CN108749400A - Posture-correcting pen - Google Patents
Posture-correcting pen Download PDFInfo
- Publication number
- CN108749400A CN108749400A CN201810790346.4A CN201810790346A CN108749400A CN 108749400 A CN108749400 A CN 108749400A CN 201810790346 A CN201810790346 A CN 201810790346A CN 108749400 A CN108749400 A CN 108749400A
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- China
- Prior art keywords
- pen
- inclined plane
- face
- block
- sliding shoe
- Prior art date
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- Granted
Links
- 210000003811 finger Anatomy 0.000 claims description 47
- 210000003813 thumb Anatomy 0.000 claims description 17
- 238000006073 displacement reaction Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008092 positive effect Effects 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- 210000001015 abdomen Anatomy 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K23/00—Holders or connectors for writing implements; Means for protecting the writing-points
- B43K23/008—Holders comprising finger grips
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The invention discloses a kind of posture-correcting pen, double inclined plane sliding shoe is placed in pen point casing, and front and rear end is ramp structure, and the ramp structure of core bar end is placed on double inclined plane sliding shoe front end face, and double inclined plane sliding shoe rear end face pushes down push rod front end face；Double helix skewed slot moving block lateral wall is equipped with two spiral chutes, and double helix skewed slot moving block is set on push rod, and the upper and lower block that holds is each passed through the sliding block that the connection of pen point casing side wall is located in spiral chute；Opposite pressing is upper and lower simultaneously holds block, and two sliding blocks is made to be moved in spiral chute, to make double helix skewed slot moving block travel forward, so that push rod is passed through double inclined plane slipper push pen core and stretches out outside pen point casing.Due to the gripping block for needing to keep holding penholder, there is positive action for the poor teenager that restrains oneself；With self-sustaining structure, pen tip will not be subjected to displacement because of outer force effect when writing, and pen tip is stablized, and writing quality is protected.
Description
Technical field
The present invention relates to a kind of structure, specifically a kind of posture-correcting pen belongs to technical field of office stationery.
Background technology
Nowadays, it writes a good fist more and more important, because it can leave good impression to others.Word has been write, has been slapped
It is very crucial to hold correct pen holding posture.Correct pen holding posture is should be：Thumb and the natural two sections of bendings of index finger, are placed in penholder
Upside, middle finger slightly firmly hold penholder upwards；Thumb outside of belly side contacts penholder to the right, index finger tip touch penholder, middle finger with
Nail root props up penholder with high position, and thumb is slightly above index finger, about 3 centimetres away from pen tip of thumb.Although inappropriate
Pen holding posture can also write out word, but have different degrees of influence to the health of writer.Do not occur also currently on the market
The posture-correcting pen of a pure mechanic structure that can constrain pen holding posture.
Invention content
The purpose of the present invention is in view of the above shortcomings of the prior art, provide a kind of can constraining for pure mechanic structure to hold a pen
The posture-correcting pen of posture.
Technical scheme is as follows：
A kind of posture-correcting pen, characterized in that including the pen cap, pen core, push rod, double inclined plane sliding shoe, double helix skewed slot moving block,
Upper gripping block, lower gripping block, the pen cap are formed by connecting by pen point casing, pen container set, the pen core by pen tip, core bar connection and
At the double inclined plane sliding shoe is placed in pen point casing, and front end face, rear end face are ramp structure；
The push rod is placed in pen container set, and front end face is the ramp structure to match with double inclined plane sliding shoe rear end face；
The pen core is placed in pen point casing cavity leading portion, and the core bar end of pen core is the inclined-plane knot to match with double inclined plane sliding shoe front end face
The ramp structure of structure, core bar is placed on the front end face of double inclined plane sliding shoe, and the rear end face of the double inclined plane sliding shoe pushes down push rod
Front end face；
The double helix skewed slot moving block is hollow cylindrical structure, and it is oblique that lateral wall is equipped with two symmetrically arranged spirals
The depth of slot, the spiral chute becomes larger to the back-end from front end, and is respectively equipped with sliding block in two spiral chutes；The double helix
Skewed slot moving block is set on push rod, and can be circumferentially rotated relative to push rod, and the push rod leading portion, which is equipped with a circle, prevents double helix
The limit protrusion that skewed slot moving block skids off；
It is described it is upper hold block, the lower block that holds is respectively arranged in the relative position of pen point casing lateral wall, and upper gripping block, under hold
It holds block and is each passed through pen point casing side wall two sliding blocks of connection；Block, lower gripping block are held in opposite pressing simultaneously, makes two sliding blocks in spiral
Movement, to make double helix skewed slot moving block travel forward, then makes push rod pass through double inclined plane slipper push pen core and stretches in skewed slot
Go out outside pen point casing.
