Simplified saddle hinge for saddle riding vehicles

Abstract

A saddle hinge of a saddle-riding vehicle is described, comprising a first hinge portion connectable to a saddle lower body and a second hinge portion connectable to a saddle. The first and second hinge portions are pivotally connected to each other about a pin. At least one resilient element is mounted between the first and second hinge portions and shaped to facilitate opening of the saddle. The saddle hinge comprises a first abutment formed on the first and / or second hinge portion, shaped to be in contact with the resilient element and to define a first stable open position of the saddle having a first opening angle. Furthermore, the saddle hinge comprises a second abutment formed on the first and / or second hinge portion, configured to define a second stable open position of the saddle having a second opening angle greater than the first opening angle.

Description

Technical Field

[0001] The present invention relates to a hinge for mounting a saddle on a saddle-riding vehicle, such as a motorcycle, scooter, or the like. Background Technology

[0002] For example, a scooter includes a saddle configured to open to provide access to a storage compartment under the saddle for storing a helmet or other items. The storage compartment is formed in the central body of the motorcycle, and the saddle is mounted to the compartment via a saddle hinge that allows the saddle to open and close, thereby providing access to the storage compartment.

[0003] Saddle hinges have been developed for this purpose, making it easier for users to keep the saddle in a stable open position so that items can be removed from or placed into the lower compartment of the saddle, while preventing the saddle from closing accidentally.

[0004] WO2018180034 discloses a saddle hinge that allows the saddle to open in two different angular positions. In each of these positions, the saddle remains in a stable position. In the first position, the saddle is partially opened, maintaining at least partial overlap with the lower saddle compartment. In the second position, the saddle is fully opened beyond the vertical direction, forming a complete passage to the lower saddle compartment without obstructing access from above.

[0005] The saddle hinge in WO2018180034 employs a hinge mechanism comprising multiple pivotable and slidably interconnected elements, leading to decreased reliability over time. Specifically, it has been found that the hinge mechanism is prone to at least partial jamming with prolonged use. This is due to the ease with which its components loosen, resulting in less smooth opening and closing of the saddle. When closing the saddle, this deficiency can cause misalignment with the locking mechanism, making it difficult for the saddle itself to close. Summary of the Invention

[0006] Therefore, the object of the present invention is to provide a saddle hinge for a saddle-riding vehicle that provides the same function while being simpler and more reliable in structure.

[0007] The aforementioned objective is now achieved by a saddle hinge in a saddle-riding vehicle. Specifically, the saddle-riding vehicle includes a saddle lower body defining a storage compartment, and a saddle. The saddle is pivotally mounted to the saddle lower body and configured to selectively switch between an open configuration allowing access to the storage compartment and a closed configuration closing the passageway to the storage compartment.

[0008] Specifically, the saddle hinge includes a first hinge portion configured to connect to the lower body of the saddle and a second hinge portion configured to connect to the saddle. The first and second hinge portions are pivotally connected to each other by a pin defining a corresponding hinge axis extending longitudinally along the pin.

[0009] An elastic element is also provided between the first hinge portion and the second hinge portion. The elastic element (in particular at least one spring) is configured to facilitate opening the saddle, that is, to generate an elastic force that facilitates relative rotation of the second hinge portion about the hinge axis in the saddle opening direction relative to the first hinge portion.

[0010] The saddle hinge further includes a first abutment portion formed on the first and / or second hinge portion and configured to contact the elastic element, defining a first stable opening position of the saddle, the first opening position being defined by a first opening angle. The opening angle refers to the angle formed between the two portions of the respective hinge, which is substantially equal to the angle formed between the saddle and the top plane of the saddle lower body. The saddle hinge further includes a second abutment portion formed on the first and / or second hinge portion and configured to define a second stable opening position of the saddle, the second stable opening position having a second opening angle greater than the first opening angle.

[0011] Therefore, compared with existing solutions, the saddle hinge according to the present invention is structurally simplified, eliminating the need for additional interconnecting elements between the first and second hinge portions to define different stable opening positions. According to the present invention, the saddle hinge uses simple abutment portions formed on the hinge portions, which cooperate with the elastic element to define one of the two stable opening positions of the saddle. Thus, the saddle hinge has a simple structure, low production cost, and high functionality.

[0012] Advantageously, the first abutment is formed on the first hinge portion and includes an abutment wall defining a shoulder, on which the resilient element rests stably when the first opening angle is reached, thereby stably holding the saddle in the first open position. Thus, the first abutment is simply formed by shaping the first hinge portion without the need for additional constraint elements arranged between the first and second portions.

