TW201028298A - Braille device - Google Patents

Braille device Download PDF

Info

Publication number
TW201028298A
TW201028298A TW98102180A TW98102180A TW201028298A TW 201028298 A TW201028298 A TW 201028298A TW 98102180 A TW98102180 A TW 98102180A TW 98102180 A TW98102180 A TW 98102180A TW 201028298 A TW201028298 A TW 201028298A
Authority
TW
Taiwan
Prior art keywords
braille
recording medium
dot
bump
positioning structure
Prior art date
Application number
TW98102180A
Other languages
Chinese (zh)
Other versions
TWI351352B (en
Inventor
Chun-Chiang Huang
Jin-Dean Cheng
Original Assignee
Univ Nat Taiwan Science Tech
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Univ Nat Taiwan Science Tech filed Critical Univ Nat Taiwan Science Tech
Priority to TW98102180A priority Critical patent/TWI351352B/en
Publication of TW201028298A publication Critical patent/TW201028298A/en
Application granted granted Critical
Publication of TWI351352B publication Critical patent/TWI351352B/en

Links

Landscapes

  • Printers Characterized By Their Purpose (AREA)
  • Input From Keyboards Or The Like (AREA)

Abstract

A braille device forms braille on a recording media. The braille device comprises a braiile plate, a vertical positioning mechanism, a horizontal positioning mechanism and a braille producer. The braille plate comprises a plurality of protrusion units formed in matrix. The vertical positioning mechanism is disposed on the braille plate. The horizontal positioning mechanism is disposed on the vertical positioning mechanism. The horizontal positioning mechanism slides in a first direction on the vertical positioning mechanism. The braille producer slides in a second direction on horizontal positioning mechanism. The recording media is disposed between the braille producer and the braille plate. The braille producer comprises six bottoms and six braille elements. When the bottom is pressed, the braille element presses and deforms the recording media.

