An adjustable backrest for a motorcycle saddle

Abstract

The utility model discloses a motorcycle trunk with adjustable backrest relates to motorcycle trunk field, including box, fixed plate, telescopic link and backrest, the box includes apron, first pivot, storage groove and mounting hole. The utility model discloses a storage groove reserved by the aid of box can completely store backrest with telescopic link, and when storing or taking out backrest, the apron of box can normally open and close through first pivot, ensure that trunk storage function and backrest support function can use simultaneously, do not interfere with each other, and backrest has flexible adjustment capacity, and length adjustment is realized to backrest through the rotation adjustment of second pivot, nested structure cooperation clamping hole, limit hole and support, and the angle adjustment of third pivot, can be adapted to different positions and angles according to the demand of rider, in addition, the structure of backrest meets the ergonomics, can effectively provide the waist support for rider, relieves the waist fatigue when riding, and guarantees the health of waist.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle trunks, specifically a motorcycle trunk with an adjustable backrest. Background Technology

[0002] Motorcycle trunks are a common accessory for motorcycles, primarily used to carry items and provide convenience for drivers. Currently, motorcycle trunks on the market come in a wide variety of sizes, shapes, and appearances to meet most of the needs of motorcycle drivers. As the concepts of humanization and health become increasingly popular, consumers are paying more attention not only to the practicality of a product but also to its aesthetics and health attributes.

[0003] Motorcycle riders often need to maintain a forward-leaning posture while riding, which can easily lead to lower back fatigue and is detrimental to lower back health in the long run. In this case, using a motorcycle backrest can effectively alleviate this problem. Some motorcycle backrests are built into the motorcycle and are not very effective, while others need to be installed separately. These backrests provide better support, but they may conflict with the installation position in the trunk. Summary of the Invention

[0004] Therefore, the purpose of this utility model is to provide an adjustable backrest motorcycle trunk to solve the technical problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an adjustable backrest motorcycle trunk, comprising a trunk body, a fixing plate, a telescopic rod, and a backrest;

[0006] The housing includes a cover plate, a first rotating shaft, a storage slot and mounting holes. The housing is connected to a fixed plate through the mounting holes. The cover plate is rotatably connected to the housing through the first rotating shaft to achieve opening and closing. The storage slot is located at the rear of the housing and is used to store the backrest and telescopic rod.

[0007] The storage space inside the cabinet is equipped with a removable partition, which is connected to the side wall of the cabinet through a slot to achieve storage space partitioning;

[0008] The edge of the lid of the box is equipped with a sealing strip, which is made of EPDM rubber to enhance the sealing of the storage space of the box.

[0009] The fixing plate includes a through hole, which is fixedly connected to the rear frame of the motorcycle through the through hole, and at the same time, it cooperates with the mounting holes of the box body to provide an installation position for the box body and the telescopic rod.

[0010] The inner wall of the through hole of the fixing plate is provided with a metal bushing, which is made of brass and is used to prevent the through hole from being worn due to long-term vibration.

[0011] The telescopic rod includes a second rotating shaft, a locking hole, a limiting hole, and a bracket. The telescopic rod is mounted on a fixed plate via the second rotating shaft and can rotate. The telescopic rod has a nested structure. The length is adjusted and fixed by the locking hole, the limiting hole, and the bracket. The bracket is supported on the motorcycle seat to fix the telescopic rod.

[0012] Both the outer and inner poles of the telescopic pole are made of high-strength aluminum alloy and are coated with epoxy resin powder for corrosion resistance and wear resistance, with a coating thickness of 50-80μm.

[0013] A return spring is provided at the hinge point between the support and the outer rod of the telescopic rod. One end of the return spring is fixed to the side wall of the support, and the other end is fixed to the side wall of the outer rod to assist the support in resetting.

[0014] The backrest includes a third pivot, which is connected to a telescopic rod and can be adjusted in angle. The backrest has an ergonomic structure to provide lumbar support for motorcyclists. A rubber sealing ring damping element is provided at the third pivot to keep the backrest stable at the adjusted angle and prevent vibration and displacement.

[0015] The backrest has a padded layer on the side facing the waist, which is made of high-density sponge to enhance support and comfort.

