Adjustable multifunctional writing auxiliary tool
By designing adjustable grip and installation components, the problem of unstable writing in people with hand dysfunction is solved, and a multi-functional writing auxiliary tool for stable writing and rehabilitation exercise is realized to adapt to different hand conditions and muscle strength needs.
Patent Information
- Application Number
- CN202422514039.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-17
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-10-17
AI Technical Summary
Existing hand dysfunction writing assistance tools lack flexibility in adjustment and cannot adapt to different hand sizes and grasping forces, resulting in unstable writing and ineffective exercise of hand muscle strength.
An adjustable multi-function writing aid is designed, including adjustable grip and mounting components, adapted to different palm sizes and pen grip habits, and flexible adjustment and multi-function use is achieved through adjustable pen holder angles and removable mounting tables.
It realizes stable writing that adapts to different hand conditions, reduces the writing burden, improves writing accuracy, and can be used for rehabilitation exercise, activates the strength of the hand and forearm muscles, and expands the scope of use.
Smart Images
Figure CN223266528U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of medical rehabilitation products, in particular to an adjustable multifunctional writing auxiliary appliance. Background Art
[0002] Hand dysfunction is a common impairment among people with physical disabilities, severely impacting daily life and the use of tools. Currently, a large number of assistive grasping devices have been developed as self-help tools for people with hand dysfunction, largely alleviating some of their daily challenges. Universal cuffs, for example, assist with grooming and feeding, among other activities, however, writing difficulties remain a common problem.
[0003] The mechanical analysis of normal writing is as follows: the pinky finger and the ulnar side of the palm serve as the fulcrum, the first three fingers stabilize the pen, and the wrist is used to press down on the pen. The thumb bears the primary load, balancing the pressure, holding the pen, and moving it. The other fingers assist in stabilizing the pen. In other words, normal writing requires the fingers to be primarily responsible for pen stability and movement, while the wrist is responsible for the downward force of the pen. However, individuals with hand dysfunction may be unable to write normally due to insufficient finger grip strength and poor wrist control.
[0004] Prior art writing aids for people with hand dysfunction are mostly fixed-type, passively fixing the fingers or wrist joints to replace the insufficient finger and wrist muscle strength required to complete writing. While this approach solves the problem of unstable pen holding, it also places the entire burden of pen placement and movement on the forearm. The result is excessive burden on the forearm, insufficient movement precision, and inability to write effectively. Furthermore, this design lacks flexibility and adjustability to suit different hand sizes and grip strength, resulting in limitations in existing technology. Utility Model Content
[0005] The utility model is developed to solve the above problems and aims to provide an adjustable multifunctional writing auxiliary tool.
[0006] The utility model provides an adjustable multifunctional writing auxiliary tool, which has the following features:
[0007] The grip assembly includes a palm rest and a finger rest. The palm rest is in the shape of an arc plate. A slot is provided inside the palm rest along its arc direction. The slot extends to one end surface of the palm rest. The other end surface of the palm rest is an inwardly concave arc surface for fitting with the thumb. The finger rest has a connecting section and a fixing section. The connecting section is in the shape of an arc plate. Its curvature is the same as that of the slot, and the size of the connecting section is equal to that of the slot, so that the finger rest can be slidably arranged on the palm rest. The fixing section is in the shape of a rectangular block for conveniently buckling fingers other than the thumb on the fixing section. The size of the fixing section is larger than that of the slot.
[0008] The mounting assembly includes a connecting rod and a mounting platform. One end of the connecting rod is connected to the arc-shaped inner wall of the palm rest and is arranged near the bottom end of the palm rest. A hinge groove is provided on the other end of the connecting rod. The hinge groove is a three-opening groove structure, and its three grooves are respectively located on the two side walls and the other end surface of the connecting rod. The mounting platform has a hinge section and a mounting section. The hinge section is T-shaped. The vertical section of the hinge section is inserted into the hinge groove and passes through the hinge assembly, so that the mounting platform is hingedly set on the connecting rod. The mounting section is detachably arranged on the horizontal section of the hinge section. The mounting section has a pen cover for fixing the pen.
[0009] The adjustable multifunctional writing assistive device provided by the present invention may also have the following feature: the outer walls of the palm rest and the finger rest are wrapped with anti-slip cushions.
[0010] The adjustable multifunctional writing assistive device provided by the present invention may also have the following features: a through hole connected to the slot is provided on the top surface of the palm rest, a fixing rod is provided in the through hole, and the inner wall of the through hole and the outer wall of the fixing rod are provided with internal and external threads that engage with each other.
[0011] The adjustable multifunctional writing assistive tool provided by the present invention may also have the following features: the hinge assembly includes a bolt and a nut, one end of the bolt sequentially passes through the connecting rod on one side of the hinge groove, the hinge section, and the connecting rod on the other side of the hinge groove, and the nut is screwed onto one end of the bolt.