Description

201028298 六、發明說明: 【發明所屬之技術領域】 本發明係有關於一種點字裝置,特別係有關於可回饋 點字器座標的點字裝置。 【先前技術】 在習知技術中,視障者在寫字的時候係使用點字板以 及點字筆進行點字。但由於點字的字體面積小,因此容易 Φ 壓錯點。此外,由於閱讀的時候字體應為凸點,因此視障 者在寫字的時候需要壓反字。造成視障者的不便。 【發明内容】 本發明係為了解決習知技術之問題而提供之一種點 字裝置,用以在一記錄媒體上記錄點字。該點字裝置包括 一點字板、一垂直定位結構、一水平定位結構以及一點字 器。點字板具有一第一側邊、一第二侧邊以及複數的凸點 單元,該第二側邊垂直於該第一側邊,該等凸點單元係以 ⑩ 矩陣形式排列,每一凸點單元包括六個凸點,該等凸點以 二乘三的矩陣形式排列。垂直定位結構設於該第一側邊。 水平定位結構連接該垂直定位結構,該水平定位結構於該 垂直定位結構上沿一第一方向滑動。點字器設於該水平定 位結構,該點字器於該水平定位結構上沿一第二方向滑 動,該第二方向垂直於該第一方向,該記錄媒體設於該點 字器與該點字板之間,其中,該點字器包括六按鍵以及六 點字元件。每一點字元件具有一點字端,該等按鍵連接該 等點字元件,當該按鍵被被施加一壓按力時,該點字元件 朝該點字板移動,該點字端將該記錄媒體對應該凸點按 0970089TW/0912-A513 61TW 3 201028298 壓,使該記錄媒體局部變形而形成點字。 應用本發明之點字裝置,透過媒體固定元件以磁力固 定記錄媒體,且透過卡合的方式固定點字器的座標,因此 可給予視障者足夠的回饋感,使其方便確認點字器的位 置,以及記錄媒體是否已放置妥當。此外,由於在記錄媒 體上點出的字體為凸點,因此不需要壓反字,提高點字時 的準確率以及方便性。 【實施方式】 ® 參照第la、lb圖,其係顯示本發明之點字裝置1,用 以在一記錄媒體上記錄點字。該點字裝置1包括一點字板 10、一垂直定位結構20、一水平定位結構30以及一點字 器40。點字板10具有一第一侧邊11、一第二側邊12以 及複數的凸點單元13,該第二侧邊12垂直於該第一侧邊 11,該等凸點單元13係以矩陣形式排列,每一凸點單元 包括六個凸點14,該等凸點14以二乘三的矩陣形式排 列。垂直定位結構20設於該第一側邊11。水平定位結構 φ 30連接該垂直定位結構20,該水平定位結構30於該垂直 定位結構20上沿一第一方向Y滑動。在此實施例中,點 字板10與垂直定位結構20係以一體成形的方式形成。 點字器40設於該水平定位結構30,該點字器40於該 水平定位結構30上沿一第二方向X滑動,該第二方向X 垂直於該第一方向Y,該記錄媒體設於該點字器與該點字 板之間。該點字器40包括六按鍵41以及六點字元件42。 在此實施例中,按鍵41以及點字元件42係以一體成形的 方式形成。201028298 VI. Description of the Invention: TECHNICAL FIELD OF THE INVENTION The present invention relates to a braille device, and more particularly to a braille device that can reciprocate a geophone coordinate. [Prior Art] In the prior art, a visually impaired person uses a letter pad and a point pen to perform braille while writing. However, since the font area of the Braille is small, it is easy to Φ the wrong point. In addition, since the font should be bumped when reading, the visually impaired person needs to suppress the word when writing. Inconvenience caused by visually impaired people. SUMMARY OF THE INVENTION The present invention is directed to a dot device for solving a problem of the prior art for recording a braille on a recording medium. The braille device includes a dot plate, a vertical positioning structure, a horizontal positioning structure, and a dot character. The braille plate has a first side edge, a second side edge and a plurality of bump cells, the second side edge being perpendicular to the first side edge, the bump cells being arranged in a matrix of 10, each convex The dot unit includes six bumps arranged in a matrix of two by three. A vertical positioning structure is disposed on the first side. The horizontal positioning structure is coupled to the vertical positioning structure, and the horizontal positioning structure slides in the first direction on the vertical positioning structure. The singer is disposed on the horizontal positioning structure, the singer slides on the horizontal positioning structure in a second direction, the second direction is perpendicular to the first direction, and the recording medium is disposed at the stencil and the point Between the words, wherein the braille comprises six buttons and a six-point character. Each of the word elements has a dot end, and the keys are connected to the letter elements, and when the button is applied with a pressing force, the zigzag element moves toward the dial plate, and the dot end positions the recording medium Corresponding to the pressing point of 9790089TW/0912-A513 61TW 3 201028298, the recording medium is locally deformed to form a braille. By applying the braille device of the invention, the recording medium is fixed by magnetic force through the media fixing component, and the coordinates of the braille device are fixed by the snapping manner, so that the visually impaired person can give sufficient feedback feeling to make it convenient for confirming the ticker. Location, and whether the recording media has been placed properly. In addition, since the font pointed out on the recording medium is a bump, there is no need to suppress the word, and the accuracy and convenience of the word are improved. [Embodiment] ® Referring to Figs. 1a and 1b, there is shown a Braille device 1 of the present invention for recording a braille on a recording medium. The braille device 1 includes a dot plate 10, a vertical positioning structure 20, a horizontal positioning structure 30, and a dotter 40. The Braille pad 10 has a first side edge 11, a second side edge 12, and a plurality of bump cells 13, the second side edge 12 being perpendicular to the first side edge 11, the bump cells 13 being matrixed Formally arranged, each bump unit includes six bumps 14, which are arranged in a matrix of two by three. The vertical positioning structure 20 is disposed on the first side edge 11. The horizontal positioning structure φ 30 connects the vertical positioning structure 20, and the horizontal positioning structure 30 slides in the first direction Y on the vertical positioning structure 20. In this embodiment, the dial plate 10 and the vertical positioning structure 20 are formed in an integrally formed manner. The singer 40 is disposed on the horizontal positioning structure 30, the singer 40 is slid on the horizontal positioning structure 30 in a second direction X, the second direction X is perpendicular to the first direction Y, and the recording medium is disposed on the The grammar is between the dial board. The gueller 40 includes six buttons 41 and a six-point character element 42. In this embodiment, the button 41 and the braille element 42 are formed in an integrally formed manner.