[0016] In summary, the present invention has the following main advantages:

[0017] This invention utilizes a pre-drilled storage slot in the housing to completely retract the backrest and telescopic rod. When retracting or removing the backrest, the housing cover can be opened and closed normally via the first pivot, ensuring that the storage function of the trunk and the backrest support function can be used simultaneously without interference. The backrest is flexibly adjustable, with rotational adjustment via the second pivot, length adjustment via a nested structure with locking holes, limiting holes, and brackets, and angle adjustment via the third pivot. This allows for adaptation to different positions and angles according to the rider's needs. Furthermore, the ergonomic structure of the backrest effectively provides lumbar support, alleviating lumbar fatigue and protecting lumbar health. The overall structure is simple and easy to install; the housing and telescopic rod can be stably installed on the motorcycle through the through-holes in the fixing plate without complicated operations. Simultaneously, the retracted backrest and telescopic rod do not occupy extra space on the motorcycle, balancing practicality and space utilization, and improving the comfort and convenience of motorcycle riding. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the cover plate of this utility model in the open state;

[0020] Figure 3 This is a partial structural schematic diagram of the present invention.

[0021] In the picture:

[0022] 1. Box body; 10. Cover plate; 11. First pivot; 12. Storage slot; 13. Mounting hole;

[0023] 2. Fixing plate; 20. Through hole;

[0024] 3. Telescopic rod; 30. Second pivot; 31. Locking hole; 32. Limiting hole; 33. Bracket;

[0025] 4. Backrest; 40. Third pivot. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0027] The embodiments of this utility model will be described below based on its overall structure.

[0028] Implementation, for example Figure 1-3 As shown, the adjustable backrest motorcycle trunk provided in this embodiment is suitable for common motorcycles on the market. Its core consists of a trunk body 1, a fixing plate 2, a telescopic rod 3, and a backrest 4. The specific structure and assembly relationship of each component are as follows:

[0029] The box body 1 is made of engineering plastic in one piece, with a regular box-shaped structure and rounded corners to avoid scratches during riding. The box body 1 is equipped with a cover plate 10, the outer dimensions of which are perfectly matched with the top opening of the box body 1. The cover plate 10 is rotatably connected to the rear edge of the box body 1 through a first pivot 11. By controlling the rotation angle of the first pivot 11, the opening and closing operation of the cover plate 10 can be realized to meet the user's needs for taking out and putting in items inside the box body 1.

[0030] A storage slot 12 is provided on the side of the box 1 away from the storage space, i.e., the rear. The shape of the storage slot 12 is adapted to the overall shape of the backrest 4 and the telescopic rod 3 in the stored state, ensuring that both can be fully embedded in the slot. A mounting hole 13 is provided at the bottom of the box 1. The mounting hole 13 is used to establish a connection with the fixing plate 2 to fix the box 1.

[0031] The fixing plate 2 is made of metal sheet and the surface is treated with anti-rust to improve its service life. Through holes 20 are opened through the fixing plate 2. The through holes 20 are divided into two groups: one group of through holes 20 is connected to the motorcycle rear rack through fasteners to fix the entire trunk to the motorcycle; the other group of through holes 20 corresponds to the mounting holes 13 at the bottom of the box body 1, and the box body 1 and the fixing plate 2 are detachably connected through fasteners; at the same time, the top of the fixing plate 2 is reserved for the connection structure for installing the telescopic rod 3, providing a stable installation base for the telescopic rod 3.

[0032] The telescopic rod 3 adopts a nested structure, consisting of an outer rod and an inner rod. One end of the outer rod is rotatably connected to the top of the fixed plate 2 via a second rotating shaft 30. The angle between the telescopic rod 3 and the fixed plate 2 can be adjusted by rotating the second rotating shaft 30. The inner rod can slide along the axial direction of the outer rod, thereby changing the overall length of the telescopic rod 3. The inner rod has slotted holes 31 at intervals on its side wall, and the outer rod has limiting holes 32 on its side wall near the top. The telescopic rod 3 is also equipped with a bracket 33. One end of the bracket 33 is hinged to the side wall of the outer rod. When the inner rod slides to the target length, the other end of the bracket 33 can simultaneously engage with the corresponding slotted holes 31 and limiting holes 32 to form a mechanical locking structure, fixing the length of the telescopic rod 3. The bottom of the bracket 33 is also equipped with an anti-slip structure adapted to the surface of the motorcycle seat to prevent the telescopic rod 3 from sliding when supported.