[0013] Advantageously, the second abutment is formed on the first and second hinge portions and includes corresponding shoulders that contact each other when the second opening angle is reached. Similarly, in this case, specifically, the second abutment is formed by shaping the first and second portions and juxtaposing them to define a second stable position.

[0014] Specifically, the first opening angle a1 is less than 90°, and specifically between 70° and 80°.

[0015] Preferably, the second opening angle (a2) is between 75° and 110°, and particularly between 80° and 100°.

[0016] Advantageously, the elastic element is a torsion spring, which is mounted on the pin and includes an abutment portion that contacts the second hinge portion and generates a torque that facilitates relative rotation of the second hinge portion relative to the first hinge portion in the opening direction of the saddle.

[0017] Advantageously, the first hinge portion includes a first bottom wall adapted to be fixed to the lower body of the saddle, and wherein the adjacent wall extends from the first bottom wall, defining an "L" shape or a folded shape.

[0018] Specifically, the adjacent wall extends obliquely from the first bottom wall, defining an adjacent angle.

[0019] Advantageously, the second hinge portion includes a second bottom wall adapted to be fixed to the saddle, and an abutment wall is provided therein, the abutment wall extending from the second bottom wall and defining an "L" shape or folded shape. The abutment wall extends obliquely from the second bottom wall, defining an abutment angle, wherein the abutment portion of the torsion spring rests abuttingly on the abutment wall.

[0020] Preferably, the first hinge portion and the second hinge portion partially overlap at corresponding holes formed at opposite ends of each other, the holes being shaped to accommodate the pin and pivotally connect the first and second hinge portions together. Attached Figure Description

[0021] The following description, with reference to the accompanying drawings, outlines some embodiments given by way of non-exhaustive examples to highlight further advantages and additional features of the invention, wherein:

[0022] Figure 1 A perspective side view of a saddle-riding vehicle, particularly a scooter, is shown, the saddle-riding vehicle having a saddle-underbody and a saddle in an open configuration, the saddle being connected to the body by a saddle hinge according to the invention;

[0023] Figure 2 A perspective view of the saddle hinge according to the present invention is shown;

[0024] Figure 3 , 3A 3B and 3C respectively show Figure 2 Top view, side view and bottom view of the saddle hinge;

[0025] Figure 4 A cross-sectional view of the saddle hinge in the closed position is shown;

[0026] Figure 4A A cross-sectional view of the saddle hinge in the first open position is shown;

[0027] Figure 4B A cross-sectional view of the saddle hinge in the second open position is shown;

[0028] Figure 5A The image shows a side view of a motorcycle, with the saddle positioned as follows: Figure 4A Open at the first opening position;

[0029] Figure 5B The image shows a side view of a motorcycle, with the saddle positioned as follows: Figure 4B The second opening position is activated. Detailed Implementation

[0030] The following description, with reference to the accompanying drawings, illustrates one or more embodiments of the present invention. Like reference numerals in the drawings denote like or similar elements. The object of the invention is defined by the appended claims. The technical details, structures, or features of the solutions described below can be combined with each other in any manner.

[0031] Figure 1 A saddle-mounted vehicle 100, particularly a scooter, is shown. It is well known that a scooter 100 includes at least a front steering wheel 103 and a rear drive wheel 104, both controlled by handlebars 107. Specifically, in... Figure 1 The following figures depict a three-wheeled motorcycle with two front wheels 102, which are mounted via a four-bar linkage that allows the vehicle to tilt.

[0032] The motorcycle includes a saddle lower body 101 in which a storage compartment 105 is formed. A saddle 102 is pivotally connected to the saddle lower body 101, on which a saddle hinge 10 according to the invention is mounted. Specifically, the saddle hinge 10 includes a first hinge portion 1 shaped in a known manner to be fixed to the saddle lower body 101 and a second hinge portion 2 shaped to be fixed to the saddle 102. The first hinge portion 1 includes a fixing hole 1' arranged to connect to the saddle lower body 101. Similarly, the second hinge portion 2 includes a fixing hole 2' to achieve fixation to the saddle 102.

[0033] The first hinge portion 1 and the second hinge portion 2 are pivotally hinged to each other about a pin 3, which defines the hinge axis AA. Therefore, the second hinge portion 2 supporting the saddle 102 can be positioned relative to the first hinge portion 1 fixed to the motorcycle body 101 in opposite opening directions T1 and closing directions T2. Figure 1 They rotate relative to each other.

