Handrail capable of achieving forward and reverse buffering through double gas springs

Abstract

The utility model discloses an armrest capable of achieving forward and reverse buffering through double gas springs, which comprises a seat chaining iron support and an armrest large framework, the iron support is fixed in the armrest large framework, and the armrest large framework and the iron support can rotate around one end of the seat chaining iron support. A first limiting stop point support and a second limiting stop point support which are oppositely arranged are fixed to the inner side of the seat chaining iron support, the inner side ends of the first limiting stop point support and the second limiting stop point support extend into the iron support, and a falling air spring and a return air spring are fixed into the armrest large framework. The movable ends of the falling gas spring and the return gas spring are respectively fixed at the inner side ends of the first limiting stop point bracket and the second limiting stop point bracket; the falling gas spring is used for providing damping force in the opening and falling process of the armrest large framework and achieving slow falling of the armrest large framework when the armrest large framework is opened, and the return gas spring is used for providing damping force in the return and falling process of the armrest large framework and achieving slow falling of the armrest large framework when the armrest large framework returns.

Description

Technical Field

[0001] This utility model relates to the field of automotive seat technology, and in particular to an armrest that uses dual gas springs to achieve positive and negative cushioning. Background Technology

[0002] Today, customers have increasingly higher demands for ride comfort, requiring higher standards in terms of visual appeal, tactile feel, and noise reduction for various in-car components. Many rear armrests currently only require a cushioning effect when lowering to ensure a slow descent, providing a good visual experience and eliminating the impact noise of a falling object. However, they neglect the issue of the armrest freely falling back to its original position. Traditional seat armrests typically use a simple rigid connection structure, directly connected to the seat. During operation, the armrest's movement is relatively simple and lacks a cushioning mechanism. When a user opens or lowers the armrest, due to the lack of a cushioning device, the armrest falls or returns to its original position at a relatively fast speed, generating significant impact and noise. This impact not only affects the user experience, causing discomfort, but may even lead to collision injuries; furthermore, long-term impact can damage the connecting components between the seat and the armrest, reducing the seat's lifespan and increasing repair and replacement costs. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an armrest that achieves positive and negative buffering through dual gas springs. This armrest avoids the impact sound of the armrest colliding with the seat when the armrest returns to its original position and falls freely, as well as the vibration caused by excessive inertia when the armrest returns to its original position and locks. The slow return also provides customers with a better visual experience.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A handrail that uses dual gas springs to achieve positive and negative cushioning, comprising:

[0006] The seat connects to a metal bracket and an armrest frame. The armrest frame contains a fixed metal bracket, and both the armrest frame and the metal bracket are rotatable around one end of the seat connecting metal bracket. A first and second limiting stop bracket are fixed to the inner side of the seat connecting metal bracket, with their inner ends extending into the metal bracket. A lowering gas spring and a returning gas spring are fixed inside the armrest frame, with their movable ends fixed to the inner ends of the first and second limiting stop brackets, respectively. The lowering gas spring provides damping force during the opening and lowering process of the armrest frame, achieving a slow descent when the armrest frame is opened. The returning gas spring provides damping force during the returning and lowering process of the armrest frame, achieving a slow descent when the armrest frame is returned to its original position.

[0007] In one or more embodiments of this utility model, a first angle adjuster and a second angle adjuster are fixed on the outer side of the iron bracket and are respectively arranged opposite to each other. The outer sides of the first angle adjuster and the second angle adjuster are fixed to the inner side of the seat connecting iron bracket. The first angle adjuster and the second angle adjuster are unlocked by an unlocking component.

[0008] In one or more embodiments of this utility model, the unlocking component includes a handrail unlocking buckle fixed to the handrail frame, a handrail unlocking pull rope fixed inside the handrail frame, a handle hinged inside the handrail unlocking buckle, one end of the handrail unlocking pull rope fixed to the handle, a synchronizing rod fixed between the rotating shafts of the first and second angle adjusters, an angle adjuster unlocking plate sleeved and fixed on the synchronizing rod, and the other end of the handrail unlocking pull rope fixed to the outer end of the angle adjuster unlocking plate.