參照第2a圖,其係顯示第1圖中之點字器40於A-A 0970089TW/0912-A51361TW 4 201028298 方向的截面圖,在此顯示有置放記錄媒體2的情況,每一 點字元件42具有一點字端43,該等按鍵41連接該等點 字元件42。參照第2b圖,當該按鍵41被被施加一壓按 力F時,該點字元件42朝該點字板10移動,該點字端 43將該記錄媒體2對應該凸點14按壓,使該記錄媒體2 局部變形而形成點字。 該點字器40更包括殼體45以及彈力元件46,每一 彈力元件46對應設於該殼體45以及該按鍵41之間,當 • 該壓按力F移除時,該彈力元件46對該按鍵41提供彈 力,以推動該點字元件42離開該記錄媒體2。該等彈力 元件46可以為彈簧,例如壓縮彈簧。每一點字元件42更 具有一凹部44,該凹部44形成於該點字端43,當該點字 端43將該記錄媒體2對應該凸點14按壓時,該該凸點 14進入該凹部44,使該記錄媒體2局部變形而形成點字。 該等凸點14的形狀為半球型。該等凹部44的形狀為半球 型。 搭配參照第la、3圖,第3圖係顯示第la圖中的B-B © 方向截面圖,該垂直定位結構20包括複數個垂直定位卡 槽21,該等垂直定位卡槽21係以等間距的方式排列,該 水平定位結構30包括垂直定位卡榫31,該垂直定位卡榫 31以可選擇的方式彈性卡合該等垂直定位卡槽21,藉此 定位該點字器於該第一方向γ上的位置。 搭配參照第la、2a圖,該水平定位結構30包括複數 個水平定位卡槽32,該等水平定位卡槽32係以等間距的 方式排列,該點字器40更包括一水平定位卡榫47,該水 平定位卡榫47以可選擇的方式彈性卡合該等水平定位卡 0970089TW/0912-A513 61TW 5 201028298 槽32,藉此定位該點字器40於該第二方向X上的位置。 在本發明的實施例_,垂直定位卡槽21以及水平定 位卡榫47為矩形槽孔,此外,該垂直定位卡榫31以及該 水平定位卡榫47的材質可以為塑膠。 參照第la、lb圖,該點字裝置1更包括一媒體固定 元件50,該記錄媒體夾設於該媒體固定元件50與該點字 板1之間,藉此固定該記錄媒體的位置。在一實施例中, 該點字板1包括金屬,該媒體固定元件50為磁鐵,該媒 # 體固定元件50以可拆卸的方式設於該點字板1之上。該 媒體固定元件50鄰近該點字板1之該第二側邊12。 當視障者欲進行點字時,可由右而左,由上而下的移 動點字器,以對記錄媒體的頁面進行點字。 該記錄媒體可以為紙張或是其他材料。 應用本發明之點字裝置,透過媒體固定元件50以磁 力固定記錄媒體,且透過卡合的方式固定點字器40的座 標,因此可給予視障者足夠的回饋感,使其方便確認點字 器40的位置,以及記錄媒體是否已放置妥當。此外,由 ❹ 於在記錄媒體上點出的字體為凸點,因此不需要壓反字, 提高點字時的準確率以及方便性。 0970089TW/0912-Α51361TW 6 201028298 【圖式簡單說明】 第la係顯示本發明實施例之點字裝置的俯視圖; 第lb係顯示本發明實施例之點字裝置的爆炸圖; 第2a圖係顯示第la圖中的A-A方向截面圖; 第2b圖係顯示按鍵被按壓的情形;以及 第3圖係顯示第la圖中的B-B方向截面圖。 【主要元件符號說明】 10〜點字板; 12〜第二側邊; 14〜凸點; 21〜垂直定位卡槽; 31〜垂直定位卡榫; 40〜點字器; 42〜點字元件; 44〜凹部; 46〜彈力元件; 50〜媒體固定元件。 1〜點字裝置; ❿ 11〜第一側邊; 13〜凸點單元; 20〜垂直定位結構; 30〜水平定位結構; 32〜水平定位卡槽; 41〜按鍵; 43〜點字端; 45〜殼體; φ 47〜水平定位卡榫;Referring to Fig. 2a, which is a cross-sectional view showing the brailleter 40 of Fig. 1 in the direction of AA 0970089TW/0912-A51361TW 4 201028298, where the recording medium 2 is placed, each of the character elements 42 has a point. The word terminal 43, these buttons 41 are connected to the word elements 42. Referring to FIG. 2b, when the button 41 is applied with a pressing force F, the braille element 42 moves toward the dial plate 10, and the digit end 43 presses the recording medium 2 against the bump 14 so that The recording medium 2 is partially deformed to form a braille. The singer 40 further includes a housing 45 and an elastic member 46. Each of the elastic members 46 is disposed between the housing 45 and the button 41. When the pressing force F is removed, the elastic member 46 is opposite. The button 41 provides an elastic force to urge the braille element 42 away from the recording medium 2. The resilient members 46 can be springs, such as compression springs. Each of the dot elements 42 further has a recess 44 formed at the point end 43. When the point end 43 presses the recording medium 2 against the bump 14, the bump 14 enters the recess 44. The recording medium 2 is locally deformed to form a braille. The shape of the bumps 14 is hemispherical. The recesses 44 have a hemispherical shape. Referring to FIGS. 3 and 3, FIG. 3 is a cross-sectional view showing the BB © direction in the first drawing. The vertical positioning structure 20 includes a plurality of vertical positioning slots 21 which are equidistantly spaced. Arranged in a manner, the horizontal positioning structure 30 includes a vertical positioning