the backrest is flipped is solved, thus improving comfort and optimizing space.
Patent Information
- Application Number
- CN202423197126.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing car seat center armrests cannot maintain a comfortable position when the backrest is flipped up, and lack angle adjustment function.
An adjustable angle central handrail was designed, which realizes flexible adjustment of the handrail angle through a rotating shaft and an angle adjustment mechanism. The handrail includes components such as guide plates, ratchet and pawl, and multi-position adjustment is realized by using the ratchet's stop teeth and limit pawl.
When the backrest is flipped, the central armrest can be adjusted to the required angle to improve passenger comfort. It has a simple structure, requires little space, and is highly versatile.
Smart Images
Figure CN223672331U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile seat armrests, in particular to an angle-adjustable central armrest. BACKGROUND
[0002] With the development of the automobile industry, people's demand for the comfort of operating and using automobiles is higher and higher, and the central armrest of an automobile, which is an interior structure for supporting the arms of passengers on the seat, is an important component for improving the comfort of passengers. A seat armrest designed reasonably can improve the comfort and safety of the seat and the vehicle.
[0003] At present, passengers can adjust the seat back according to the comfort of riding, and the armrest beside the seat can only be in two states of opening or closing. Since the rear central armrest of the existing automobile seat product is a non-gear adjustment armrest, the armrest with non-gear adjustment angle cannot maintain the comfortable position when the seat back is turned over. Therefore, it is necessary to design a central armrest that can adaptively adjust the angle when the seat back is turned over. SUMMARY
[0004] To solve the above technical problems, the utility model provides an angle-adjustable central armrest with gear adjustment.
[0005] The technical scheme is as follows: an angle-adjustable central armrest, comprising an armrest framework, the armrest framework being rotatably installed between a left support and a right support through a rotating shaft, and the key points are that the left end of the rotating shaft passes through the left support, an angle adjustment mechanism is installed at the left end of the rotating shaft, and the angle adjustment mechanism is installed on the outside of the left support. The angle adjustment mechanism is provided to adjust the angle of the central armrest according to the turning of the seat back, thereby improving the comfort of passengers.
[0006] As a preferred, the angle adjustment mechanism comprises a guide piece, a ratchet wheel and a pawl, the guide piece is sleeved on the rotating shaft, an arc-shaped guide groove is formed in the guide piece, the ratchet wheel is fixedly sleeved on the rotating shaft and located on the outside of the guide piece, a plurality of gear teeth are distributed on the side wall of the ratchet wheel, a driving rod is arranged on the end face of the ratchet wheel close to the guide piece, and the outer end of the driving rod extends into the arc-shaped guide groove;
[0007] The pawl is installed on the left support through an intermediate shaft, the pawl is located on one side of the ratchet wheel, a torsional spring is sleeved on the intermediate shaft between the left support and the pawl, one end of the torsional spring is installed on the left support, the other end of the torsional spring abuts against the side wall of the pawl away from the ratchet wheel, a limiting pawl is arranged on the side wall of the pawl close to the ratchet wheel, and the limiting pawl can engage with the gear teeth to realize gear adjustment;
[0008] The end face of the pawl near the left support is provided with an unlocking rod, and the guide piece side wall is provided with an unlocking protrusion, and the unlocking rod leans against the unlocking protrusion side wall.
[0009] As preferred, the ratchet wheel side wall is provided with a limiting protrusion, when the ratchet wheel rotates forward and the limiting protrusion touches the pawl side wall, the driving rod drives the guide piece to rotate, the unlocking protrusion pushes the unlocking rod to lift the pawl, the unlocking rod leans against the unlocking protrusion lower side wall, and the central handrail is opened, at this time, the gear teeth engage with the limiting pawl at the lowest position on the ratchet wheel side wall.
[0010] When the ratchet wheel rotates reversely, the pawl is lifted to make the gear teeth engage with the multiple gear teeth on the ratchet wheel side wall respectively, when the driving rod touches the arc-shaped guide groove side wall to drive the guide piece to rotate, the unlocking protrusion pushes the unlocking rod to lift the pawl, the unlocking rod leans against the unlocking protrusion upper side wall, and the central handrail is closed.