[0009] In one or more embodiments of this utility model, the iron support includes a reinforcing iron support fixed inside the armrest frame, and hinge supports are fixed on both sides of the reinforcing iron support, the hinge supports being fixed to the inner side of the edge of the armrest frame.

[0010] In one or more embodiments of this utility model, the armrest frame has two protruding protrusions, and a roller is fixed between the two protrusions. The other end of the armrest unlocking pull rope is fixed to the outer end of the angle adjuster unlocking plate after the direction is changed by the roller.

[0011] In one or more embodiments of this utility model, two oppositely arranged notches are provided on the armrest frame, one end of the seat connecting iron bracket is located outside the notch, and the first and second angle adjusters are respectively located inside the notch; the middle parts of the first and second limit stop brackets respectively penetrate the notch.

[0012] The beneficial effects of this utility model are:

[0013] This invention utilizes one gas spring to limit the free fall of the armrest when it is opened, enabling the armrest to fall slowly; another gas spring limits the free fall of the armrest after it has turned more than 90 degrees when it returns to its original position, enabling the armrest to return slowly. This avoids the impact sound of the armrest colliding with the seat during free fall and the vibration caused by excessive inertia when the armrest is locked in place. The slow return also provides customers with a better visual experience. The dual gas spring structure uses two gas springs to ensure that the armrest falls slowly when it is opened and when it returns to its original position, avoiding the impact sound of the armrest colliding with the seat and the vibration caused by excessive inertia when the armrest falls. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a top view after removing the seat connecting iron bracket;

[0016] Figure 3 This is a structural diagram after removing the seat connecting iron bracket and the armrest frame;

[0017] Figure 4 This is a side view of the present invention. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0019] In this embodiment, as Figures 1 to 4 As shown, an armrest with positive and negative buffering via dual gas springs includes a seat connecting iron bracket 1 and an armrest frame 2. An iron bracket is fixed inside the armrest frame 2. The armrest frame 2 and the iron bracket are rotatable around one end of the seat connecting iron bracket 1. A first limiting stop bracket 4 and a second limiting stop bracket 5 are fixed to the inner side of the seat connecting iron bracket 1, with their inner ends extending into the iron bracket. A falling gas spring 6 and a returning gas spring 7 are fixed inside the armrest frame 2. The movable ends of the falling gas spring 6 and the returning gas spring 7 are respectively fixed to the inner ends of the first limiting stop bracket 4 and the second limiting stop bracket 5. The falling gas spring 6 provides damping force during the opening and falling process of the armrest frame 2, achieving a slow descent when the armrest frame 2 is opened. The returning gas spring 7 provides damping force during the returning and falling process of the armrest frame 2, achieving a slow descent when the armrest frame 2 is returned to its original position.

[0020] In this embodiment, to achieve the buffering function of the armrest frame 2 during different movements, a falling gas spring 6 and a returning gas spring 7 are fixed inside the armrest frame 2. The movable ends of the falling gas spring 6 and the returning gas spring 7 are respectively fixed to the inner ends of the first limit stop bracket 4 and the second limit stop bracket 5. The falling gas spring 6 provides damping force during the opening and falling process of the armrest frame 2, so that the armrest frame 2 can fall slowly when opening, avoiding the impact and noise caused by rapid falling, and improving the comfort and safety of use; the returning gas spring 7 plays a role in the returning and falling process of the armrest frame 2, providing damping force to ensure that the armrest frame 2 can also fall slowly when returning, preventing the impact force during returning from damaging other components.

[0021] The drop gas spring 6 and the return gas spring 7 differ in structure and model. The drop gas spring 6 only generates damping force when stretched, and has no damping force when compressed; the return gas spring 7 only generates damping force when compressed, and has no damping force when stretched. When the handrail falls, the drop gas spring 6 and the return gas spring 7 are stretched simultaneously, with the drop gas spring 6 generating damping force to achieve a cushioning effect during the fall; when the handrail returns to its original position, the drop gas spring 6 and the return gas spring 7 are compressed simultaneously, with the return gas spring 7 generating damping force to achieve a cushioning effect during the return.

[0022] In one or more embodiments of this utility model, a first angle adjuster 8 and a second angle adjuster 9 are fixed on the outer side of the iron bracket and are arranged opposite to each other. The outer sides of the first angle adjuster 8 and the second angle adjuster 9 are fixed to the inner side of the seat connecting iron bracket 1. The first angle adjuster 8 and the second angle adjuster 9 are unlocked by an unlocking component.