Further, resetting spring is equipped between the pen point casing inner wall and double inclined plane sliding shoe, which is placed in
Above the ramp structure of push rod, and perpendicular to the central axes of pen point casing.
Further, the pen point casing inner wall is in the guide rail for being equipped with two protrusions with double inclined plane sliding shoe contact position, two guide rails
It is oppositely arranged, and is arranged in parallel with resetting spring；The double inclined plane sliding shoe with two guide rail contacts at be respectively equipped with groove, institute
Guide rail is stated to be placed in corresponding groove.
Further, in the double inclined plane sliding shoe, the angles of front end face and pen point casing central axes be more than thereafter end face with
The angle of pen point casing central axes；The ramp structure of the core bar is equal to double inclined plane sliding shoe front end with the angle of pen point casing central axes
The angle in face and pen point casing central axes, the ramp structure of the push rod are equal to double inclined plane sliding shoe with the angle of pen point casing central axes
The angle of rear end face and pen point casing central axes.
Further, it is respectively equipped with replaceable spring between the sliding block and upper gripping block, lower gripping block.
Further, the sliding block is chondritic, and chondritic and the end rolling of replaceable spring connect, replaceable
The other end of spring is fixedly connected with upper gripping block or lower gripping block.
Further, the core bar end of the pen core is connect with the front end face of double inclined plane sliding shoe by magnetic sheet.
Further, the upper outer surface for holding block is equipped with the finger recess to match with thumb, index finger, under described
The outer surface for holding block is equipped with the finger recess to match with middle finger.
Further, the diameter of the chondritic is more than the distance between two sides at the top of spiral chute.
Further, the pen point casing is connected by a snap with pen container set.
In the present invention, self-sustaining structure is formed by push rod, double inclined plane sliding shoe, resetting spring, guide rail, by replaceable bullet
Spring, spin (sliding block), double helix skewed slot moving block composition squeeze and press out structure, and block is held by replaceable spring, thumb-index finger
(above holding block) and middle finger hold block (lower to hold block) replaceable grip device of composition.
The present invention is when in use：
Thumb, index finger close up, and are being held together with middle finger at pen tip one-inch position, with thumb and index finger
It pinches thumb-index finger and holds block (thumb and index finger are placed in corresponding finger recess), middle finger holds middle finger and holds block, and phase
To clamping, holds block and pass through replaceable spring (according to different age people, selecting the replaceable spring of different spring compression forces)
Connect spin；
It is shallower close to spiral chute at pen tip, it is deeper close to spiral chute at tail, when pressing gripping block in opposite directions, spin
It is rolled from shallow to depth in spiral chute so that double skewed slots moving block is spinned feed motion to pen tip direction, and promotion pushes away
Bar is moved to pen tip direction；
The inclined-plane (i.e. the ramp structure of push rod front end) of double helix skewed slot moving block front end, passes through bevel friction (double inclined plane
Sliding is generated between the rear end face and push rod front end face of sliding shoe, sliding generates friction) so that double inclined plane sliding shoe is carried out along guide rail
It moves (along the central axes direction displacement of resetting spring), resetting spring is compressed；Double inclined plane sliding shoe front end face passes through magnetic sheet
It is connect with replaceable pen core, equally, sliding is generated between double inclined plane sliding shoe front end face and core bar end, front end face is subjected to displacement
(along the direction displacement of resetting spring central axes) causes pen core movement to stretch out outside pen point casing；
The design of above structure, user is in writing process, it is necessary to and it keeps thumb, index finger to press and holds block, in
Finger holds lower gripping block, and such pen core could keep stretching out outside pen point casing and be write, i.e., in writing process, user is always
Keep correct holding posture：Thumb, index finger close up always on the upside of penholder, and middle finger holds penholder, and finger distance always
Pen tip one-inch or so (holds block apart from pen cap head one-inch or so)；
When pen holding posture is incorrect or unclamps gripping block, resetting spring will force double inclined plane sliding shoe to reset, double
The rear end face of inclined-plane sliding shoe moves after forcing push rod, and ball also comes back to spiral chute front end, the front end of double inclined plane sliding shoe
Face is withdrawn pen core in pen point casing by magnetic sheet.
