A friction direct-drive type reel portable reader and a reading driving method thereof

Abstract

The application discloses a friction direct-drive type reel portable reader and a reading driving method thereof, and belongs to the technical field of reading appliances. The reader comprises a shell, a reading window, a first reel, a second reel, a flexible reading carrier, a backing plate and two groups of constant force tensioning assemblies. The first reel and the second reel are rotationally arranged in parallel inside the shell, the flexible reading carrier is fixed at both ends and wound around the two reels, and the middle section is exposed from the reading window to form an exposed reading surface. The two groups of constant force tensioning assemblies are correspondingly arranged at the ends of the two reels, continuously apply a winding torque to the reels, and make the flexible reading carrier tightly and closely adhere to the backing plate in a bidirectional manner. The driving method directly drives the flexible carrier to translate by friction on the exposed reading surface, and the reels are driven to complete winding and unwinding. The application changes the transmission mode of the traditional reel structure, i.e., the transmission mode of driving the carrier to move by the reel, replicates the touch screen sliding operation habit, does not need electric control in a pure physical structure, keeps the carrier tensioned and flat in the whole process, and is suitable for various light reading scenes.

Description

Technical Field

[0001] This invention relates to the field of reading device technology, and in particular to a purely physical sliding portable scroll reader and its driving method. Background Technology

[0002] Currently, mainstream reading media can be divided into three categories: traditional page-turning paper books, e-ink readers, and mobile e-readers. While vertical scrolling on mobile phones aligns with modern muscle memory habits, it suffers from blue light fatigue, pop-up notifications, and distraction. E-ink readers require built-in power supplies and electronic components, resulting in high manufacturing costs, and they still fall under the category of electronic devices. Traditional scroll-style books, often requiring two hands to unfold, do not conform to the habit of single-handed vertical scrolling, leading to high learning curves in the interactive experience.

[0003] Existing roll-type reading products generally use a side knob, hand crank mechanism, or motor to drive the roll to rotate, which in turn moves the flexible carrier, following the "roll-carrying paper" driving logic. The interaction method of this type of solution is very different from the swiping of a mobile phone touch screen, and in order to achieve synchronous roll-up and unrolling, they often use forced transmission structures such as gears and timing belts. As the roll diameter changes dynamically, problems such as carrier loosening, wrinkles, and belt jamming can easily occur, making it impossible to guarantee a smooth and flat reading surface throughout the entire process.

[0004] Existing scroll-type reading devices generally adopt a scroll-driven transmission mode, and there are few designs that use the reading medium itself as a power input component. As a result, physical reading devices are difficult to adapt to the touch screen swiping muscle memory that modern users have formed, and there is a significant technological gap in the interactive experience of purely physical lightweight reading devices.

[0005] Therefore, there is an urgent need to design a scroll-type portable reader and its driving method that replicates the interaction logic of mobile phone rubbing and sliding screen, has a purely physical structure, and automatically tensions the carrier throughout the process, to fill the gap in existing technology. Summary of the Invention

[0006] (1) Technical problems to be solved

[0007] 1. Existing scroll-style reading materials rely on knobs and motors to actively drive the scroll, and the interaction method does not conform to the modern touch screen swiping operation habits, resulting in a poor one-handed operation experience;

[0008] 2. The winding structure using forced synchronous drive dynamically changes with the diameter of the winding shaft, making the flexible carrier prone to loosening and wrinkling, resulting in poor belt smoothness;

[0009] 3. Conventional solutions in this field mostly adopt a "shaft-driven carrier" transmission mode, lacking a carrier-direct-drive interactive form, and the interaction mode of purely physical reading devices is singular;

[0010] 4. Due to its complex structure and numerous parts, it lacks portability and reliability, making it unsuitable for fragmented, light reading scenarios.