[0033] The backrest 4 includes an arc-shaped support body. The curvature of the arc-shaped support body is designed according to the physiological curve of the human waist to ensure that it fits the rider's waist. The backrest 4 is rotatably connected to the end of the inner rod of the telescopic rod 3 away from the outer rod through a third pivot 40. By rotating the third pivot 40, the angle of the backrest 4 can be adjusted to adapt to the lumbar support needs of different riders. A soft padding layer is set on the side of the arc-shaped support body facing the human waist. The soft padding layer is made of a soft and elastic material to improve the rider's lumbar support comfort.

[0034] Assembly and usage process

[0035] Assembly Operation: First, connect the fixing plate 2 to the motorcycle rear rack through a set of through holes 20, and use fasteners to firmly fix the fixing plate 2 to the motorcycle rear rack; then align the mounting holes 13 at the bottom of the box 1 with another set of through holes 20 on the fixing plate 2, and fix the box 1 to the fixing plate 2 with fasteners; finally, hinge the outer rod of the telescopic rod 3 to the connecting structure at the top of the fixing plate 2 through the second pivot 30 to complete the installation of the telescopic rod 3; then connect the backrest 4 to the inner rod of the telescopic rod 3 through the third pivot 40, thus completing the assembly of the entire trunk.

[0036] Backrest 4 Adjustment: When the rider needs to use the backrest 4, first rotate the second pivot 30 to adjust the angle between the telescopic rod 3 and the fixed plate 2, so that the telescopic rod 3 is in a vertical or inclined support state; then pull the inner rod to slide the inner rod along the outer rod axis, adjusting the overall length of the telescopic rod 3 until the backrest 4 reaches the height corresponding to the rider's waist; then rotate the bracket 33 so that one end of the bracket 33 is engaged with the current position of the locking hole 31 and the limiting hole 32, fixing the length of the telescopic rod 3; finally, rotate the third pivot 40 to adjust the angle of the backrest 4 so that the arc-shaped support body of the backrest 4 fits tightly against the rider's waist, completing the adjustment of the backrest 4.

[0037] Backrest 4 storage operation: When the backrest 4 is not in use, first rotate the bracket 33 to disengage the bracket 33 from the locking hole 31 and the limiting hole 32, thereby releasing the length lock of the telescopic rod 3; then push the inner rod to retract the inner rod into the outer rod, shortening the overall length of the telescopic rod 3; then rotate the second rotating shaft 30 to rotate the telescopic rod 3 toward the storage slot 12 at the rear of the box 1, so that the backrest 4 and the telescopic rod 3 are embedded into the storage slot 12, completing the storage of the backrest 4. At this time, the normal storage function of the box 1 and the motorcycle's riding passability are not affected.

[0038] Implementation Example Optimization Design

[0039] Optimization of the through hole 20 of the fixing plate 2: A metal bushing is provided on the inner wall of the through hole 20 of the fixing plate 2. The metal bushing is made of brass and works in conjunction with the fastener to prevent the through hole 20 from being worn due to vibrations generated by long-term riding of the motorcycle, thus extending the service life of the fixing plate 2.

[0040] Material and protection optimization of telescopic pole 3: Both the outer and inner poles of telescopic pole 3 are made of high-strength aluminum alloy, and the surface is coated with an anti-corrosion and wear-resistant coating. The coating is an epoxy resin powder coating, which can improve the weather resistance and wear resistance of telescopic pole 3 and adapt to different riding environments.

[0041] Optimization of the sealing performance of the cabinet 1: A sealing strip is set on the edge of the cover plate 10 of the cabinet 1. The sealing strip is made of EPDM rubber. When the cover plate 10 is closed, the sealing strip is tightly attached to the edge of the cabinet 1, which can prevent rainwater and dust from entering the storage space of the cabinet 1 and protect the internal items.