[0034] Furthermore, the saddle hinge 10 includes at least one elastic element 4 disposed between the first hinge portion 1 and the second hinge portion 2. The elastic element 4 generates an elastic force between the first and second hinge portions 1 and 2, which facilitates and assists the opening of the saddle 102 in the direction T1.

[0035] The saddle hinge 10 further includes a first abutment portion 5, which is formed on the first and / or second hinge portion and engages with the resilient element 4. The first abutment portion 5 is shaped to securely support the resilient element 4, thereby defining a first stable position A1 for opening the saddle 102. Figure 5A The first stable position A1 of the saddle 102 is determined by the first opening angle α1 measured relative to the first hinge portion 1 and the second hinge portion 2. Figure 4A )limited.

[0036] The saddle hinge 10 further includes second adjacent portions 7 and 8, which are formed on the first and / or second hinge portions and offset at an angle relative to the first adjacent portion 5. The second adjacent portions 7 and 8 define a second stable opening position A2 of the saddle 102, the second opening angle a2 of which is greater than the first opening angle a1.

[0037] Structurally, in a preferred embodiment, the first abutment portion 5 is formed on the first hinge portion 1 and includes an abutment wall 5'. When the first opening angle a1 is reached, the elastic element 4 abuts against the abutment wall, thereby maintaining the saddle 102 in the first stable opening position A1.

[0038] Preferably, the second adjacent portion is formed on the first and second hinge portions and includes corresponding shoulders 7 and 8. When the second opening angle a2 is reached, the shoulders 7 and 8 contact each other, thereby maintaining the saddle 102 in the second stable opening position A2.

[0039] Specifically, in the first stable opening position A1, the first opening angle α1 is less than 90°, particularly between 70° and 80°. In this case, as... Figure 5AAs shown, the saddle 102 is positioned at a distance from the handlebars 107 and at least partially overlaps with the upper part of the storage compartment 105. The first open position A1 of the saddle is used, for example, to store or retrieve items that are not particularly large from the compartment 105. However, the static position of the saddle 102 allows for unimpeded operation within the storage compartment 105 without requiring the saddle 102 to be supported.

[0040] In contrast, in the second stable open position A2, the second opening angle a2 is greater than the first opening angle a1, and is substantially between 75° and 110°, particularly between 80° and 100°. The second opening angle a2 is advantageously greater than 90°, thereby allowing the saddle 102 to open beyond the vertical direction, thus completely clearing the space above the storage compartment 105. The saddle 102 is substantially closer to the handlebars 107.

[0041] Structurally, such as Figure 2 or Figure 3 , 3 As shown in a, 3b, and 3c, the elastic element 4 is a torsion spring mounted on the pin 3.

[0042] The torsion spring 4 includes an abutment portion 4' which is shaped to abut against the second hinge portion 2. The abutment portion 4' applies the elastic force of the torsion spring to the second hinge portion 2, thereby generating a torque that facilitates the relative rotation of the second hinge portion 2 with respect to the first hinge portion 1 in the opening direction of the saddle 102.

[0043] Structurally, the torsion spring 4 also includes a fixing portion 4'' relative to the first hinge portion 1, which prevents the torsion spring 4 from rotating relative to the pin 3. The fixing portion 4'' is represented by two metal wires on opposite ends of the spring, which are secured to the first hinge portion 1 to keep the torsion spring 4 fixed, thereby preventing it from rotating around the pin 3. Figure 3 In contrast, the abutting portion 4' is a curved portion formed on the centerline of the torsion spring, which extends cantilevered relative to the pin 3. This curved portion abuts against the second hinge portion 2 and applies elastic force to the second hinge portion.

[0044] When hinge 10 is operated, the abutting part 4' contacts the second hinge part 2 until the first opening angle α1 is reached. Figure 3B , 4 And 4A), and when rotated beyond the first opening angle a1 to reach the second stable position A2 with the second opening angle a2, it is spaced apart from the second hinge portion 2 ( Figure 4B ).

[0045] Specifically, the first hinge portion 1 includes a first bottom wall 1a adapted for attachment to the saddle lower body 101. An abutment wall 5' extends from the first bottom wall 1a, defining an "L" shape. The abutment wall 5' extends obliquely from the bottom wall 1a, defining an abutment angle b1. Figure 4A Specifically, the abutment wall 5' is integrally formed in the first hinge portion 1, as described in detail below.