[0012] Functions and effects of utility models
[0013] According to the adjustable multifunctional writing assistive device involved in the utility model, the adjustable palm rest can adapt to the palm size of most people, and the adjustable pen shaft angle can adapt to the pen holding habits of most people. In addition to being mainly used to solve the problem of writing difficulties in daily life, its adjustable properties also enable it to be used in rehabilitation exercises. It can be flexibly adjusted based on different muscle strength levels to exercise and activate the muscle strength of the hands and forearms, thereby achieving the purpose of rehabilitation training. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a structural diagram of the utility model;
[0015] Figure 2 It is a structural schematic diagram of the utility model from another perspective.
[0016] Description of reference numerals:
[0017] 10. Grip assembly; 11. Palm rest; 111. Slot; 112. Arc-shaped surface; 12. Finger rest; 121. Connecting section; 122. Fixing section; 13. Fixing rod; 20. Mounting assembly; 21. Connecting rod; 211. Hinge slot; 22. Mounting platform; 221. Hinge section; 222. Mounting section; 23. Bolt; 24. Nut. DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is described in detail in the following embodiments with reference to the accompanying drawings.
[0019] Example
[0020] Figure 1 It is a structural diagram of the utility model. Figure 2 It is a structural schematic diagram of the utility model from another perspective.
[0021] like Figure 1 and Figure 2 As shown, this embodiment provides an adjustable multifunctional writing assistive device, including: a gripping component 10 and a mounting component 20.
[0022] like Figure 1 and Figure 2 As shown, the gripping assembly 10 includes a palm rest 11 and a finger rest 12. The palm rest 11 is in the shape of an arc-shaped plate. A slot 111 is provided inside the palm rest 11 and along its arc direction. The notch of the slot 111 extends to one end face of the palm rest 11. The other end face of the palm rest 11 is an inwardly concave arc-shaped surface 112, which is used to fit with the thumb. The finger rest 12 has a connecting section 121 and a fixing section 122. The connecting section 121 is in the shape of an arc-shaped plate, and its curvature is the same as that of the slot 111. The size of the connecting section 121 is equal to the size of the slot 111, so that the finger rest 12 can be slidably provided on the palm rest 11. The fixing section 122 is in the shape of a rectangular block, which is used to facilitate the buckling of fingers other than the thumb on the fixing section 122. The size of the fixing section 122 is larger than the size of the slot 111.
[0023] In this embodiment, the palm rest 11 is designed based on ergonomics, and its curvature is the same as the curvature of most people's palms.
[0024] In this embodiment, the outer walls of the palm rest 11 and the finger rest 12 are wrapped with anti-skid pads, wherein the anti-skid pads are preferably made of rubber or sponge.
[0025] In this embodiment, a through hole communicating with the slot 111 is formed on the top surface of the palm rest 11 , a fixing rod 13 is disposed in the through hole, and the inner wall of the through hole and the outer wall of the fixing rod 13 are provided with internal and external threads that mesh with each other.
[0026] In this embodiment, the edges of the palm rest 11 and the finger rest 12 are rounded, so as to facilitate patients or rehabilitation trainees to hold the grip assembly 10 of the present invention.
[0027] like Figure 1 and Figure 2 As shown, the mounting assembly 20 includes a connecting rod 21 and a mounting platform 22. One end of the connecting rod 21 is connected to the curved inner wall of the palm rest 11 and is located near the bottom end of the palm rest 11. The other end of the connecting rod 21 is provided with a hinge slot 211. The hinge slot 211 is a three-opening slot structure, with the three slots located on the two side walls and the other end surface of the connecting rod 21. The mounting platform 22 has a hinge section 221 and a mounting section 222. The hinge section 221 is T-shaped. The vertical section of the hinge section 221 is inserted into the hinge slot 211 and is hingedly mounted on the connecting rod 21 through the hinge assembly. The mounting section 222 is detachably mounted on the horizontal section of the hinge section 221. The mounting section 222 has a pen cap for fixing a pen. In particular, because the connecting rod 21 and the mounting platform 22 are hingedly connected by the hinge assembly, the mounting platform 22 can be replaced, thereby improving the practical effect of the present invention. Specifically, the mounting base 22 capable of holding a pen is replaced with a mounting base 22 capable of holding an eraser, a compass, a toothbrush, a spoon or a fork, so that the present invention is no longer just a writing aid, but can also be used as a life aid, thereby greatly improving the practical effect of the present invention.
[0028] In this embodiment, the connecting rod 21 and the palm rest 11 can be integrally formed.
[0029] In this embodiment, the hinge assembly includes a bolt 23 and a nut 24. One end of the bolt 23 passes through the connecting rod 21 on one side of the hinge groove 211, the hinge section 221, and the connecting rod 21 on the other side of the hinge groove 211 in sequence, and the nut 24 is screwed on one end of the bolt 23.