The configuration of the present invention is simple is reasonable, manufactures and is easy, relative to the electronics posture-correcting pen of sensor-chip controls, originally
The posture-correcting pen of invention uses pure mechanic structure, and low cost is radiationless；Accessory is adjustable in groups, is suitble to each age group crowd；Due to needing
The gripping block for keeping holding penholder has positive action for the poor teenager that restrains oneself；With self-sustaining structure, write
Pen tip will not be subjected to displacement because of outer force effect when word, and pen tip is stablized, and writing quality is protected.
Description of the drawings
Fig. 1 is posture-correcting pen external structure schematic diagram of the present invention；
Fig. 2 is the axial sectional view of Fig. 1；
Fig. 3 is pen point casing inside enlarged drawing in Fig. 2；
Fig. 4 is the structural schematic diagram of the double helix skewed slot moving block of posture-correcting pen of the present invention；
Fig. 5 is the structural schematic diagram of the double inclined plane sliding shoe of posture-correcting pen of the present invention；
Fig. 6 is the sectional view at double helix skewed slot moving block in Fig. 1；
Fig. 7 is the sectional view at double inclined plane sliding shoe in Fig. 1；
In figure：1 pen cap, 3 push rods, 4 double inclined plane sliding shoes, 5 double helix skewed slot moving blocks, is held under block, 7 on 62 pen cores
Hold block, 8 sliding blocks, 9 resetting springs, 10 replaceable springs, 1-1 pen point casings, 1-2 pen containers set, 1-3 guide rails, 2-1 pen tips, 2-2 cores
Bar, 3-1 push rods front end face, 3-2 limit protrusions, the front end face of 4-1 double inclined plane sliding shoes, 4-2 double inclined plane sliding shoes rear end face,
4-3 grooves, 5-1 spiral chutes.
Specific implementation mode
As shown, the posture-correcting pen of the present invention, including the pen cap 1, pen core 2, push rod 3, double inclined plane sliding shoe 4, double helix are oblique
Slot moving block 5, thumb-index finger hold block 6, middle finger holds block 7, and the pen cap is connected by a snap by pen point casing 1-1, pen container set 1-2
It forms, pen core is formed by connecting by pen tip 2-1, core bar 2-2.
The outer surface that thumb-index finger holds block is equipped with the finger recess to match with thumb, index finger, thumb, index finger
Finger recess between it is convex, two finger recesses and convex make the gripping block outer surface be in herringbone, convenient for thumb, food
Finger, which pinches, holds block to squeeze the gripping block, and the outer surface that middle finger holds block is equipped with the finger recess to match with middle finger.Greatly
The finger recess of thumb matches with thumb outside of belly position to the right, and finger recess and the index finger tip position of index finger match,
And thumb finger recess is slightly above the finger recess of index finger, finger recess and the middle finger and nail root junction phase of middle finger
Match, holds block apart from about 3 centimetres of pen tip (2.9-3.6cm).
Double inclined plane sliding shoe is placed in pen point casing, and front end face 4-1, rear end face 4-2 are ramp structure, and push rod is placed in pen container
In set, front end face 3-1 is the ramp structure to match with double inclined plane sliding shoe rear end face.Before pen core is placed in pen point casing cavity
Section, the core bar end of pen core be the ramp structure to match with double inclined plane sliding shoe front end face, and the ramp structure of core bar is placed in pair
On the front end face of inclined-plane sliding shoe, and the core bar end of pen core is connect with the front end face of double inclined plane sliding shoe by magnetic sheet, diclinic
The rear end face of face sliding shoe pushes down the front end face of push rod.