[0011] As preferred, the gear angle of the adjacent gear teeth on the ratchet wheel is 8°.
[0012] As preferred, the right support is provided with a limiting piece, the rotating shaft right end is rotatably installed on the limiting piece, the limiting piece is provided with an arc-shaped limiting groove, the handrail framework is fixed with a limiting shaft near the right support, the limiting shaft extends into the arc-shaped limiting groove, and the arc-shaped limiting groove can limit the opening and closing adjustment of the handrail framework.
[0013] As preferred, a connecting piece is installed outside the ratchet wheel and the pawl, and the connecting piece is fixed on the rotating shaft and the intermediate shaft.
[0014] As preferred, a damping washer is installed on the intermediate shaft outside the rotating shaft, and a stepped bolt is installed outside the damping washer.
[0015] Compared with the prior art, the beneficial effects of the utility model are as follows: 1. the central handrail can be adjusted in angle with the change of the backrest angle, and is more suitable for the requirement of comfort; 2. the structure is simple, and the space requirement is small; and 3. the mechanism is universal. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structure schematic view of the utility model closing position;
[0017] Figure 2 It is Figure 1 It is a structure schematic view of the central angle adjusting mechanism;
[0018] Figure 3 It is Figure 2 It is an explosion view of
[0019] Figure 4 Structure diagram of the utility model opening to the lowest position;
[0020] Figure 5 Structure diagram of the engagement of the ratchet wheel 2 and the pawl 4 when the utility model is in the first gear;
[0021] Figure 6 Structure diagram of the engagement of the ratchet wheel 2 and the pawl 4 when the utility model is in the second gear;
[0022] Figure 7 Structure diagram of the engagement of the ratchet wheel 2 and the pawl 4 when the utility model is in the third gear. DETAILED DESCRIPTION
[0023] The utility model will be further explained in combination with the embodiments and the drawings.
[0024] As Figures 1 to 7 shown, an angle-adjustable central handrail is composed of a handrail framework 8, a left support 9 and a right support 10, wherein the structure of the handrail framework 8 is the prior art and will not be described here, the rear part of the handrail framework 8 is rotatably installed between the left support 9 and the right support 10 through a rotating shaft 1, the left end of the rotating shaft 1 passes through the left support 9, and an angle-adjusting mechanism is installed at the left end of the rotating shaft 1, the angle-adjusting mechanism being installed outside the left support 9.
[0025] In combination Figure 1 , Figure 2 and Figure 3It can be seen that the angle adjusting mechanism comprises a guide piece 3, a ratchet wheel 2 and a pawl 4, the guide piece 3 is sleeved on the rotating shaft 1, an arc-shaped guide groove 3a is formed in the guide piece 3, the ratchet wheel 2 is fixedly sleeved on the rotating shaft 1 and located outside the guide piece 3, a plurality of stop ratchet teeth 2a are distributed on the side wall of the ratchet wheel 2, a driving rod 2b is arranged on the end face of the ratchet wheel 2 close to the guide piece 3, and the outer end of the driving rod 2b extends into the arc-shaped guide groove 3a; the pawl 4 is installed on the left support 9 through an intermediate shaft 11, the pawl 4 is located on one side of the ratchet wheel 2, a torsion spring 5 is sleeved on the intermediate shaft 11 between the left support 9 and the pawl 4, one end of the torsion spring 5 is installed on the left support 9, that is, an installation hole is formed in the left support 9, one end of the torsion spring 5 penetrates through the installation hole, and the other end of the torsion spring 5 abuts against the side wall of the pawl 4 away from the ratchet wheel 2, specifically, an installation groove is formed in the side wall of the ratchet wheel 2 away from the pawl 4, the end of the torsion spring 5 is clamped in the installation groove, so that the reliable installation is realized and the slip is avoided, a limiting pawl 4a is arranged on the side wall of the pawl 4 close to the ratchet wheel 2, the limiting pawl 4a can be engaged with the stop ratchet teeth 2a at different positions, and a plurality of stop position adjustments are realized; an unlocking rod 4b is arranged on the end face of the pawl 4 close to the left support 9, and an unlocking protrusion 3b is arranged on the side wall of the guide piece 3, and the unlocking rod 4b abuts against the side wall of the unlocking protrusion 3b.