[0023] In one or more embodiments of this utility model, the unlocking component includes a handrail unlocking buckle 10 fixed to the handrail frame 2, a handrail unlocking pull rope 11 fixed inside the handrail frame 2, a handle hinged inside the handrail unlocking buckle 10, one end of the handrail unlocking pull rope 11 fixed to the handle, a synchronizing rod 12 fixed between the rotating shafts of the first angle adjuster 8 and the second angle adjuster 9, an angle adjuster unlocking piece 13 sleeved and fixed on the synchronizing rod 12, and the other end of the handrail unlocking pull rope 11 fixed to the outer end of the angle adjuster unlocking piece 13.

[0024] In this embodiment, a handrail unlocking handle 10 is fixed on the handrail frame 2, and a handrail unlocking pull rope 11 is fixed inside the handrail frame 2. A handle is hinged inside the handrail unlocking handle 10, and one end of the handrail unlocking pull rope 11 is fixed to the handle. When the user operates the handrail unlocking handle 10, the handrail unlocking pull rope 11 is pulled by the handle. A synchronizing rod 12 is fixed between the rotating shafts of the first angle adjuster 8 and the second angle adjuster 9. An angle adjuster unlocking plate 13 is sleeved and fixed on the synchronizing rod 12, and the other end of the handrail unlocking pull rope 11 is fixed to the outer end of the angle adjuster unlocking plate 13. When the handrail unlocking pull rope 11 is pulled, it will drive the angle adjuster unlocking plate 13 to move, thereby realizing the unlocking operation of the first angle adjuster 8 and the second angle adjuster 9, allowing the user to easily adjust the angle of the handrail.

[0025] In one or more embodiments of this utility model, the iron support includes a reinforcing iron support 3 fixed inside the handrail frame 2, and hinge supports 14 are fixed on both sides of the reinforcing iron support 3. The hinge supports 14 are fixed to the inner side of the edge of the handrail frame 2.

[0026] In this embodiment, the iron support includes a reinforcing iron support 3 fixed inside the handrail frame 2. Hinged supports 14 are fixed to both sides of the reinforcing iron support 3, and the hinged supports 14 are fixed to the inner edges of the handrail frame 2. This structural layout enhances the overall strength and stability of the handrail frame 2, ensuring that the handrail frame 2 will not deform or be damaged due to frequent operation during long-term use.

[0027] In one or more embodiments of this utility model, the armrest frame 2 has two protruding protrusions, and a roller 15 is fixed between the two protrusions. The other end of the armrest unlocking pull rope 11 is fixed to the outer end of the angle adjuster unlocking piece 13 after the direction is changed by the roller 15.

[0028] In this embodiment, the roller 15 enables the handrail unlocking rope 11 to move more smoothly, reduces friction, extends the service life of the rope, and ensures the reliability and stability of the unlocking operation.

[0029] In one or more embodiments of this utility model, two oppositely arranged notches are provided on the armrest frame 2, one end of the seat connecting iron bracket 1 is located outside the notch, and the first angle adjuster 8 and the second angle adjuster 9 are respectively located inside the notch; the middle parts of the first limiting stop bracket 4 and the second limiting stop bracket 5 respectively penetrate the notch.

[0030] In this embodiment, the notch provides the necessary space for the installation and movement of each component, enabling the entire handrail system to work in a coordinated and stable manner.

[0031] The fixed ends of the lowering gas spring 6 and the returning gas spring 7 are fixed to the handrail frame 2 by gas spring mounting bolts 16 and fixing seats.

[0032] Working principle of this utility model:

[0033] When the armrest opens and falls, the movable end of the falling gas spring 6 is fixed on the seat connecting iron bracket 1 and the first limit stop bracket 4. The movable end remains in the same position during the rotation of the armrest. The fixed end of the falling gas spring 6 is fixed inside the armrest frame 2. During the rotation of the armrest frame 2, the fixed end of the falling gas spring 6 will change position with the rotation of the armrest frame 2. Therefore, when the armrest frame 2 falls and rotates, the movable end and the fixed end of the falling gas spring 6 will perform piston movement with the rotation of the armrest frame 2. As the armrest gradually falls, the length of the falling gas spring 6 is also gradually stretched and increased. During the stretching process of the falling gas spring 6, because the piston movement inside the falling gas spring 6 will provide a resistance force for the stretching, this resistance force is the damping force during the falling process of the armrest frame 2, so as to realize the slow falling when the armrest frame 2 opens.

