handrail

Abstract

The utility model discloses a handrail, including base, limit seat and handrail rod, one end of limit seat rotatablely set up on base through pivot joint axle, one end of handrail rod is fixed on limit seat, be equipped with first limit portion and second limit portion on limit seat, be equipped with first abutting portion and second abutting portion on base, when limit seat rotates to first position along first direction around pivot joint axle, first limit portion and first abutting portion mutually resist to limit handrail rod in first position, when limit seat rotates to second position along the reverse direction of first direction around pivot joint axle, second limit portion and second abutting portion mutually resist to limit handrail rod in second position. The utility model discloses handrail can make car frame simple structure, be favorable to reduce car frame volume and weight, and it is also very convenient and fast to fold up.

Description

Technical Field

[0001] This utility model relates to a mobility scooter seat, and more particularly to an armrest for a mobility scooter seat. Background Technology

[0002] Most existing mobility scooter seats are equipped with armrests. To minimize the space occupied when folded and create a more compact structure, the armrests are typically designed to fold in conjunction with the frame. This design usually requires a deformable quadrilateral linkage mechanism on the armrest, and a connecting rod between the frame and the linkage mechanism to ensure the coordinated folding of the frame and armrest. This significantly increases the number of links in the frame, complicating the structure and resulting in a larger, heavier frame that occupies more space when folded, making it inconvenient for carrying and storing. Utility Model Content

[0003] The purpose of this invention is to provide a handlebar that simplifies the frame structure, reduces the frame size and weight, and is easy and quick to fold.

[0004] The handrail provided by this utility model includes a base, a limiting seat, and a handrail. One end of the limiting seat is rotatably mounted on the base via a pivot shaft, and one end of the handrail is fixed to the limiting seat. The limiting seat is provided with a first limiting part and a second limiting part, and the base is provided with a first abutment and a second abutment. When the limiting seat rotates around the pivot shaft in a first direction to a first position, the first limiting part and the first abutment abut against each other to restrict the handrail in the first position. When the limiting seat rotates around the pivot shaft in the opposite direction of the first direction to a second position, the second limiting part and the second abutment abut against each other to restrict the handrail in the second position. Compared with existing technologies, this utility model, by pivoting a limiting seat onto a base and fixing the handrail to the limiting seat, allows the handrail and the limiting seat to rotate relative to the base. Furthermore, a first limiting part and a second limiting part are provided on the limiting seat, and a first abutment and a second abutment are provided on the base to abut against the first limiting part and the second limiting part, respectively. This ensures that the handrail is limited when rotated to both the first and second positions. Therefore, when the frame is unfolded, the handrail can be opened to the first position for use; when the frame is folded, the handrail can be folded to the second position. Users only need to move the handrail up or down to rotate it, making folding very convenient and quick. Moreover, compared with traditional linkage folding structures, it reduces the use of four-linkage mechanisms and linkage rods, significantly reducing the frame's structural members, resulting in a significant reduction in both the frame's weight and folded volume. The structure is very simple, greatly facilitating travel, carrying, and storage.

[0005] Preferably, the base has a protrusion at one end facing the limiting seat, the first abutment is disposed at one end of the protrusion to receive the first limiting part rotating in the first direction; the second abutment is disposed at the other end of the protrusion to receive the second limiting part rotating in the opposite direction of the first direction.

[0006] Specifically, the limiting seat has a protruding mating portion on the side opposite to the base. The first limiting portion is located on the side of the mating portion facing the first abutment, and the limiting seat forms a second limiting portion on its outer edge facing the second abutment. This allows the base and the limiting seat to achieve a limiting fit, and also conceals the first abutment, the second abutment, the first limiting portion, and the second limiting portion between the base and the limiting seat, preventing them from being exposed and thus improving the aesthetics of the seat and frame.

[0007] Preferably, the first limiting part, the second limiting part, the first abutment top, and the second abutment top are all surfaces. By abutting face to face, the pressure between the base and the limiting seat can be reduced, preventing one of them from being damaged due to excessive unit pressure, thereby helping to extend the service life of the handrail.