[0011] (2) Technical solution

[0012] To achieve the above objectives, the present invention adopts the following technical solution:

[0013] A friction-driven direct-drive scroll portable reader includes a housing with a vertical reading window on the front. A first scroll and a second scroll are rotatably mounted parallel to each other inside the housing. A flexible reading medium is fixed at both ends and wound around the two scrolls, with its middle section exposed above the reading window, forming an exposed reading surface. A liner is fixed inside the housing and adheres to the back of the exposed reading surface, providing flat support for the sliding of the medium. Each of the two scrolls is equipped with a set of constant-force tensioning components, which continuously apply an inward winding torque to the corresponding scrolls, keeping the flexible reading medium taut and against the liner in the corresponding area of ​​the reading window.

[0014] When the exposed reading surface is subjected to frictional force, it can drive the flexible reading medium to move in both directions; the first and second scrolls rotate passively as the medium moves, respectively completing the unwinding and rewinding actions.

[0015] Furthermore, the constant force tensioning component is a constant torque elastic winding component, which can adopt various structures such as constant force spring, spiral spring, and elastic torsion component. One end of it is linked to the winding shaft, and the other end is relatively fixed to the housing, continuously applying an approximately constant winding torque to the corresponding winding shaft. After the winding torque acts on the winding shaft, it is converted into the recovery pull force of the flexible reading medium. The two sets of constant torque elastic winding components work independently, and can provide a relatively stable recovery pull force within the effective stroke of the winding shaft diameter change, jointly maintaining the bidirectional tension state of the flexible reading medium.

[0016] Furthermore, the reader is equipped with a damping positioning component, which can adopt various forms such as shaft end friction damping and carrier surface pressing damping. By increasing the rotational resistance of the scroll or the sliding resistance of the carrier, the exposed reading surface can be stably kept in the current position after the finger is released, without rebound or movement.

[0017] Furthermore, the flexible reading medium is selected from at least one of plastic film, synthetic paper, thin paper, and composite flexible sheet; text and patterns can be printed on one or both sides of the medium, printing on the side away from finger friction can improve wear resistance, and printing on the contact side can simplify the printing process; the medium can also be set to a blank state for users to print or write on themselves.

[0018] Furthermore, the supporting working surface of the liner can be set as a flat or slightly curved surface to ensure that the flexible reading medium fits flat; limiting edges are set on both sides of the reading window, or annular limiting bosses are set at both ends of the scroll to restrict the lateral displacement of the flexible reading medium and ensure the alignment of the tape.

[0019] The present invention also provides a friction direct-drive reading method for a scroll reader, comprising the following steps:

[0020] Step 1: Wind the flexible reading medium around the two ends of two parallel spools respectively. Apply a winding torque to the two spools through two sets of constant force tensioning components to make the middle section of the flexible reading medium bidirectionally tensioned and attached to the backing plate, forming an exposed reading surface.

[0021] Step 2: Apply a frictional force along the direction of the flexible reading carrier's belt to the exposed reading surface, directly causing the flexible reading carrier to translate.

[0022] Step 3: The two scrolls passively rotate as the flexible reading medium moves, corresponding to the unwinding and rewinding actions, thus achieving continuous displacement of the reading content.

[0023] Furthermore, by increasing the rotational resistance of the scroll or the sliding resistance of the flexible reading medium through the damping positioning component, the flexible reading medium remains in its current position after the frictional force disappears, thus achieving positioning upon release.

[0024] (3) Beneficial effects

[0025] 1. Innovative driving logic and interactive design that aligns with contemporary habits: Abandoning the traditional mode of actively driving the scroll, this design uses friction acting on the reading surface as the power input and adopts a transmission method where the flexible reading medium acts as the power input to drive the scroll (referred to as the "paper tape axis" logic). This achieves direct-drive sliding interaction of the physical flexible medium, which is different from the conventional "axis-driven medium" transmission mode in this field. It perfectly replicates the muscle memory of vertical scrolling reading on a mobile phone, can be operated with one hand, and has a low learning cost.

[0026] 2. Independent tensioning in both directions, smooth and wrinkle-free throughout: Each of the two rollers is independently equipped with a constant force tensioning component. The two sets of components can adapt to changes in the roller diameter and continuously provide recovery tension without the need for a forced synchronous transmission structure. The difference in recovery tension on both sides can be borne by the system's static friction or damping positioning components. The reading surface is taut and flat throughout, without looseness, wrinkles, or jamming. This structural improvement addresses the problem of uneven belt movement in traditional rollers.