In double inclined plane sliding shoe, the angle of front end face and pen point casing central axes is more than end face thereafter and pen point casing central axes
Angle；The ramp structure of core bar is equal to double inclined plane sliding shoe front end face and pen point casing central axes with the angle of pen point casing central axes
Angle, the ramp structure of push rod are equal to double inclined plane sliding shoe rear end face and pen point casing central axes with the angle of pen point casing central axes
(inclined-plane of double inclined plane sliding shoe front end face is towards the inclined-plane direction with rear end face on the contrary, the end of pen core core bar is oblique for angle
Facing towards the inclined-plane direction with double inclined plane sliding shoe front end face on the contrary, the inclined-plane of push rod front end face is slided towards with double inclined plane
The inclined-plane direction of block rear end face is opposite).
Resetting spring 9 is equipped between pen point casing inner wall and double inclined plane sliding shoe, which is placed in the inclined-plane knot of push rod
Above structure, and perpendicular to the central axes of pen point casing.One end of resetting spring is fixed in the mounting post of pen point casing inner wall, the other end
It is placed in the mounting hole of double inclined plane sliding shoe lateral wall.Pen point casing inner wall is being equipped with two protrusions with double inclined plane sliding shoe contact position
Guide rail 1-3, two guide rails are oppositely arranged, and are arranged in parallel with resetting spring；Double inclined plane sliding shoe with two guide rail contacts at distinguish
Equipped with groove 4-3, guide rail is placed in corresponding groove, and double inclined plane sliding shoe is moved along guide rail (i.e. resetting spring zoom direction).
Double helix skewed slot moving block is hollow cylindrical structure, and lateral wall is equipped with two symmetrically arranged spiral chute 5-
1, the depth of the spiral chute becomes larger to the back-end from front end, and sliding block 8 is respectively equipped in two spiral chutes, spiral chute
Both ends are respectively equipped with the block that anti-limited slip block skids off.
Double helix skewed slot moving block is set on push rod, and can be circumferentially rotated relative to push rod, and push rod leading portion is equipped with a circle
The limit protrusion 3-2 for preventing double helix skewed slot moving block from skidding off.Upper gripping block, lower gripping block are respectively arranged in pen point casing lateral wall
Relative position, and upper gripping block, lower gripping block be each passed through pen point casing side wall connect two sliding blocks.Sliding block and upper gripping block, under
Replaceable spring 10 is respectively equipped between gripping block, sliding block is chondritic, and the diameter of chondritic is more than at the top of spiral chute
The distance between two sides can block ball, prevent it from skidding off skewed slot.The end of chondritic and replaceable spring, which rolls, to be connected
It connects, the other end of replaceable spring is fixedly connected with upper gripping block or lower gripping block.
Block, lower gripping block are held in opposite pressing simultaneously, makes the sliding blocks of two chondritics in spiral chute from shallow to depth
It rolls so that double helix skewed slot moving block is spinned feed motion to pen tip direction, and catch bar is pushed to be moved to pen tip direction.
The rear end surface roughness of double inclined plane sliding shoe is smaller, and the front end surface roughness contacted with pen core should make larger.
The inclined-plane of double inclined plane sliding shoe rear end face is larger, the coefficient of sliding friction between double inclined plane sliding shoe rear end face and push rod front end face
For μ, double inclined plane sliding shoe rear end face and the angle of penholder axis are θ2, tan θ need to be met2>μ so that double inclined plane sliding shoe and push away
It moves smooth between lever, is not influenced by inclined-plane self-locking.The inclined-plane of double inclined plane sliding shoe front end face is smaller, double inclined plane sliding shoe
The coefficient of sliding friction between front end face and core bar rear end face is μ1, double inclined plane sliding shoe front end face and the angle of penholder axis are
θ1, tan θ need to be met1< μ1So that move smooth when double inclined plane sliding shoe pushing pen refill, but pen tip is when by outer force effect, by
It is influenced in by inclined-plane self-locking, the movement of position will not occur for double inclined plane sliding shoe, ensure that pen tip is not during writing
External force influence can be received to move, ensure that the stability of writing.