[0030] In this embodiment, a slot can be provided on the transverse section of the hinged section 221, and a latch rod that can engage with the slot can be provided on the mounting section 222, so that the mounting section 222 can be removed from the hinged section 221, and then a different mounting section 222 can be replaced, such as a mounting section 222 that can clamp an eraser, a compass, a toothbrush, a spoon or a fork, thereby improving the practical effect of the present invention.
[0031] The present utility model is mainly used to assist people with hand dysfunction to independently complete daily writing activities. When it is used, the thumb is attached to the other end surface of the palm rest 11 (the concave arc surface 112), and the other four fingers are clamped on the fixed section 122 of the finger rest 12, and the palm can be bent so that the palm surface is attached to the outer wall of the palm rest 11. Therefore, the palm fixing method of the present utility model can solve the problem that the fingers have no active muscle strength and there is no way to hold the pen stably. In addition, because the position of the pen is moved from the finger end to the palm end, the movement burden of the thumb during the writing process is reduced. At the same time, it is fixed on the palm, and small movements of the large joints can be utilized, making the control of the pen less difficult and more stable. In addition, due to the special position of the pen, the form of the writing action is changed from the downward pressure of the finger wrist to the rotation of the forearm, which solves the problem that patients with hand function loss cannot press the wrist to write. Secondly, the adjustable palm rest 11 can be adapted to the size of most people's palms, and also provides the opportunity for people with special needs (such as those with hand deformities) to hold a pen. The adjustable pen tilt angle can adapt to the pen-holding habits of most people. In addition, the mounting section 222 of the present invention can be replaced with other tools, making the use of the present invention not limited to writing. For example, it can be replaced with a toothbrush, spoon, fork, etc., and can also be replaced with a specially structured counterweight to exercise hand function muscle strength, thereby making the use of the present invention very wide.
[0032] Moreover, the present invention has taken individual differences into consideration during the material selection process, and most of the selected materials are adjustable materials. When it comes to personal use, 3D printing can be used to make samples for fine-tuning, and plastic molds can be used later. Individual differences can be resolved through adjustments to the present invention.
[0033] Functions and Effects of the Embodiments
[0034] According to the adjustable multifunctional writing assistive device involved in the utility model, the adjustable palm rest can adapt to the palm size of most people, and the adjustable pen shaft angle can adapt to the pen holding habits of most people. In addition to being mainly used to solve the problem of writing difficulties in daily life, its adjustable properties also enable it to be used in rehabilitation exercises. It can be flexibly adjusted based on different muscle strength levels to exercise and activate the muscle strength of the hands and forearms, thereby achieving the purpose of rehabilitation training.
[0035] The above-mentioned embodiments are preferred examples of the present invention and are not intended to limit the scope of protection of the present invention.
Claims
1. An adjustable multifunctional writing aid, characterized in that: include: The grip assembly includes a palm rest and a finger rest, wherein the palm rest is in the shape of an arc-shaped plate, and a slot is provided inside the palm rest and along its arc direction, the notch of the slot extends to one end surface of the palm rest, and the other end surface of the palm rest is an inwardly concave arc surface for fitting with the thumb surface, and the finger rest has a connecting section and a fixing section, wherein the connecting section is in the shape of an arc-shaped plate, and its curvature is the same as that of the slot, and the size of the connecting section is equal to the size of the slot, so that the finger rest can be slidably arranged on the palm rest, and the fixing section is in the shape of a rectangular block for conveniently buckling fingers other than the thumb on the fixing section, and the size of the fixing section is larger than the size of the slot. The mounting assembly includes a connecting rod and a mounting platform, one end of the connecting rod is connected to the arc-shaped inner wall of the palm rest and is arranged near the bottom end of the palm rest, and a hinge groove is provided on the other end of the connecting rod, and the hinge groove is a three-opening groove structure, and its three grooves are respectively located on the two side walls and the other end surface of the connecting rod; the mounting platform has a hinge section and a mounting section, and the hinge section is T-shaped, and the vertical section of the hinge section is inserted into the hinge groove and is hingedly set on the connecting rod through the hinge assembly, and the mounting section is detachably arranged on the horizontal section of the hinge section, and the mounting section has a pen cover for fixing the pen.
2. The adjustable multifunctional writing assistive device according to claim 1, characterized in that: in, The outer walls of the palm rest and the finger rest are wrapped with anti-skid pads.
3. The adjustable multifunctional writing assistive device according to claim 1, characterized in that: in, A through hole communicating with the slot is provided on the top surface of the palm rest, a fixing rod is provided in the through hole, and an inner wall of the through hole and an outer wall of the fixing rod are provided with internal threads and external threads that mesh with each other.
4. The adjustable multifunctional writing assistive device according to claim 1, characterized in that: in, The hinge assembly includes a bolt and a nut, one end of the bolt passes through the connecting rod on one side of the hinge groove, the hinge section, and the connecting rod on the other side of the hinge groove in sequence, and the nut is screwed on one end of the bolt.