[0008] Preferably, the base is provided with a connector. The connector allows the base to be easily and quickly installed onto the seat of the mobility scooter, improving assembly convenience.

[0009] Specifically, the limiting seat has a clearance groove on the side facing the base, and the clearance groove corresponds to the connector so that when the handrail is rotated to the first position, the clearance groove can accommodate the connector head of the connector.

[0010] Preferably, the handrail rotates at an angle of not less than 90 degrees from the first position to the second position. Attached Figure Description

[0011] Figure 1 This is a diagram showing the armrest of this utility model when it is unfolded relative to the seat.

[0012] Figure 2 This is a side view of the armrest of this utility model when it is installed on a seat.

[0013] Figure 3 This is a three-dimensional view of the handrail of this utility model.

[0014] Figure 4 This is an exploded view of the handrail of this utility model.

[0015] Figure 5 This is a structural diagram of the base of the handrail and the limiting seat of this utility model.

[0016] Figure 6 This is a cross-sectional view of the handrail of this utility model along the diameter direction of the pivot axis.

[0017] Figure 7 This is a cross-sectional view of the handrail of this utility model along the central axis of the pivot axis.

[0018] Figure 8 This is a diagram showing the armrest of this utility model when it is folded relative to the seat. Detailed Implementation

[0019] To explain in detail the technical content, structural features, objectives and effects of this utility model, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0020] Please see Figures 1 to 6 This utility model discloses an armrest 100, installed on the backrest 201 of a mobility scooter seat 200. The armrest 100 includes a base 1, a limiting seat 2, and an armrest 3. The limiting seat 2 is rotatably mounted on the base 1 via a pivot shaft 4. One end of the armrest 3 is sleeved and fixed in a fixing hole 23 on the limiting seat 2. The limiting seat 2 is provided with a first limiting part 21 and a second limiting part 22. The base 1 is provided with a first abutment 11 and a second abutment 12. When the limiting seat 2 rotates around the pivot shaft 4 in a first direction to a first position (relative to the backrest unfolded position), the first limiting part 21 abuts against the first abutment 11 to restrict the armrest 3 in the first position. When the limiting seat rotates around the pivot shaft 4 in the opposite direction of the first direction to a second position (relative to the backrest folded position), the second limiting part 22 abuts against the second abutment 12 to restrict the armrest 3 in the second position. The handrail 3 rotates at an angle of not less than 90 degrees from the first position to the second position. The first direction is... Figure 1 The counterclockwise direction in the middle, the opposite direction of the first direction is Figure 1 The clockwise direction in the middle.

[0021] For example Figure 5As shown, the base 1 has a protruding protrusion 1a at one end facing the limiting seat 2. The first abutment 11 is disposed at one end of the protrusion 1a to receive the first limiting part 21 rotating in a first direction. The second abutment 12 is disposed at the other end of the protrusion 1a to receive the second limiting part 22 rotating in the opposite direction of the first direction. The limiting seat 2 has a protruding mating part 2a on the side opposite to the base 1. The first limiting part 21 is disposed on the side of the mating part 2a facing the first abutment 11. The second limiting part 22 is formed on the outer edge of the limiting seat 2 facing the second abutment 12. This allows the base 1 and the limiting seat 2 to achieve a limiting fit, and also hides the first abutment 11, the second abutment 12, the first limiting part 21, and the second limiting part 22 between the base 1 and the limiting seat 2, avoiding exposure and thus improving the aesthetics of the seat 200 and the frame.

[0022] The first limiting part 21, the second limiting part 22, the first abutment 11, and the second abutment 12 are all surfaces, specifically planes. By abutting face to face, the pressure between the base 1 and the limiting seat 2 can be reduced, preventing one of them from being damaged due to excessive unit pressure, thereby helping to extend the service life of the handrail 100.