It sets pen tip and stretches maximum distance as l, double inclined plane sliding shoe is with Stylus contact face angle degree (i.e. before double inclined plane sliding shoe
The angle of end face and penholder axis) it is θ1, the maximum sliding distance between double inclined plane sliding shoe and push rod is l1=ltan θ1, double
Inclined-plane sliding shoe is θ with catch bar contact surface angle (i.e. the angle of double inclined plane sliding shoe rear end face and penholder axis)2, push rod is most
Big actuating length is l3=l1/tanθ2。
Spiral chute maximum gauge (i.e. most shallow slot depths) is rmax, minimum diameter (i.e. most deep trouth depths) is rmin, spherical
The a diameter of r of sliding block of structure, sliding block should be corresponding with position at spiral chute maximum gauge when initial position, at this point, spiral chute
Angle is between penholder normal planeSpiral chute on double helix skewed slot moving block
Lift angle is
Claims (10)
1. a kind of posture-correcting pen, characterized in that including the pen cap（1）, pen core（2）, push rod（3）, double inclined plane sliding shoe（4）, double helix
Skewed slot moving block（5）, upper gripping block（6）, lower gripping block（7）, the pen cap is by pen point casing（1-1）, pen container set（1-2）Connection and
At the pen core is by pen tip（2-1）, core bar（2-2）It is formed by connecting, the double inclined plane sliding shoe is placed in pen point casing, front end
Face（4-1）, rear end face（4-2）For ramp structure；
The push rod is placed in pen container set, front end face（3-1）For the ramp structure to match with double inclined plane sliding shoe rear end face；
The pen core is placed in pen point casing cavity leading portion, and the core bar end of pen core is the inclined-plane knot to match with double inclined plane sliding shoe front end face
The ramp structure of structure, core bar is placed on the front end face of double inclined plane sliding shoe, and the rear end face of the double inclined plane sliding shoe resists push rod
Front end face；
The double helix skewed slot moving block is hollow cylindrical structure, and lateral wall is equipped with two symmetrically arranged spiral chutes
（5-1）, the depth of the spiral chute becomes larger to the back-end from front end, and is respectively equipped with sliding block in two spiral chutes（8）；It is described
Double helix skewed slot moving block is set on push rod, and can be circumferentially rotated relative to push rod, and the push rod leading portion is equipped with a circle and prevents
The limit protrusion that double helix skewed slot moving block skids off（3-2）；
The upper gripping block, the lower relative position for holding block and being respectively arranged in pen point casing lateral wall, and upper gripping block, lower gripping block
It is each passed through pen point casing side wall and connects two sliding blocks；Block, lower gripping block are held in opposite pressing simultaneously, makes two sliding blocks in spiral chute
Interior movement then makes push rod pass through double inclined plane slipper push pen core and stretches out pen to make double helix skewed slot moving block travel forward
Outside headgear.
2. posture-correcting pen according to claim 1, characterized in that be equipped between the pen point casing inner wall and double inclined plane sliding shoe
Resetting spring（9）, which is placed in above the ramp structure of push rod, and perpendicular to the central axes of pen point casing.
3. posture-correcting pen according to claim 2, characterized in that the pen point casing inner wall with double inclined plane sliding shoe contact position
Guide rail equipped with two protrusions（1-3）, two guide rails are oppositely arranged, and are arranged in parallel with resetting spring；The double inclined plane sliding shoe exists
It is respectively equipped with groove at two guide rail contacts（4-3）, the guide rail is placed in corresponding groove.
4. posture-correcting pen according to claim 1, characterized in that in the double inclined plane sliding shoe, in front end face and pen point casing
The angle of axis is more than the angle of end face and pen point casing central axes thereafter；The ramp structure of the core bar and pen point casing central axes
Angle is equal to the angle of double inclined plane sliding shoe front end face and pen point casing central axes, ramp structure and the pen point casing axis of the push rod
The angle of line is equal to the angle of double inclined plane sliding shoe rear end face and pen point casing central axes.