[0046] Similarly, the second hinge portion 2 includes a second bottom wall 2a adapted to be fixed to the saddle 102. The second hinge portion 2 includes an abutment wall 6 extending from the second bottom wall 2a, defining an "L" shape.

[0047] In detail, the abutment wall 6 extends obliquely from the second bottom wall 2a, defining an abutment angle b2. The abutment portion 4' of the torsion spring 4 rests abuttingly on the abutment wall 6. The abutment wall 6 determines the preload of the torsion spring 4 when the saddle hinge 10 is in closed configuration C ( Figure 4 When the saddle 102 is opened, the abutting part 4' is preloaded. When the saddle 102 is opened, the abutting part 4' pushes against the abutting wall 6, thereby assisting the saddle 102 to open in the opening direction T1.

[0048] In other words, the torsion spring 4 acts on the second hinge 2 through the abutment portion 4'. The abutment portion 4' is a cantilevered coiled section of the torsion spring that protrudes relative to the axis AA and contacts the second hinge portion, specifically the abutment wall 6. The abutment wall 6 is shaped to preload the spring and generate an elastic torque once the locking member 108 of the saddle lower compartment 105 is opened ( Figure 1 This elastic torque will cause the saddle 102 to open. Thus, the spring force generated by the torsion spring 4 assists the saddle 102 in opening along the opening direction T1, making opening easier. The elastic force of the torsion spring 4 essentially counteracts the weight of the saddle 102 during the opening phase.

[0049] When the saddle hinge 10 reaches the first stable open position A1, the adjacent wall 5' and the abutment wall 6 are aligned with respect to plane P. In this position, the abutment portion 4' is unloaded, and since the center of gravity of the saddle 102 is located to the right of axis AA, the saddle 102 maintains the first equilibrium position A1. If a further thrust is applied beyond this first stable position A1, the saddle 102 will rotate further until it reaches the second stable position A2. Figure 4B In this position, as described above, the abutting portion 4' of the spring 4 is no longer in direct contact with the abutting wall 6.

[0050] Structurally, such as Figure 4 and 4AAs better illustrated, the first hinge portion includes a support wall 1d extending from the bottom wall 1a and connecting to the adjacent wall 5'. Therefore, the shape of the first hinge portion 1 defines a housing for the pin 3 in the support wall 1d and the adjacent wall 5', which extends integrally from the support wall 1d. Figure 3 As better shown in diagram c, the adjacent wall 5' extends to at least partially surround the pin 3 and the torsion spring 4. Thus, the axis of the pin 3 lies on a plane P2 below the plane P1 containing the bottom wall 1a of the first hinge portion 1. This shape of the pin 3 in an offset position relative to the bottom wall 1a of the first hinge portion 1 makes the saddle hinge more versatile and adaptable to different types of saddle-riding vehicles.

[0051] In other structural aspects, the first hinge portion 1 and the second hinge portion 2 partially overlap each other at corresponding holes 1b and 2b formed at opposite ends; the holes 1b and 2b are shaped to receive pins 3 and pivotally connect the first hinge portion 1 and the second hinge portion 2 together.

[0052] In detail, such as Figure 2 As shown, the first hinge portion 1 includes a first bottom wall 1a, and side walls 1c extend from the first bottom wall opposite to each other. A first hole 1b for the pin 3 is formed in the side wall 1c.

[0053] In contrast, in a preferred embodiment, the second hinge portion 2 is L-shaped and also includes sidewalls 2c extending on opposite sides relative to the second bottom wall 2a. A hole 2b for the pin 3 is formed in the sidewall 2c. When the second hinge portion 2 is connected to the first hinge portion 1, the holes 1b and 2b are coaxial with each other and accommodate the pin 3.

[0054] In particular, such as Figure 4B As better shown in the diagram, the second adjacent portion is formed by two shoulders 7 and 8 respectively formed on the first hinge portion 1 and the second hinge portion 2. Figure 3A As better illustrated, in the first stable position A1, shoulders 7 and 8 are spaced apart from each other, thereby allowing further relative rotation between hinge portions 1 and 2. When rotating about the pin, shoulder 8 reaches a second angle a2, abutting against shoulder 7 of the first hinge portion, thereby effectively preventing rotation and defining the second stable position A2 of the saddle 102, as shown below. Figure 4B and 5B As shown in the image.