[0023] Please see again Figure 4 and Figure 7 The base 1 is provided with a connector 1b. The connector 1b allows the base 1 to be easily and quickly installed on the seat 200 of the mobility scooter, improving assembly convenience. Specifically, the limiting seat 2 has a clearance groove 2b on the side facing the base 1. The clearance groove 2b corresponds to the connector 1b, so that when the armrest 3 is rotated to the first position, the clearance groove 2b can accommodate the connector head of the connector 1b.

[0024] In summary and in combination Figure 8 The working principle of the handrail 100 of this utility model is described in detail below: When the handrail 100 is unfolded at a 90-degree angle relative to the backrest 201, the first limiting part 21 abuts against the first abutment 11. At this time, the handrail 3 is blocked in the first direction and is in a load-bearing positioning state. When it is necessary to fold the handrail 100, the handrail 3 is driven to rotate upward around the pivot shaft 4, causing the handrail 3 to flip upward at a 90-degree angle. The second limiting part 22 abuts against the second abutment 12. At this time, the handrail 3 is blocked in the opposite direction of the first direction and is in a folded and positioned state relative to the backrest 201. When used again, the handrail 3 is flipped downward until the first limiting part 21 abuts against the first abutment 11 again, and the handrail 3 is then in the unfolded state.

[0025] Compared with the prior art, this utility model, by pivotally connecting the limiting seat 2 to the base 1 and fixing the handrail 3 to the limiting seat 2, allows the handrail 3 and the limiting seat 2 to rotate relative to the base 1. Furthermore, a first limiting part 21 and a second limiting part 22 are provided on the limiting seat 2, and a first abutting top 11 that abuts against the first limiting part 21 and a second abutting top 12 that abuts against the second limiting part 22 are provided on the base 1. This ensures that the handrail 100 is limited when rotated to both the first and second positions. Therefore, when the frame is unfolded, the handrail 100 can be opened to the first position for use; when the frame is retracted, the handrail 100 can be folded to the second position. The user only needs to move the handrail 3 up or down to rotate it, making folding very convenient and quick. Moreover, compared to the traditional linkage folding structure, it can reduce the use of four-linkage mechanisms and linkage rods, greatly reducing the number of frame components, resulting in a significant reduction in frame weight and folded volume. The structure is very simple, making it extremely convenient for travel, carrying, and storage.

[0026] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A handrail, characterized in that: The device includes a base, a limiting seat, and an armrest. One end of the limiting seat is rotatably mounted on the base via a pivot shaft, and one end of the armrest is fixed to the limiting seat. The limiting seat has a first limiting part and a second limiting part, and the base has a first abutment and a second abutment. When the limiting seat rotates around the pivot shaft in a first direction to a first position, the first limiting part and the first abutment abut against each other to restrict the armrest in the first position. When the limiting seat rotates around the pivot shaft in the opposite direction of the first direction to a second position, the second limiting part and the second abutment abut against each other to restrict the armrest in the second position.

2. The handrail according to claim 1, characterized in that: The base has a protruding part at one end facing the limiting seat. The first abutment is disposed at one end of the protrusion to receive the first limiting part rotating in the first direction. The second abutment is disposed at the other end of the protrusion to receive the second limiting part rotating in the opposite direction of the first direction.

3. The handrail according to claim 2, characterized in that: The limiting seat has a protruding mating part on the side opposite to the base. The first limiting part is located on the side of the mating part facing the first abutment. The limiting seat forms the second limiting part on the outer edge facing the second abutment.

4. The handrail according to any one of claims 1 to 3, characterized in that: The first limiting part, the second limiting part, the first abutment top, and the second abutment top are all surfaces.

5. The handrail according to claim 1, characterized in that: The base is equipped with a connector.

6. The handrail according to claim 5, characterized in that: The limiting seat has a clearance groove on the side facing the base, and the clearance groove corresponds to the connector so that when the handrail is rotated to the first position, the clearance groove can accommodate the connector head of the connector.

7. The handrail according to claim 1, characterized in that: The handrail rotates at an angle of not less than 90 degrees from the first position to the second position.

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