[0034] When the armrest frame 2 returns to its original position, if the return angle exceeds 90°, the armrest frame 2 will experience gravitational acceleration due to free fall, causing it to fall rapidly. During this return, the moving and fixed ends of the return gas spring 7 will rotate with the armrest frame 2, performing piston-like motion. As the armrest frame 2 falls, the length of the return gas spring 7 is gradually compressed. During the stretching process of the return gas spring 7, the piston motion inside the return gas spring 7 provides a counterforce to the compression. This counterforce acts as a damping force during the fall of the armrest frame 2, enabling the armrest frame 2 to fall slowly during its return.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A handrail that realizes positive and negative cushioning by double air springs, characterized by, include: The seat is connected to an iron bracket (1) and an armrest frame (2). An iron bracket is fixed inside the armrest frame (2). The armrest frame (2) and the iron bracket can rotate around one end of the seat connecting iron bracket (1). A first limiting stop bracket (4) and a second limiting stop bracket (5) are fixed on the inner side of the seat connecting iron bracket (1). The inner ends of the first limiting stop bracket (4) and the second limiting stop bracket (5) extend into the iron bracket. A falling air spring is fixed inside the armrest frame (2). The lowering gas spring (6) and the return gas spring (7) are respectively fixed to the inner ends of the first limit stop bracket (4) and the second limit stop bracket (5). The lowering gas spring (6) is used to provide damping force for the opening and lowering process of the handrail frame (2) to realize the slow lowering when the handrail frame (2) is opened. The return gas spring (7) is used to provide damping force for the return lowering process of the handrail frame (2) to realize the slow lowering when the handrail frame (2) is returned.

2. The handrail that realizes positive and reverse buffering through double air springs according to claim 1, characterized in that: The outer side of the iron bracket is fixed with a first angle adjuster (8) and a second angle adjuster (9) arranged opposite to each other. The outer side of the first angle adjuster (8) and the second angle adjuster (9) is fixed to the inner side of the seat link iron bracket (1). The first angle adjuster (8) and the second angle adjuster (9) are unlocked by an unlocking component.

3. The handrail that realizes positive and reverse buffering through double air springs according to claim 2, characterized in that: The unlocking assembly includes a handrail unlocking buckle (10) fixed on the handrail frame (2), a handrail unlocking pull rope (11) fixed inside the handrail frame (2), a handle hinged inside the handrail unlocking buckle (10), one end of the handrail unlocking pull rope (11) fixed to the handle, a synchronizing rod (12) fixed between the rotating shafts of the first angle adjuster (8) and the second angle adjuster (9), an angle adjuster unlocking plate (13) sleeved and fixed on the synchronizing rod (12), and the other end of the handrail unlocking pull rope (11) fixed to the outer end of the angle adjuster unlocking plate (13).

4. The handrail with positive and negative cushioning achieved by double air springs according to claim 1, characterized in that: The iron support includes a reinforcing iron support (3) fixed inside the handrail frame (2), and hinge supports (14) are fixed on both sides of the reinforcing iron support (3). The hinge supports (14) are fixed to the inner side of the edge of the handrail frame (2).

5. The handrail of claim 3, wherein: The armrest frame (2) has two protruding protrusions, and a roller (15) is fixed between the two protrusions. The other end of the armrest unlocking pull rope (11) is fixed to the outer end of the angle adjuster unlocking piece (13) after the direction is changed by the roller (15).

6. The handrail with positive and negative cushioning achieved by double air springs according to claim 2, characterized in that: The armrest frame (2) has two opposite notches, one end of the seat connecting iron bracket (1) is located outside the notch, and the first angle adjuster (8) and the second angle adjuster (9) are located inside the notch respectively; the middle parts of the first limit stop bracket (4) and the second limit stop bracket (5) pass through the notch respectively.

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