[0055] The operation of opening the saddle 102 via the hinge 10 according to the invention allows for two possible positions of the saddle 102. In the first open position, the saddle 102 is opened at a first angle α1 and maintains a first stable position A1. Figure 4The first position A1 is advantageous because the saddle 102 can also be opened while the handlebars 107 are in a rotating configuration with effective steering lock. In this position, the handlebars 107 are rotated approximately 45° relative to the straight position. In this case, in the first open position A1, the saddle 102 does not interfere with the handlebars 107, and the opening of the saddle 102 and access to the storage compartment 105 are still possible. From this position, the saddle 102 can be further rotated in the opening direction T1. See also Figure 5B Further rotation brings the saddle 102 to a second stable position A2. In the second position A2, a complete passageway to the storage compartment 105 is formed, wherein the saddle 102 is preferably rotated beyond the vertical direction.

[0056] The above represent exemplary embodiments. The following exemplary embodiments also pertain to this invention.

[0057] Example 1. A saddle hinge (10) for a saddle-mounted riding vehicle (100), the saddle hinge (10) comprising:

[0058] The first hinge portion (1) is configured to be connected to the saddle lower body (101) of the saddle riding vehicle (100).

[0059] A second hinge portion (2) is configured to connect to a saddle (102) of the saddle-riding vehicle (100); wherein the first hinge portion (1) and the second hinge portion (2) are pivotally connected to each other about a pin (3) having a hinge axis (AA).

[0060] At least one elastic element (4) is disposed between the first hinge portion (1) and the second hinge portion (2) and is configured to guide relative rotation between the second hinge portion (2) and the first hinge portion (1) about the hinge axis (AA) along the opening direction (T1) of the saddle (102).

[0061] The first adjacent portion (5) is formed on the first and / or second hinge portion and is shaped to be adjacent to the elastic element (4, 4') to define a first stable opening position (A1) of the saddle (102) having a first opening angle (a1).

[0062] The saddle hinge (10) further includes:

[0063] The second adjacent portion (7, 8) is formed on the first and / or second hinge portion and is offset at an angle from the first adjacent portion (5) to define a second stable opening position (A2), the second stable opening position (A2) having a second opening angle (a2) greater than the first opening angle (a1).

[0064] Example 2. According to the saddle hinge (10) of Example 1, wherein the first abutment portion (5) is formed on the first hinge portion (1) and includes an abutment wall (5') defining a shoulder portion, wherein when the first opening angle (a1) is reached, the elastic element (4, 4') rests stably on the shoulder portion, thereby stably holding the saddle (102) in the first opening position (A1).

[0065] Example 3. A saddle hinge (10) according to Example 1 or 2, wherein the second abutment portion is formed on the first hinge portion (1) and the second hinge portion (2) and includes corresponding shoulders (7, 8) that abut each other when the second opening angle (a2) is reached, thereby holding the saddle (102) in the second stable opening position (A2).

[0066] Example 4. A saddle hinge (10) according to any one of Examples 1 to 3, wherein the first opening angle (a1) is less than 90°, particularly between 70° and 80°.

[0067] Example 5. A saddle hinge (10) according to any one of Examples 1 to 4, wherein the second opening angle (a2) is between 75° and 110°, particularly between 80° and 100°.

[0068] Example 6. A saddle hinge (10) according to any one of Examples 1 to 5, wherein the elastic element (4) is a torsion spring, the torsion spring is mounted on the pin (3) and includes an abutment portion (4') that contacts the second hinge portion (2) and generates an elastic torque that facilitates the relative rotation of the second hinge portion (2) relative to the first hinge portion (1) in the opening direction (T1) of the saddle (102).

[0069] Example 7. The saddle hinge (10) according to Example 6, wherein the abutting portion (4') contacts the second hinge portion (2) until the first opening angle (a1) is reached, and is spaced apart from the second hinge portion (2) when rotating beyond the first opening angle (a1).

[0070] Example 8. A saddle hinge (10) according to any one of Examples 2 to 7, wherein the first hinge portion (1) includes a first bottom wall (1a) adapted to be fixed to the lower body (101) of the saddle, and wherein the adjacent wall (5') extends from the first bottom wall (1a) defining an "L" shape, the first adjacent wall (5') extending obliquely from the first bottom wall (1a) defining an adjacent angle (b1).