[0027] 3. Purely physical minimalist structure, high reliability and strong portability: No electronic components, no gear synchronization mechanism, fewer parts, low failure rate, the whole can be made into the size of a mobile phone, easy to carry around; no blue light, no pop-up interference, suitable for eye protection reading and fragmented light reading scenarios.

[0028] 4. Narrow reading window reduces eye strain: The fixed-width reading window naturally limits the line width, and the number of words per line is adapted to the comfortable reading range of the human eye. The visual fatigue during long-term reading is lower than that of large-format paper books.

[0029] 5. Dual-dimensional protection of product and method: It protects both the product structure and the driving method, providing more comprehensive protection, effectively covering circumvention designs, and making the patent barrier more solid. Attached Figure Description

[0030] Figure 1 This is an isometric schematic diagram of the internal structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the overall appearance and packaging of the present invention;

[0032] Figure 3 This is a schematic longitudinal cross-sectional view of the present invention;

[0033] The numbers in the diagram are: 1-shell, 2-first scroll, 3-second scroll, 4-flexible reading medium, 5-liner, 6-outer panel, 7-constant force tensioning assembly, 8-damping positioning assembly. Detailed Implementation

[0034] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0035] like Figure 1 , Figure 2 , Figure 3 As shown in the figure, the friction direct-drive scroll portable reader described in this embodiment includes a housing 1, a first scroll 2, a second scroll 3, a flexible reading carrier 4, a liner 5, an outer panel 6, two sets of constant force tensioning components 7, and a damping positioning component 8.

[0036] The housing 1 is a rectangular thin-box structure with a vertically narrow reading window on the front. The first scroll 2 and the second scroll 3 are arranged parallel to each other vertically, and their ends are rotatably assembled to the upper and lower ends inside the housing 1 through shaft holes. The upper end of the flexible reading carrier 4 is fixed and wound around the first scroll 2, and the lower end is fixed and wound around the second scroll 3. The straight section in the middle of the carrier faces the reading window, forming an exposed reading surface. The liner 5 is a smooth, rigid flat plate, fixed to the inside of the housing 1 and attached to the back of the flexible reading carrier 4, providing rigid support for the carrier's sliding and ensuring a flat reading surface. The supporting working surface of the liner 5 can be a flat surface or a slightly convex arc surface in the middle, making the flexible reading carrier 4 fit the liner surface better and improving the smoothness of the conveyor belt.

[0037] Two sets of constant force tensioning components 7 are independently assembled on the shaft ends of the first spool 2 and the second spool 3, respectively. In this embodiment, the constant force tensioning component 7 adopts a constant force spring, with the inner end of the spring fixed to the spool core and the outer end fixed to the positioning post of the housing 1. The two sets of springs are pre-wound with a set pre-tension amount and continuously apply an approximately constant winding torque to the corresponding spool. The torque is converted into an inward retraction force of the flexible reading carrier through the spool, so that the flexible reading carrier 4 is always stretched in both directions and pressed against the liner 5.

[0038] The damping positioning component 8 is set at the end of the spool. In this embodiment, a silicone damping ring is sleeved on the end of the spool as a damping friction element to increase the static damping of the spool rotation, so that the carrier can stably stay at the current position after the finger is released, achieving the positioning effect of stopping as soon as the finger is released.

[0039] In this embodiment, the flexible reading carrier 4 is made of PET film, and the text and pattern are printed in reverse on the back of the film (the side facing the backing plate). The front of the film that the finger touches is a smooth and wear-resistant substrate, and the ink will not be worn off by long-term sliding. In a low-cost embodiment, the text and pattern can also be printed directly on the front of the carrier, simplifying the production process. The carrier can also be set to a blank state without text or images, for users to use for subsequent printing and hand-drawing.

[0040] Limiting edges are provided on both sides of the reading window of the housing 1 to restrict the lateral displacement of the flexible reading carrier 4 and ensure the alignment of the conveyor belt; annular bosses can also be provided at both ends of the scroll to achieve the same limiting effect.