5. posture-correcting pen according to claim 1, characterized in that between the sliding block and upper gripping block, lower gripping block respectively
Equipped with replaceable spring（10）.
6. posture-correcting pen according to claim 5, characterized in that the sliding block be chondritic, chondritic with it is replaceable
The end of spring rolls connection, and the other end of replaceable spring is fixedly connected with upper gripping block or lower gripping block.
7. posture-correcting pen according to claim 1, characterized in that before the core bar end of the pen core and double inclined plane sliding shoe
End face is connected by magnetic sheet.
8. posture-correcting pen according to claim 1, characterized in that the upper outer surface for holding block is equipped with and thumb, food
Refer to the finger recess to match, the lower outer surface for holding block is equipped with the finger recess to match with middle finger.
9. posture-correcting pen according to claim 6, characterized in that the diameter of the chondritic is more than two at the top of spiral chute
The distance between side.
10. posture-correcting pen according to claim 1, characterized in that the pen point casing is connected by a snap with pen container set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790346.4A CN108749400B (en) | 2018-07-18 | 2018-07-18 | Posture correcting pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790346.4A CN108749400B (en) | 2018-07-18 | 2018-07-18 | Posture correcting pen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108749400A true CN108749400A (en) | 2018-11-06 |
| CN108749400B CN108749400B (en) | 2024-01-02 |
Family
ID=63970250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810790346.4A Active CN108749400B (en) | 2018-07-18 | 2018-07-18 | Posture correcting pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108749400B (en) |
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| CN201201427Y (en) * | 2008-03-27 | 2009-03-04 | 胡海明 | Posture correcting intelligent pen |
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| CN202200710U (en) * | 2011-07-25 | 2012-04-25 | 曾令旗 | New-style magnetized pen grip |
| CN203267549U (en) * | 2013-05-17 | 2013-11-06 | 陆金昊 | Sign pen |
| CN104417180A (en) * | 2013-09-02 | 2015-03-18 | 陈孟亮 | Pen holding posture correcting pen |
| WO2015180405A1 (en) * | 2014-05-30 | 2015-12-03 | 刘保伸 | Pen holding structure |
| CN105904879A (en) * | 2016-05-09 | 2016-08-31 | 淄博职业学院 | Intelligent pencil capable of automatically controlling lead discharging and lead discharging length |
| CN209096340U (en) * | 2018-07-18 | 2019-07-12 | 扬州工业职业技术学院 | Posture-correcting pen |
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2018
- 2018-07-18 CN CN201810790346.4A patent/CN108749400B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003063193A (en) * | 2001-08-28 | 2003-03-05 | Zebra Pen Corp | Retractable writing utensil |
| US6609846B1 (en) * | 2002-04-19 | 2003-08-26 | Longreen Marketing Ltd. | Retractable writing instrument |
| CN2620632Y (en) * | 2003-03-13 | 2004-06-16 | 沈怿皓 | Automatic double-protective pen |
| KR20050071745A (en) * | 2004-01-02 | 2005-07-08 | 신정빈 | Holder for correcting carriage when using writing implement |
| CN101318431A (en) * | 2007-05-16 | 2008-12-10 | 黄正忠 | Pen for normalizing posture |
| CN201201427Y (en) * | 2008-03-27 | 2009-03-04 | 胡海明 | Posture correcting intelligent pen |
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| CN202200710U (en) * | 2011-07-25 | 2012-04-25 | 曾令旗 | New-style magnetized pen grip |
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| CN104417180A (en) * | 2013-09-02 | 2015-03-18 | 陈孟亮 | Pen holding posture correcting pen |
| WO2015180405A1 (en) * | 2014-05-30 | 2015-12-03 | 刘保伸 | Pen holding structure |
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| CN209096340U (en) * | 2018-07-18 | 2019-07-12 | 扬州工业职业技术学院 | Posture-correcting pen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108749400B (en) | 2024-01-02 |
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