[0026] In combination Figures 2 to 7 It can be seen that the side wall of the ratchet wheel 2 is provided with a limiting protrusion 2c, when the limiting protrusion 2c touches the side wall of the pawl 4 during the forward rotation of the ratchet wheel 2, the driving rod 2b drives the guide piece 3 to rotate, the unlocking protrusion 3b pushes the unlocking rod 4b to lift the pawl 4, the unlocking rod 4b abuts against the lower side wall of the unlocking protrusion 3b, the central handrail is opened, at this time, the stop ratchet teeth 2a are engaged with the limiting pawl 4a at the lowest position on the side wall of the ratchet wheel 2; during the reverse rotation of the ratchet wheel 2, the pawl 4 is lifted, so that the stop ratchet teeth 2a are respectively engaged with a plurality of stop ratchet teeth 2a on the side wall of the ratchet wheel 2, when the driving rod 2b touches the side wall of the arc-shaped guide groove 3a to drive the guide piece 3 to rotate, the unlocking protrusion 3b pushes the unlocking rod 4b to lift the pawl 4, and the unlocking rod 4b abuts against the upper side wall of the unlocking protrusion 3b, so that the central handrail is closed.
[0027] In order to more accurately adjust the position of the central handrail, the gear angle of the adjacent stop ratchet teeth 2a on the ratchet wheel 2 is 8°.
[0028] Figures 1 to 3The connecting plate 14 is fixed on the rotating shaft 1 and the intermediate shaft 11 outside the ratchet wheel 2 and the pawl 4; the damping washer 7 is arranged on the intermediate shaft 11 outside the rotating shaft 1, and the stepped bolt 6 is arranged outside the damping washer 7.
[0029] Please refer to Figure 1 and Figure 4 The limiting plate 12 is arranged on the right support 10, the rotating shaft 1 is rotatably arranged on the limiting plate 12, the arc-shaped limiting groove 12a is formed in the limiting plate 12, the limiting shaft 13 is fixed on the right support 10 close to the handrail framework 8, the limiting shaft 13 extends into the arc-shaped limiting groove 12a, and the two ends of the arc-shaped limiting groove 12a can limit the opening and closing adjustment of the handrail framework 8.
[0030] The working process of the utility model is as follows:
[0031] 1, opening: when the central handrail is opened and rotated, the ratchet wheel 2 is connected with the rotating shaft 1 through the spline, and rotates under the action of the rotating shaft 1; the ratchet wheel 2 rotates 93° and drives the guide plate 3 to rotate; the pawl 4 starts to slide along the contour curve of the guide plate 3; finally, the pawl 4 is locked on the ratchet wheel 2 at the lowest position of the central handrail under the action of the torsional spring 5.
[0032] 2, adjusting: the rotating shaft 1 drives the ratchet wheel 2 to rotate, the pawl 4 slides along the contour of the ratchet wheel 2, and the 8°-notch adjustment locking is realized under the action of the torsional spring 5; the embodiment can be adjusted by 3 notches, and the angle and the number of notches can be designed according to the requirement; at this time, the guide plate 3 is rotated by the pawl 4, and the damping force is generated by the stepped bolt 6 pressing the damping washer 7 during the rotating process. 3, closing: the guide plate 3 is rotated by the ratchet wheel 2 after the rotating shaft 1 drives the ratchet wheel 2 to rotate 95°, the pawl 4 starts to slide along the contour curve of the guide plate 3, and returns to the closed position after 25°; at this time, one cycle is finished; the damping force is generated by the stepped bolt 6 pressing the damping washer 7 during the rotating process.
[0033] Finally, it should be noted that the above description is only for the preferred embodiment of the utility model, and the ordinary skilled in the art can make various similar expressions under the inspiration of the utility model without violating the purpose and the claims of the utility model, and such changes fall within the protection scope of the utility model.