[0042] Backrest 4 angle stability optimization: A damping element is set at the third pivot 40. The damping element is a rubber sealing ring. The rubber sealing ring is sleeved on the outside of the third pivot 40 to provide damping force for the angle adjustment of the backrest 4, so that the backrest 4 can be stably stopped at any adjustment angle, and avoid the backrest 4 angle deviation caused by vibration during riding.

[0043] Storage space optimization of box 1: Removable partitions are installed inside the storage space of box 1. The partitions are connected to the side wall of box 1 through slots. Users can adjust the position of the partitions according to their storage needs to divide the storage space into different areas for easy classification and storage of items.

[0044] The ease of operation of the bracket 33 is optimized: a return spring is set at the hinge between the bracket 33 and the outer rod of the telescopic rod 3. One end of the return spring is fixed to the side wall of the bracket 33 and the other end is fixed to the side wall of the outer rod. When it is necessary to adjust the length of the telescopic rod 3, after pressing the bracket 33 to disengage from the locking hole 31 and the limiting hole 32, the return spring can drive the bracket 33 to automatically return to the initial position, simplifying the operation steps.

[0045] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A motorcycle trunk with an adjustable backrest, characterized in that, Includes the box body (1), the fixing plate (2), the telescopic rod (3) and the backrest (4); The housing (1) includes a cover plate (10), a first rotating shaft (11), a storage slot (12) and a mounting hole (13). The housing (1) is connected to the fixing plate (2) through the mounting hole (13). The cover plate (10) is rotatably connected to the housing (1) through the first rotating shaft (11) to realize opening and closing. The storage slot (12) is located at the rear of the housing (1) and is used to store the backrest (4) and the telescopic rod (3). The fixing plate (2) includes a through hole (20), which is fixedly connected to the rear frame of the motorcycle through the through hole (20). At the same time, the through hole (20) cooperates with the mounting hole (13) of the box (1) to provide an installation position for the box (1) and the telescopic rod (3). The telescopic rod (3) includes a second rotating shaft (30), a locking hole (31), a limiting hole (32), and a bracket (33). The telescopic rod (3) is mounted on the fixed plate (2) via the second rotating shaft (30) and can rotate. The telescopic rod (3) has a nested structure. The length is adjusted and fixed by the locking hole (31), the limiting hole (32), and the bracket (33). The bracket (33) is supported on the motorcycle seat to fix the telescopic rod (3). The backrest (4) includes a third pivot (40), which is connected to the telescopic rod (3) and the angle is adjustable. The backrest (4) has an ergonomic structure and is used to provide lumbar support for motorcyclists.

2. The motorcycle trunk with adjustable backrest according to claim 1, characterized in that: The inner wall of the through hole (20) of the fixing plate (2) is provided with a metal bushing. The bushing is made of brass and is used to prevent the through hole (20) from being worn due to long-term vibration.

3. The motorcycle trunk with adjustable backrest according to claim 1, characterized in that: The outer and inner rods of the telescopic rod (3) are both made of high-strength aluminum alloy and are coated with epoxy resin powder for corrosion resistance and wear resistance. The coating thickness is 50-80μm.

4. The motorcycle trunk with adjustable backrest according to claim 1, characterized in that: The backrest (4) has a padded layer on the side facing the waist of the human body. The padded layer is made of high-density sponge material to improve support comfort.

5. The motorcycle trunk with adjustable backrest according to claim 1, characterized in that: The edge of the cover plate (10) of the box (1) is provided with a sealing strip. The sealing strip is made of EPDM rubber and is used to enhance the sealing of the storage space of the box (1).

6. The motorcycle trunk with adjustable backrest according to claim 1, characterized in that: A rubber sealing ring damping element is provided at the third pivot (40) to keep the backrest (4) stable at the adjustment angle and avoid vibration and deviation.

7. The motorcycle trunk with adjustable backrest according to claim 1, characterized in that: The storage space inside the box (1) is provided with a detachable partition. The partition is connected to the side wall of the box (1) through a slot to realize the partitioning of the storage space.

8. The motorcycle trunk with adjustable backrest according to claim 1, characterized in that: A return spring is provided at the hinge point between the support (33) of the telescopic rod (3) and the outer rod. One end of the return spring is fixed to the side wall of the support (33), and the other end is fixed to the side wall of the outer rod, which is used to assist the support (33) in resetting.

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