cassette 31 that elastically engages the vertical positioning card slots 21 in an alternative manner, thereby positioning the letter marker in the first direction γ The location on the top. Referring to FIGS. 1a and 2a, the horizontal positioning structure 30 includes a plurality of horizontal positioning slots 32, which are arranged in an equidistant manner. The braille 40 further includes a horizontal positioning cassette 47. The horizontal positioning cassette 47 elastically engages the horizontal positioning card 0990089TW/0912-A513 61TW 5 201028298 slot 32 in an alternative manner, thereby locating the position of the braille 40 in the second direction X. In the embodiment of the present invention, the vertical positioning card slot 21 and the horizontal positioning card slot 47 are rectangular slots. In addition, the vertical positioning cassette 31 and the horizontal positioning cassette 47 may be made of plastic. Referring to Figures 1a and 1b, the Braille device 1 further includes a media fixing member 50 interposed between the media fixing member 50 and the dot plate 1, thereby fixing the position of the recording medium. In one embodiment, the dial plate 1 comprises a metal, and the media fixing member 50 is a magnet, and the media fixing member 50 is detachably disposed on the dial plate 1. The media securing element 50 is adjacent the second side 12 of the dial plate 1. When the visually impaired person wants to perform braille, the right-to-left, top-down mobile phasor can be used to type the page of the recording medium. The recording medium can be paper or other material. By applying the braille device of the present invention, the recording medium is fixed by the magnetic force through the medium fixing member 50, and the coordinates of the brailleter 40 are fixed by the snapping manner, so that the visually impaired person can be given sufficient feedback feeling to facilitate the confirmation of the braille. The position of the device 40 and whether the recording medium has been placed properly. In addition, since the fonts pointed out on the recording medium are bumps, there is no need to suppress the reverse characters, and the accuracy and convenience of the braille are improved. 0970089TW/0912-Α51361TW 6 201028298 [Simplified description of the drawings] The first drawing shows a top view of the braille device of the embodiment of the present invention; the lb shows the exploded view of the braille device of the embodiment of the present invention; A cross-sectional view in the AA direction in the la diagram; Fig. 2b shows a case where the button is pressed; and Fig. 3 shows a cross-sectional view in the BB direction in the lath diagram. [Main component symbol description] 10 to dot plate; 12 to second side; 14 to bump; 21 to vertical positioning card slot; 31 to vertical positioning card; 40 to dotter; 42 to dot character; 44 ~ recessed; 46 ~ elastic element; 50 ~ media fixed component. 1 to dot device; ❿ 11 to first side; 13 to bump unit; 20 to vertical positioning structure; 30 to horizontal positioning structure; 32 to horizontal positioning card slot; 41 to button; 43 to dot terminal; ~ housing; φ 47 ~ horizontal positioning card;