[0071] Example 9. A saddle hinge (10) according to any one of Examples 6 to 8, wherein the second hinge portion (1) includes a second bottom wall (2a) adapted to be fixed to the saddle (102), wherein an abutment wall (6) is provided extending from the second bottom wall (2a) defining an “L” shape, the abutment wall (6) extending obliquely from the second bottom wall (2a) defining an abutment angle (b2), wherein the abutment portion (4') of the torsion spring (4) rests on the abutment wall (6).

[0072] Example 10. A saddle-riding vehicle comprising at least one front steering wheel (103) and a driving rear wheel (104), a saddle underbody (101) defining a storage compartment (105), and a saddle (102) rotatably arranged in relation to the saddle underbody (101) via a saddle hinge (10) according to any one of Examples 1 to 9.

Claims

1. A saddle hinge (10) for a saddle-mounted riding vehicle (100), the saddle hinge (10) comprising: The first hinge portion (1) is configured to be connected to the saddle lower body (101) of the saddle riding vehicle (100). A second hinge portion (2) is configured to connect to a saddle (102) of the saddle-riding vehicle (100); wherein the first hinge portion (1) and the second hinge portion (2) are pivotally connected to each other about a pin (3) having a hinge axis (AA). At least one elastic element (4) is disposed between the first hinge portion (1) and the second hinge portion (2) and is shaped to guide relative rotation between the second hinge portion (2) and the first hinge portion (1) about the hinge axis (AA) along the opening direction (T1) of the saddle (102). The first adjacent portion (5) is formed on the first and / or second hinge portion and is shaped to be adjacent to the elastic element (4, 4') to define a first stable opening position (A1) of the saddle (102) having a first opening angle (a1). The saddle hinge (10) further includes: The second adjacent portion (7, 8), formed on the first and / or second hinge portion, is angularly offset from the first adjacent portion (5) to define a second stable opening position (A2), the second stable opening position (A2) having a second opening angle (a2) greater than the first opening angle (a1); and The first adjacent portion (5) is formed on the first hinge portion (1) and includes an adjacent wall (5') that defines a shoulder. When the first opening angle (a1) is reached, the elastic element (4, 4') rests stably on the shoulder, thereby stably holding the saddle (102) in the first stable opening position (A1).

2. The saddle hinge (10) according to claim 1, wherein, The second adjacent portion is formed on the first hinge portion (1) and the second hinge portion (2) and includes corresponding shoulders (7, 8). When the second opening angle (a2) is reached, the shoulders (7, 8) are adjacent to each other, thereby holding the saddle (102) in the second stable opening position (A2).

3. The saddle hinge (10) according to claim 1 or 2, wherein, The first opening angle (a1) is less than 90°, and in particular, is between 70° and 80°.

4. The saddle hinge (10) according to any one of claims 1 to 3, wherein, The second opening angle (a2) is between 75° and 110°, and particularly between 80° and 100°.

5. The saddle hinge (10) according to any one of claims 1 to 4, wherein, The elastic element (4) is a torsion spring, which is mounted on the pin (3) and includes an abutment portion (4'). The abutment portion (4') contacts the second hinge portion (2) and generates an elastic torque that facilitates the relative rotation of the second hinge portion (2) relative to the first hinge portion (1) along the opening direction (T1) of the saddle (102).

6. The saddle hinge (10) according to claim 5, wherein, The abutting portion (4') contacts the second hinge portion (2) until the first opening angle (a1) is reached, and is spaced apart from the second hinge portion (2) when it rotates beyond the first opening angle (a1).

7. The saddle hinge (10) according to any one of the preceding claims, wherein, The first hinge portion (1) includes a first bottom wall (1a) adapted to be fixed to the saddle lower body (101), wherein the adjacent wall (5') extends from the first bottom wall (1a) defining an "L" shape, and the first adjacent wall (5') extends obliquely from the first bottom wall (1a) defining an adjacent angle (b1).

8. The saddle hinge (10) according to any one of claims 5 to 7, wherein, The second hinge portion (1) includes a second bottom wall (2a) adapted to be fixed to the saddle (102), wherein an abutment wall (6) is provided, the abutment wall (6) extending from the second bottom wall (2a) defining an "L" shape, the abutment wall (6) extending obliquely from the second bottom wall (2a) defining an abutment angle (b2), wherein the abutment portion (4') of the torsion spring (4) rests on the abutment wall (6).

9. A saddle-mounted vehicle comprising at least one front steering wheel (103) and a driving rear wheel (104), a saddle lower body (101) defining a storage compartment (105), and a saddle (102) rotatably arranged in relation to the saddle lower body (101) via a saddle hinge (10) according to any one of claims 1 to 8.

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