[0041] The reading-driven method and its working process in this embodiment are as follows:

[0042] In the static state, the recovery pull of the two sets of constant force springs and the static friction of the damping components together form a force balance, and the flexible reading carrier 4 is stretched and flat in both directions, and stays stably in the current position; the recovery pull on both sides does not need to be completely equal, and the difference is borne by the static friction.

[0043] When sliding downwards, the finger rubs against the exposed reading surface, applying a downward driving force to overcome the corresponding retraction force of the upper spring, causing the first scroll 2 to rotate in the opposite direction to unwind; at the same time, the lower spring continuously applies a winding force, causing the second scroll 3 to rotate in the forward direction, synchronously winding up the carrier released at the upper end, keeping the carrier taut and flat throughout the process.

[0044] When sliding upwards, the movement logic is symmetrical. The upward friction of the finger overcomes the corresponding retraction pull of the lower spring, causing the second roller 3 to rotate in the opposite direction to unwind. At the same time, the upper spring continuously applies the winding force, causing the first roller 2 to rotate in the forward direction, synchronously winding up the carrier released at the lower end. The carrier is also taut throughout the entire process.

[0045] The entire swipe can be completed by simply rubbing the reading surface with your finger to achieve bidirectional reading displacement. The interaction logic is exactly the same as that of swiping on a mobile phone touch screen. The scroll passively rotates with the carrier throughout the entire process, without the need for an additional active driving mechanism.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A friction-driven direct-drive scroll portable reader, characterized in that, include: The system comprises: a housing with a reading window for an exposed reading area; a first and a second reel, which are rotatably mounted inside the housing; a flexible reading medium, with its two ends fixed and wound around the first and second reels, the middle section of which protrudes from the reading window to form an exposed reading surface; a liner fixed inside the housing and attached to the back of the exposed reading surface; and two sets of constant-force tensioning components, respectively mounted on the first and second reels. These components continuously apply a winding torque to the first and second reels, keeping the flexible reading medium taut in the area corresponding to the reading window and pressed against the liner. When the exposed reading surface is subjected to friction, it can cause the flexible reading medium to move bidirectionally, and the first and second reels passively rotate with the movement of the flexible reading medium, thus achieving unwinding and rewinding.

2. The friction direct-drive scroll portable reader according to claim 1, characterized in that: The constant force tensioning component is a constant torque elastic winding component, one end of which is linked to the roller and the other end is fixed relative to the housing, continuously applying winding torque to the corresponding roller; the two sets of constant torque elastic winding components work independently to jointly maintain the bidirectional tension state of the flexible reading carrier.

3. The friction direct-drive scroll portable reader according to claim 1, characterized in that: The reader is equipped with a damping positioning component, which is used to increase the rotational resistance of the scroll or the sliding resistance of the flexible reading medium, so as to stop and position itself when the exposed reading surface is released.

4. The friction direct-drive scroll portable reader according to claim 1, characterized in that: The flexible reading medium is selected from at least one of plastic film, synthetic paper, thin paper, and composite flexible sheet.

5. The friction direct-drive scroll portable reader according to claim 1, characterized in that: The housing has limiting edges on both sides of the reading window, or annular limiting bosses at both ends of the scroll, to limit the lateral displacement of the flexible reading medium.

6. A friction direct-drive reading method for a scroll reader, characterized in that, Includes the following steps: Step 1: Wind the flexible reading medium around the two ends of two parallel spools respectively. Apply a winding torque to the two spools through two sets of constant force tensioning components to make the middle section of the flexible reading medium bidirectionally tensioned and attached to the backing plate, forming an exposed reading surface. Step 2: Apply a frictional force along the direction of the flexible reading carrier's belt to the exposed reading surface, directly causing the flexible reading carrier to translate. Step 3: The two scrolls passively rotate as the flexible reading medium moves, corresponding to the unwinding and rewinding actions, thus achieving continuous displacement of the reading content.

7. The friction direct drive reading method according to claim 6, characterized in that: By increasing the rotational resistance of the scroll or the sliding resistance of the flexible reading medium through the damping positioning component, the flexible reading medium remains in its current position after the frictional force disappears, thus achieving positioning upon release.

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