0970089TW/0912-A51361TW0970089TW/0912-A51361TW

Claims (1)

201028298 七、申請專利範圍: 1. 一種點字裝置,用以在一記錄媒體上記錄點字,包 括: 一點字板,具有一第一側邊、一第二側邊以及複數的 凸點單元,該第二側邊垂直於該第一侧邊,該等凸點單元 係以矩陣形式排列,每一凸點單元包括六個凸點,該等凸 點以二乘三的矩陣形式排列; 一垂直定位結構,設於該第一側邊; 一水平定位結構’連接該垂直定位結構’該水平定位 ❹ 結構於該垂直定位結構上沿一第一方向滑動;以及 一點字器,設於該水平定位結構,該點字器於該水平 定位結構上沿一第二方向滑動,該第二方向垂直於該第一 方向,該記錄媒體設於該點字器與該點字板之間,其中, 該點字器包括: 六按鍵,以及 六點字元件,每一點字元件具有一點字端,該等按鍵 連接該等點字元件,當該按鍵被被施加一壓按力時,該點 字元件朝該點字板移動,該點字端將該記錄媒體對應該凸 ❿ 點按壓,使該記錄媒體局部變形而形成點字。 2. 如申請專利範圍第1項所述之點字裝置,其中,該 點字器更包括一殼體以及六彈力元件,每一彈力元件對應 設於該殼體以及該按鍵之間,當該壓按力移除時,該彈力 元件對該按鍵提供彈力,以推動該點字元件離開該記錄媒 體。 3. 如申請專利範圍第1項所述之點字裝置,其中,該 等彈力元件為彈簧。 4. 如申請專利範圍第3項所述之點字裝置,其中,該 等彈力元件為壓縮彈簧。 0970089TW/0912-A51361TW 8 201028298 5. 如申請專利範圍第!項所述之點字裝置, -點字元件更具有-凹部,該凹部形成於該 ^ 點字端將該記錄媒體對應言亥凸點㈣時該3 凹部,使該記錄媒體局部變形而形成點 凸點進入該 6. 如申請專利範圍第丨項所述之點字裝置,复 垂直疋位結構包括複數個垂直定位卡槽, —= =等二的排列,w 可選擇的方式彈性卡合該等垂 直^卡,,藉此定位該點字器於該第—方向上的位1。 7.如申請專職㈣6項所述之點字裝置, 定ί結構包括複數個水平定位卡槽,該等水i定位Ϊ 2係:專間距的方式排列,該點字器更包括一水平定位卡 t定位卡榫以可選擇的方式彈性卡合該等水平Ϊ 位卡槽,藉此定㈣點字器於該第二方向上的位置。 一讲L如申請專利範圍第1項所述之點字裝置,其更包括 點〜把固疋兀件’該記錄媒體夾設於該媒體固定元件與該 "子板之間,藉此固定該記錄媒體的位置。 • irt-中請專利範圍第8項所述之點字裝置,其中,兮 ”子板L括金屬,該媒體固定元件為磁鐵。 μ 姑财L〇.如申請專利範圍第8項所述之點字裝置,其中, 固定元件鄰近該點字板之該第二側邊。 中請專利範圍第1項所述之點字裝置,其中, 5亥專凸點的形狀為半球型。 甲 节蓉L2^!請專利範圍第11項所述之點字裝置’其中, 5亥荨凹部的形狀為半球型。 甲 0970089TW/0912-A51361TW201028298 VII. Patent application scope: 1. A dot-type device for recording a braille on a recording medium, comprising: a dot plate having a first side edge, a second side edge and a plurality of bump cells. The second side is perpendicular to the first side, and the bump units are arranged in a matrix form, each bump unit includes six bumps, and the bumps are arranged in a matrix of two by three; a positioning structure disposed on the first side; a horizontal positioning structure 'connecting the vertical positioning structure' to the horizontal positioning structure sliding in the first direction on the vertical positioning structure; and a dotter device disposed at the horizontal position a structure in which the singer slides in a second direction perpendicular to the first direction, and the recording medium is disposed between the stencil and the stencil, wherein The braille device comprises: a six-button element, and a six-point word component, each of the dot-character components having a point end, the buttons connecting the braille elements, and when the button is applied with a pressing force, the braille element faces The The letter pad moves, and the dot end presses the recording medium corresponding to the convex point to locally deform the recording medium to form a braille. 2. The braille device of claim 1, wherein the braille device further comprises a casing and six elastic members, each resilient member being correspondingly disposed between the casing and the button, when When the pressing force is removed, the elastic element provides an elastic force to the button to push the braille element away from the recording medium. 3. The braille device of claim 1, wherein the elastic elements are springs. 4. The braille device of claim 3, wherein the elastic elements are compression springs. 0970089TW/0912-A51361TW 8 201028298 5. If you apply for the patent scope! The braille device of the item has a recessed portion formed at the end of the dot to correspond to the three concave portions when the recording medium corresponds to the bump (4), and the recording medium is locally deformed to form a dot. The bumps enter the 6. The braille device according to the scope of the patent application, the complex vertical clamping structure comprises a plurality of vertical positioning card slots, an array of -== equals, and w is elastically engageable in an alternative manner. Waiting for the vertical card, thereby positioning the biter 1 in the first direction. 7. If applying the full-time (4) 6-word device, the fixed structure includes a plurality of horizontal positioning card slots, the water i positioning Ϊ 2 series: arranged in a special spacing manner, the braille device further includes a horizontal positioning card The t-position card elastically engages the horizontal clamping slots in an alternative manner, thereby determining the position of the (four) braille in the second direction. A L-shaped device as claimed in claim 1, further comprising a point-to-fixing member of the recording medium between the media fixing member and the "sub-board, thereby fixing The location of the recording medium. The imitating device of the eighth aspect of the invention, wherein the 兮" sub-board L comprises a metal, and the medium fixing member is a magnet. μ 姑财 L〇. As described in claim 8 A braille device, wherein the fixing member is adjacent to the second side of the dial plate. The baffle device according to claim 1, wherein the shape of the 5th convex bump is hemispherical. L2^! Please refer to the Braille device described in Item 11 of the patent range, in which the shape of the 5 荨 recess is hemispherical. A 9790089TW/0912-A51361TW
TW98102180A 2009-01-21 2009-01-21 Braille device TWI351352B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW98102180A TWI351352B (en) 2009-01-21 2009-01-21 Braille device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW98102180A TWI351352B (en) 2009-01-21 2009-01-21 Braille device