Claims
1. An angle-adjustable central handrail, comprising a handrail framework (8) which is rotatably mounted between a left support (9) and a right support (10) by a rotation shaft (1) at the rear part, characterized in that: The left end of the rotating shaft (1) penetrates through the left support (9), and an angle adjusting mechanism is installed at the left end of the rotating shaft (1), and the angle adjusting mechanism is installed outside the left support (9); The angle adjusting mechanism comprises a ratchet wheel (2) and a pawl (4), the ratchet wheel (2) is fixedly sleeved on the rotating shaft (1), a plurality of gear teeth (2a) are distributed on the side wall of the ratchet wheel (2), the pawl (4) is installed on the left support (9) through an intermediate shaft (11), the pawl (4) is located on one side of the ratchet wheel (2), a torsion spring (5) is sleeved on the intermediate shaft (11) between the left support (9) and the pawl (4), one end of the torsion spring (5) is installed on the left support (9), and the other end of the torsion spring (5) is located on the side wall of the pawl (4) away from the ratchet wheel (2), a limiting pawl (4a) is arranged on the side wall of the pawl (4) close to the ratchet wheel (2), the limiting pawl (4a) can be engaged with the gear teeth (2a), and gear position adjustment is realized.
2. The angularly adjustable center console of claim 1, wherein: The angle adjusting mechanism comprises a guide piece (3), the ratchet wheel (2) is located outside the guide piece (3), the guide piece (3) is sleeved on the rotating shaft (1), an arc-shaped guide groove (3a) is formed in the guide piece (3), and a driving rod (2b) is arranged on the end face of the ratchet wheel (2) close to the guide piece (3). An unlocking rod (4b) is arranged on the end face of the pawl (4) close to the left support (9), and an unlocking protrusion (3b) is arranged on the side wall of the guide piece (3), and the unlocking rod (4b) is located on the side wall of the unlocking protrusion (3b).
3. The angularly adjustable center console of claim 2, wherein: A limiting protrusion (2c) is arranged on the side wall of the ratchet wheel (2), when the limiting protrusion (2c) of the ratchet wheel (2) touches the side wall of the pawl (4) during forward rotation of the ratchet wheel (2), the driving rod (2b) drives the guide piece (3) to rotate, the unlocking protrusion (3b) pushes the unlocking rod (4b) to lift the pawl (4), the unlocking rod (4b) is located on the lower side wall of the unlocking protrusion (3b), the central handrail is opened, and at this time, the gear teeth (2a) are engaged with the limiting pawl (4a) in the lowest position on the side wall of the ratchet wheel (2). The ratchet wheel (2) is reversely rotated, the pawl (4) is lifted, the gear teeth (2a) are respectively engaged with a plurality of gear teeth (2a) on the side wall of the ratchet wheel (2), when the driving rod (2b) touches the side wall of the arc-shaped guide groove (3a) to drive the guide piece (3) to rotate, the unlocking protrusion (3b) pushes the unlocking rod (4b) to lift the pawl (4), the unlocking rod (4b) is located on the upper side wall of the unlocking protrusion (3b), and the central handrail is closed.
4. The angularly adjustable center console of claim 3, wherein: The gear angle of the gear teeth (2a) adjacent to each other on the ratchet wheel (2) is 8°.
5. The angle adjustable central handrail according to claim 1 or 2, characterized in that: The right support (10) is provided with a limiting sheet (12), the right end of the rotating shaft (1) is rotatably installed on the limiting sheet (12), the limiting sheet (12) is provided with an arc-shaped limiting slot (12a), a limiting shaft (13) is fixed on the right support (10) close to the handrail framework (8), the limiting shaft (13) extends into the arc-shaped limiting slot (12a), and the two ends of the arc-shaped limiting slot (12a) can limit the opening and closing adjustment of the handrail framework (8).
6. The angle adjustable central handrail according to claim 2, characterized in that: A connecting sheet (14) is installed outside the ratchet wheel (2) and the pawl (4), and the connecting sheet (14) is fixed on the rotating shaft (1) and the intermediate shaft (11).
7. The angle adjustable central handrail according to claim 6, characterized in that: A damping washer (7) is installed on the intermediate shaft (11) outside the rotating shaft (1), and a stepped bolt (6) is installed outside the damping washer (7).