Publications (2)

Publication Number Publication Date
TW201028298A true TW201028298A (en) 2010-08-01
TWI351352B TWI351352B (en) 2011-11-01

Family

ID=44853528

Family Applications (1)

Application Number Title Priority Date Filing Date
TW98102180A TWI351352B (en) 2009-01-21 2009-01-21 Braille device

Country Status (1)

Country Link
TW (1) TWI351352B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI460693B (en) * 2012-01-13 2014-11-11 Protek Shanghai Ltd Braille reading-writing device
US9390676B2 (en) 2011-09-21 2016-07-12 International Business Machines Corporation Tactile presentation of information

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9390676B2 (en) 2011-09-21 2016-07-12 International Business Machines Corporation Tactile presentation of information
TWI460693B (en) * 2012-01-13 2014-11-11 Protek Shanghai Ltd Braille reading-writing device

Also Published As

Publication number Publication date
TWI351352B (en) 2011-11-01

Similar Documents

Publication Publication Date Title
US10338722B2 (en) Tactile touch sensor system and method
CN104769528B (en) Touch-surface component with linkage
US9064654B2 (en) Method of manufacturing an input device
TW543055B (en) Slide switch
US9870066B2 (en) Method of manufacturing an input device
US9040851B2 (en) Keycap assembly with an interactive spring mechanism
CN107077240B (en) Haptic touch sensor system and method
CN105308539B (en) Pressing movement on capacitance detecting magnetic keyboard button and the method and apparatus for whetheing there is finger
JP6372303B2 (en) Function expansion device for information equipment
US10845988B2 (en) Handwriting board with fixing member to fix writing paper
US7097511B1 (en) Structure for SIM card assembly and disassembly
TW201028298A (en) Braille device
KR20150013439A (en) Input device manufacture
CN106229192A (en) Button and keyboard thereof
CN201549410U (en) Keyboard pressing improved structure
US20200219415A1 (en) Braille Writing Device
US20080164132A1 (en) Button input device using E-paper
US20130183641A1 (en) Braille reading-writing device
CN106298327A (en) Button and keyboard thereof
CN101651873A (en) Subscriber identity module fixing device
TW200805409A (en) Dual-axis balance key structure
JP5053419B2 (en) Seat switch
US20130098748A1 (en) Multi-way button structure
KR20140115195A (en) Input device for mobile terminal
CN215883135U (en) Lattice drawing device

Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees