Writing tool
By designing a core mechanism and a core shrinkage mechanism in the writing tool, and controlling the expansion and storage of the refill by the movement of the press body, the problems of head damage and ink pollution after the use of a neutral pen are solved, and the effects of automatic storage and long-term use are achieved.
Patent Information
- Application Number
- CN202420629959.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-03-29
AI Technical Summary
The existing neutral pen is likely to forget the core shrinkage or cover cap after use, resulting in damage to the pen tip, and the pen in the core state is likely to cause ink contamination when put into the storage device.
A writing tool is designed, using a core-output mechanism and a core-reducing mechanism to control the expansion and storage of the refill by moving the moving body, ensuring that the refill is automatically retracted when not in use and avoid ink contamination.
It effectively avoids the problems of pen tip damage and ink pollution, improves user experience, and ensures the long-term use of the pen.
Smart Images
Figure CN222645676U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of stationery products, and in particular to a writing tool. Background Art
[0002] At present, most gel pens on the market are push-type or pull-out type. Push-type gel pens generally have a pushable pen head. By pressing the button on the pen shaft, the pen head can be controlled to retract, making it convenient to write or draw. Pull-out gel pens, on the other hand, have a rotatable or removable pen head cap. When using, you need to open the pen head cap first, then align the pen tip with the position where you need to write, and press the pen head hard to start writing.
[0003] After using a pen, consumers may forget to press the retractor button or forget to put the cap back on. If the pen is dropped from a height, the pen tip will usually fall to the ground first, which may damage the pen tip and make it impossible to write, resulting in waste. If the pen is placed in a storage device with the retracted pen tip in place, the pen tip will come into contact with the inner wall of the storage device, causing ink to contaminate the inner wall of the storage device, which will also cause great inconvenience to consumers. Utility Model Content
[0004] In view of this, the purpose of this application is to provide a writing tool to solve the above problems.
[0005] In order to solve the above technical problems, the present application adopts the following technical solutions: a writing tool, comprising: a pen housing extending in the axial direction and a refill received in the pen housing; a pressing body, which is supported in the pen housing so as to move forward and backward in the axial direction within the range of an initial position and a first position relative to the rear side of the pen housing, and the end of the pressing body is exposed outside the pen housing for axial pressing operation; a core-ejecting mechanism, the front end of the core-ejecting mechanism abuts against the refill, and when the pressing body moves from the initial position to the first position, the pressing body pushes the core-ejecting mechanism to project the refill from the front end of the pen housing and is in a locked state; the writing tool also includes: a core-retracting mechanism, when the core-retracting mechanism moves from the second position to the third position, the core-retracting mechanism moves away from the core-ejecting mechanism, breaks away from the abutment against the core-ejecting mechanism, and releases the locked state; when the core-ejecting mechanism is in the locked state, the pressing body moves again to the first position to release the locked state of the core-ejecting mechanism and retracts the refill into the pen housing; or, when the writing tool is not in a normal use state, the core-retracting mechanism moves from the second position to the third position to release the locked state of the core-ejecting mechanism and retracts the refill into the pen housing.
[0006] Furthermore, when the writing tool is not in normal use, the angle between the central axis of the writing tool and the plumb line is less than or equal to zero degrees.
[0007] Furthermore, the writing tool also includes: a sliding member, which is movably arranged inside the core output mechanism within the range of a fourth position and a fifth position. When the writing tool is in a normal use state, the sliding member is located at the fourth position. When the writing tool is not in a normal use state, the sliding member moves to the fifth position. When the sliding member is in the fifth position, the sliding member acts on the core shrinking mechanism to move it from the second position to the third position, thereby releasing the core output mechanism from a locked state.
[0008] Furthermore, when the writing tool is in a normal use state, the sliding member is located at the fourth position due to the influence of gravity.
[0009] Furthermore, the core shrinking mechanism includes: a first fine-motion block and a second fine-motion block, which are symmetrically arranged along the axis of the pen housing. When the sliding member slides to the fifth position, the sliding member pushes the first fine-motion block and the second fine-motion block to move to the third position, away from the core output mechanism, so that it is disengaged from the abutment against the core output mechanism, thereby releasing the locking state of the core output mechanism.
[0010] Furthermore, the sides of the first micro-motion block and the second micro-motion block are provided with a snap structure. When the writing tool is in normal use, the first micro-motion block and the second micro-motion block are abutted against the core-out mechanism through the snap structure, so that the core-out mechanism is in a locked state; when the writing tool is not in normal use, the sliding piece moves to the fifth position, squeezing the first micro-motion block and the second micro-motion block, so that the snap structure disengages from the core-out mechanism, thereby releasing the locked state of the core-out mechanism.
[0011] Furthermore, the writing tool also includes: a reset member, which is assembled in the core shrinking mechanism; when the core shrinking mechanism is in the second position, the sliding member does not act on the core shrinking mechanism, and the reset member acts on the core shrinking mechanism in the direction close to the inside of the core output mechanism, and abuts against the core output mechanism; when the core shrinking mechanism is in the third position, the sliding member acts on the core shrinking mechanism, and the reset member acts on the core shrinking mechanism in the direction away from the inside of the core output mechanism, disengages from the abutment against the core output mechanism, and releases the locked state.
[0012] Furthermore, a blind hole is provided on the outer surface of the core shrinking mechanism, and the blind hole is used to place a reset member, and the reset member acts on the bottom of the blind hole and the core discharging mechanism respectively.
[0013] Furthermore, the writing tool also includes a fixing part, which is assembled on the core-out mechanism, and the resetting part acts on the core-out mechanism from the fixing part.
[0014] Furthermore, the writing tool also includes: an attraction component, which can generate a force with the sliding component, and when the writing tool is in normal use, no force is generated between the sliding component and the attraction component; when the writing tool is not in normal use, the sliding component moves into the influence area of the attraction component, and a force is generated between the attraction component and the sliding component to guide the sliding component to move to the fifth position and be fixed at the fifth position.
[0015] Furthermore, a magnetic force is generated between the attraction component and the sliding member.
[0016] Furthermore, the core-out mechanism comprises: a core-pressing device, the middle section of which is provided with symmetrical inclined through-slots, the opening size of which is smaller than the sliding member, and the sliding member is assembled into the core-pressing device from the top of the core-pressing device.
[0017] Furthermore, the writing tool also includes: a guide rail, which is sleeved on the outside of the core output mechanism, and a plurality of hanging pieces are provided at one end of the guide rail away from the pressing body, and a through groove is provided between each hanging piece; a lining, which is assembled on the outside of the guide rail, and a groove with a structure corresponding to the hanging piece is provided on the inner surface close to the guide rail, and a convex surface is provided on the inner surface of the lining corresponding to the through groove, and the convex surface is used to guide the movement of the guide rail and the lining; when the pressing body moves from the initial position to the first position, the core output mechanism is abutted against the through groove, so that the core output mechanism is in a locked state; when the writing tool is not in normal use, the core shrinking mechanism moves to the third position, so that the core output mechanism disengages from the current through groove, slides along the hanging piece to another through groove, and releases the locked state of the core output mechanism.
[0018] Furthermore, the liner is provided with a liner opening, the guide rail is provided with a guide rail opening, a plurality of toothed steps are provided inside the guide rail opening, and the core shrinking mechanism is assembled in the liner opening and the guide rail opening through the toothed steps.
[0019] Furthermore, a limiting structure corresponding to the lining is provided on one side of the guide rail close to the lining, and the attraction component is self-limiting structure, passes through the lining and is assembled into the guide rail opening to generate a force between the sliding component.
[0020] Furthermore, the writing tool also includes: a rotating wheel having an opening, the bottom of the opening abutting against the top of the pen core, and a plurality of convex points on the outer surface close to the pen core, which are used to abut against the through groove.
[0021] Furthermore, the suspension piece is a sloped suspension piece, and the protrusion is an inclined protrusion. When the pressing body moves from the initial position to the first position, the rotating wheel advances along the sloped suspension piece through the inclined protrusion, forming abutment with the sloped suspension piece and the convex surface, and the pen core protrudes from the front end of the pen housing; when the writing tool is not in normal use, the lining slides to the rear side of the pen housing to release the abutment formed with the sloped suspension piece and the convex surface, and retract the pen core into the pen housing.
[0022] Furthermore, the pen shell also includes: a pen cover, which has a pen hole at the front end for the pen core to protrude from the front end; a pen shaft, which is connected to the end of the pen cover away from the pen hole and internally accommodates a pressing body, a core-out mechanism and a core-retracting mechanism; a boss is provided inside the pen cover, and the writing tool also includes an elastic member, which acts on the boss inside the pen cover and the front end of the pen core respectively.
[0023] It can be seen from the above technical solution that the advantages and positive effects of the writing tool proposed in this application are:
[0024] The present application takes into account that when users are not using writing tools, they usually place the writing tools on a horizontal surface such as a table, or turn the writing tools over to play with them. Therefore, by setting the core retracting mechanism, when the core output mechanism is in a locked state, it moves from the second position to the third position, away from the core output mechanism, so as to break away from the abutment against the core output mechanism, thereby releasing the locked state of the core output mechanism, and realizing the automatic retraction of the pen core of the pressing tool into the pen housing, thereby improving the user experience of using the writing tool and preventing the ink of the pen core from contaminating other objects. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The above content of the present application and the following specific implementation methods will be better understood when read in conjunction with the accompanying drawings. It should be noted that the accompanying drawings are only examples of the technical solutions claimed for protection.
[0026] Figure 1 is a cross-sectional view of a writing tool provided in an embodiment of the present application;
[0027] Figure 2 is a cross-sectional view of a pen cover provided in an embodiment of the present application;
[0028] Figure 3 is a three-dimensional diagram of a guide rail provided in an embodiment of the present application;
[0029] Figure 4 This is a first perspective view of the guide rail provided in an embodiment of the present application;
[0030] Figure 5 is a second viewing angle diagram of the guide rail provided in an embodiment of the present application;
[0031] Figure 6 is a three-dimensional diagram of the liner provided in the embodiment of the present application;
[0032] Figure 7 It is a schematic diagram of the assembly of the liner provided in the embodiment of the present application;
[0033] Figure 8 is a schematic diagram of the assembly of the attraction component provided in the embodiment of the present application;
[0034] Fig. 9 is a top view of the liner provided in an embodiment of the present application;
[0035] Fig.10 is a first perspective view of an attraction component provided in an embodiment of the present application;
[0036] Fig.11 is a second viewing angle diagram of the attraction component provided in the embodiment of the present application;
[0037] Fig.12 is a first stereoscopic diagram of a first micro-motion block provided in an embodiment of the present application;
[0038] Fig.13 is a second stereoscopic view of the first micro-motion block provided in an embodiment of the present application;
[0039] Fig.14 is a side view of a first micro-motion block provided in an embodiment of the present application;
[0040] Fig.15 is a bottom view of the first micro-motion block provided in an embodiment of the present application;
[0041] Fig.16 is a three-dimensional diagram of a pressing core provided in an embodiment of the present application;
[0042] Fig.17 is a side view of the pressing core provided in an embodiment of the present application;
[0043] Fig.18 is a top view of the pressing core provided in an embodiment of the present application;
[0044] Fig.19 It is a schematic diagram of the assembly of the micro-motion block and the attraction component provided in the embodiment of the present application;
[0045] Fig. 20 is a schematic diagram of the assembly of a sliding member provided in an embodiment of the present application;
[0046] Fig.21 is a first partial cross-sectional view of a writing tool provided in an embodiment of the present application;
[0047] Fig. 22 is a second partial cross-sectional view of the writing tool provided in the embodiment of the present application;
[0048] Fig.23 is a schematic diagram of the assembly of the fixing member provided in the embodiment of the present application;
[0049] Fig.24 This is a third partial cross-sectional view of the writing tool provided in the embodiment of the present application.
[0050] The reference numerals are described as follows: writing tool 10;
[0051] Pen cover 100;
[0052] Telescopic spring 200;
[0053] Refill 300;
[0054] First return spring 400; pressing core 500;
[0055] Inclined through slot 501;
[0056] Rotary wheel 600;
[0057] Sliding member 700;
[0058] A first micro-motion block 800;
[0059] Boss-like structure 801;
[0060] The bottom of the micro-motion block 802;
[0061] Blind hole 803;
[0062] A second micro-motion block 900;
[0063] Pen 1000;
[0064] Guide rail 1100;
[0065] Guide rail opening 1101;
[0066] Bevel suspension piece 1102;
[0067] Raised block 1103;
[0068] Pressing body 1200;
[0069] The second return spring 1300; the first return member 1400; the second return member 1500; the fixing member 1600;
[0070] Attracting component 1700;
[0071] Lining 1800;
[0072] Groove 1801;
[0073] Bump 1802. DETAILED DESCRIPTION
[0074] The detailed features and advantages of the present application are described in detail in the specific implementation manner below, and the content is sufficient to enable any technical personnel in this field to understand the technical content of the present application and implement it accordingly. According to the description, claims and drawings disclosed in this specification, the technical personnel in this field can easily understand the relevant purposes and advantages of the present application.
[0075] It should be noted that in this specification, similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.
[0076] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on this application.
[0077] In order to make the objectives, technical solutions and advantages of the present application clearer, the implementation methods of the present application will be further described in detail below in conjunction with the accompanying drawings.
[0078] The present application provides a writing tool, which may include: a pen housing extending in the axial direction and a pen core received in the pen housing; a pressing body, which is supported in the pen housing so as to move forward and backward in the axial direction within the range of an initial position and a first position at the rear side of the pen housing, and the end of the pressing body is exposed outside the pen housing for axial pressing operation; a core-ejecting mechanism, the front end of the core-ejecting mechanism abuts against the pen core, and when the pressing body moves from the initial position to the first position, the pressing body pushes the core-ejecting mechanism to project the pen core from the front end of the pen housing and is in a locked state; the writing tool also includes: a core-retracting mechanism, when the core-retracting mechanism moves from the second position to the third position, the core-retracting mechanism moves away from the core-ejecting mechanism, breaks away from the abutment against the core-ejecting mechanism, and releases the locked state; when the core-ejecting mechanism is in the locked state, the pressing body moves again to the first position to release the locked state of the core-ejecting mechanism and retracts the pen core into the pen housing; or, when the writing tool is not in a normal use state, the core-retracting mechanism moves from the second position to the third position to release the locked state of the core-ejecting mechanism and retracts the pen core into the pen housing.
[0079] In one embodiment, when the writing tool is not in a normal use state, the angle between the central axis of the writing tool and the plumb line is less than or equal to zero degrees.
[0080] It can be understood that the writing tool is not in normal use state. The writing tool may be placed flat on a horizontal surface such as a table, so that the angle is zero degrees, or the end of the pen core is away from the horizontal plane, while the pressing body is close to the horizontal plane, and the writing tool is tilted, so that the angle is negative.
[0081] In one embodiment, the writing tool also includes: a sliding member, which is movably arranged inside the core output mechanism within the range of a fourth position and a fifth position. When the writing tool is in a normal use state, the sliding member is located at the fourth position. When the writing tool is not in a normal use state, the sliding member moves to the fifth position. When the sliding member is in the fifth position, the sliding member acts on the core shrinking mechanism to move it from the second position to the third position, thereby releasing the core output mechanism from a locked state.
[0082] In one embodiment, when the writing instrument is in a normal use state, the sliding member is located at the fourth position due to the influence of gravity.
[0083] In one embodiment, the sliding member may be a sphere, which cooperates with the cylindrical pen housing and is assembled inside the core-out mechanism to facilitate movement between the fourth position and the fifth position inside the core-out mechanism.
[0084] It can be understood that when the writing tool is in a normal writing state, the sliding member is in the fourth position inside the core-out mechanism under the action of gravity. When the writing tool is in a non-writing state, for example, when it is placed flat on a horizontal surface such as a table, the sliding member moves from the fourth position to the fifth position under the action of the internal structure of the core-out mechanism, squeezing the core-reducing mechanism, so that the core-out mechanism is unlocked.
[0085] In one embodiment, the core shrinking mechanism includes: a first fine-motion block and a second fine-motion block, which are symmetrically arranged along the axis of the pen housing. When the sliding member slides to the fifth position, the sliding member pushes the first fine-motion block and the second fine-motion block to move to the third position, away from the core output mechanism, so that they are disengaged from the abutment against the core output mechanism, thereby releasing the locking state of the core output mechanism.
[0086] In one embodiment, a snap structure is provided on the side surfaces of the first micro-motion block and the second micro-motion block. When the writing tool is in a normal use state, the first micro-motion block and the second micro-motion block abut against the core-out mechanism through the snap structure, so that the core-out mechanism is in a locked state; when the writing tool is not in a normal use state, the sliding member moves to the fifth position, squeezing the first micro-motion block and the second micro-motion block, so that the snap structure disengages from the core-out mechanism, thereby releasing the locked state of the core-out mechanism.
[0087] In one embodiment, the writing tool also includes: a reset member, which is assembled in the core shrinking mechanism; when the core shrinking mechanism is in the second position, the sliding member does not act on the core shrinking mechanism, and the reset member acts on the core shrinking mechanism in a direction close to the inside of the core output mechanism, and abuts against the core output mechanism; when the core shrinking mechanism is in the third position, the sliding member acts on the core shrinking mechanism, and the reset member acts on the core shrinking mechanism in a direction away from the inside of the core output mechanism, disengages from the abutment against the core output mechanism, and releases the locked state.
[0088] In one embodiment, a blind hole is opened on the outer surface of the core shrinking mechanism, and the blind hole is used to place a reset member, and the reset member acts on the bottom of the blind hole and the core output mechanism respectively.
[0089] In one embodiment, the writing tool further comprises a fixing member, which is assembled on the core-out mechanism, and the resetting member acts on the core-out mechanism from the fixing member.
[0090] In one embodiment, the writing tool also includes: an attraction component, which can generate a force with the sliding member, and when the writing tool is in normal use, no force is generated between the sliding member and the attraction component; when the writing tool is not in normal use, the sliding member moves into the influence area of the attraction component, and a force is generated between the attraction component and the sliding member to guide the sliding member to move to the fifth position and be fixed at the fifth position.
[0091] In one embodiment, a magnetic force is generated between the attraction component and the sliding member.
[0092] In one embodiment, the core ejection mechanism includes: a core press, a middle section of which is provided with symmetrical inclined through grooves, the opening size of the inclined through grooves is smaller than a sliding member, and the sliding member is assembled into the core press from the top of the core press.
[0093] In one embodiment, the writing tool also includes: a guide rail, which is sleeved on the outside of the core output mechanism, and a plurality of hanging pieces are provided at one end of the guide rail away from the pressing body, and a through groove is provided between each hanging piece; a lining, which is assembled on the outside of the guide rail, and a groove with a structure corresponding to the hanging piece is provided on the inner surface close to the guide rail, and a convex surface is provided on the inner surface of the lining corresponding to the through groove, and the convex surface is used to guide the movement of the guide rail and the lining; when the pressing body moves from the initial position to the first position, the core output mechanism is abutted against the through groove, so that the core output mechanism is in a locked state; when the writing tool is not in normal use, the core shrinking mechanism moves to the third position, so that the core output mechanism disengages from the current through groove, slides along the hanging piece to another through groove, and releases the locked state of the core output mechanism.
[0094] In one embodiment, the liner is provided with a liner opening, the guide rail is provided with a guide rail opening, a plurality of toothed steps are provided inside the guide rail opening, and the core shrinking mechanism is assembled in the liner opening and the guide rail opening through the toothed steps.
[0095] In one embodiment, a limiting structure corresponding to the lining is provided on one side of the guide rail close to the lining, and the attraction component passes through the limiting structure and is assembled into the guide rail opening to generate a force with the sliding component.
[0096] In one embodiment, the writing tool further includes: a rotating wheel having an opening, the bottom of the opening abutting against the top of the pen core, and the outer surface close to the pen core having a plurality of protrusions, the protrusions being used to abut against the through groove.
[0097] In one embodiment, the suspension piece is a sloped suspension piece, and the protrusion is an inclined protrusion. When the pressing body moves from the initial position to the first position, the rotating wheel advances along the sloped suspension piece through the inclined protrusion, forming abutment with the sloped suspension piece and the convex surface, and the pen core protrudes from the front end of the pen housing; when the writing tool is not in normal use, the lining slides to the rear side of the pen housing to release the abutment formed with the sloped suspension piece and the convex surface, and retract the pen core into the pen housing.
[0098] In one embodiment, the pen housing also includes: a pen cover, which has a pen hole at the front end for the pen core to protrude from the front end; a pen shaft, which is connected to the end of the pen cover away from the pen hole and internally accommodates a pressing body, a core ejection mechanism and a core retraction mechanism; a boss is provided inside the pen cover, and the writing tool also includes an elastic member, which acts on the boss inside the pen cover and the front end of the pen core respectively.
[0099] The entire embodiment will be fully described below.
[0100] like Figure 1 As shown, the writing tool 10 may include a pen cap 100, a telescopic spring 200, a pen core 300, a first return spring 400, a press core 500, a rotating wheel 60, a sliding member 700, a first micro-motion block 800, a second micro-motion block 900, a pen barrel 1000, a guide rail 1100, a pressing body 1200, a second return spring 1300, a first return member 1400, a second return member 1500, a fixing member 1600, an attraction member 1700, and a lining 1800.
[0101] For further information, please refer to Figure 2 One end of the pen cover 100 is provided with a through hole for the pen tip of the pen core 300 to pass through, and the other end of the pen cover 100 is assembled on the pen holder 1000. An inner step of the pen holder 1000 is arranged inside the other end of the pen holder 1000 to which the pen cover 100 is assembled, and one end of the return spring is against the inner step of the pen holder 1000.
[0102] Please refer to Figures 3 to 5 The guide rail 1100 can be assembled at one end of the pen barrel 1000 by means of a ring groove. Two symmetrical guide rail openings 1101 are provided below the ring groove of the guide rail 1100, and a plurality of symmetrical tooth-shaped steps are designed in the guide rail openings 1101. Two raised blocks 1103 are designed in the middle of the two guide rail openings 1100 near the ring groove. Three angled inclined hanging pieces 1102 are designed at the tail end of the guide rail 1100, and there is a through groove of a certain width between each of the two hanging pieces. The angles between the three hanging pieces and the three through grooves are 120° in pairs.
[0103] Please refer to Figures 6 to 8 The liner 1800 has a circular tube appearance and is assembled on the outside of the guide rail 1100. The liner 1800 is designed with two grooves relative to the raised position in the groove of the guide rail 1100. The liner groove 1801 is matched with an oblique angle to facilitate the attraction component 1700 to pass through the liner 1800 and be assembled in the guide rail opening 1101. The liner groove 1801 and the raised block 1103 of the guide rail 1100 constitute a limiting structure of the attraction component 1700, which limits the attraction component 1700 from leaving the writing tool 10.
[0104] Please refer to Fig. 9The other end of the liner 1800 is designed with an inclined surface structure with the same angle as the three hanging pieces of the guide rail 1100. Three protrusions 1802 are designed on the inner wall of the liner 1800, where there is a certain width of through grooves between the two hanging pieces of the guide rail 1100. The function of the protrusions 1802 is to accurately ensure that the liner 1800 and the guide rail 1100 slide in a relative straight line.
[0105] Please also refer to Fig.10 and Fig.11 For example, the attracting member 1700 may be a metal sheet, and the middle of the metal sheet is pressed by the pressing body 1200, forcing the metal sheet to move downward. And because both ends of the metal sheet are mounted on the liner 1800, when the metal sheet is pressed, the liner 1800 also moves in the same direction.
[0106] Please refer to Figures 12 to 15 The first fine motion block 800 and the second fine motion block 900 have the same specifications and are installed in the guide rail opening 1101. Taking the first fine motion block 800 as an example, the bottom of the fine motion block is designed as an arc surface, and a blind hole 803 is provided inside. The blind hole 803 is used to install the reset member. The blind hole 803 of the first fine motion block 800 can be used to install the first reset member 1400, and the blind hole of the second fine motion block 900 can be used to install the second reset member 1500. The side of the bottom surface 802 of the fine motion block is designed with a snap-on structure, such as a boss-like structure 801. The fine motion block is installed in the slot of the liner 1800 through the boss-like structure 801 to cooperate with the toothed step in the rectangular barrel groove of the guide rail 1100.
[0107] Please refer to Figures 16 to 18 The end of the push core 500 away from the ratchet is designed with a ring groove to cooperate with the push body 1200. Two inclined through grooves 501 are designed in the middle. For example, the inclined through groove can be a rectangular through groove, and the width of the through groove is greater than the width of the arc-shaped design at the bottom of the micro-motion block. The inclined through groove is designed with two closing ends, which are used to prevent the sliding member 700 assembled into the inside of the push core 500 from coming out from the side of the push core 500.
[0108] Please refer to Fig.19 The attraction component 1700 can pass through the portion exposed outside the through groove. As the pressing body 1200 is pressed, the lining 1800 performs relative movement toward the core outlet when the pressing core 500 does not move, so that the writing tool 10 is in a core outlet state.
[0109] Please refer to Fig. 20 and Fig.21The sliding member 700 can be assembled inside the pressing core 500 from the top of the pressing core 500. The bottom of the pressing core 500 is designed with a closing to prevent the sliding member 700 from falling out of the pressing core 500. Since the inclined through groove designed inside the pressing core 500 has a certain slope, it is convenient for the sliding member 700 to move toward the direction of the attracting component 1700 under the action of the inclined surface when the writing tool 10 is placed flat.
[0110] It can be understood that when the writing tool 10 is in the locked state, the micro-motion block exerts a force in the inner direction of the pressing core 500 under the action of the reset member, so as to abut against the guide rail 1100 and the inner lining 1800, thereby preventing the refill 300 from shrinking from the outside of the pen cover 100 to the inside of the pen cover 100. When the sliding member 700 moves to the attraction component 1700, it exerts an outward force on the first micro-motion block 800 and the second micro-motion block 900, canceling the abutment against the guide rail 1100 and the inner lining 1800, thereby releasing the locked state.
[0111] Please refer to Fig. 22 One end of the second return spring 1300 is against the inner wall of the push body 1200 and is assembled inside the push body 1200, and the other end is against the metal sheet. Its main function is to ensure that the push body 1200 has the same exposed length regardless of whether it is in the core-out or core-retracted state. One end of the first return spring 400 is against the internal step of the pen barrel 1000, and the other end is against the end surface of the liner 1800. Its main function is to assist the liner 1800 to move in the axial direction.
[0112] Please refer to Fig.23 and Fig.24 The fixing member 1600 can be assembled on the lining 1800 to abut against the reset member inside the micro-motion block.
[0113] It can be understood that when the pressing body 1200 is pressed, the pressing body 1200 is driven to move downward, and the closing of the inner wall of the pressing core 500 drives the sliding member 700 to move downward. When the sliding member 700 escapes the mutual attraction of the attracting member 1700, the sliding member 700 performs free fall and falls to the bottom of the inner wall of the pressing core 500. The pressing core 500 continues to move downward, forcing the attracting member 1700 to move downward. Since the attracting member 1700 is installed on the lining 1800, the lining 1800 also moves in the same direction. After the micro-motion block moves down a short distance, under the action of the first reset member 1400 and the second reset member 1500, the small bosses of the two micro-motion blocks are stuck on the toothed bosses of the rectangular slots of the guide rail 1100. The protrusions on the pressing core 500 and the rotating wheel 60 are matched with the width through slots between the hanging pieces of the guide rail 1100, and do not move downward without rotation. When the protrusion of the rotating wheel 60 is out of the wide slot of the hanging piece of the guide rail 1100, the rotating wheel 60 is forced to rotate under the action of the ratchet of the core pressing 500. Since one end of the protrusion of the rotating wheel 60 is inclined, and under the action of the retractable spring 200 of the refill 300, it will rotate a certain angle along the angle of the hanging piece of the guide rail 1100, and slide into the angle formed by the hanging piece of the guide rail 1100 and the angle boss of the liner 1800, and it is in the core-out state.
[0114] Furthermore, there are two ways to return the writing tool 10 provided in the present application. Specifically, the first way is to continue pressing the pressing head to return the writing tool 10, which is well known to those skilled in the art and will not be described in detail here.
[0115] It should be noted that the present application focuses on providing a writing tool 10 that can realize an automatic core shrinking function in scenarios such as when the writing tool 10 is placed horizontally or when the writing tool 10 is not in a writing state. The principle of the core return method at this time is: when the writing tool 10 is placed horizontally, the sliding member 700 moves toward the position of the attraction component 1700 under the action of the inclined surface of the core pressing member 500. When the distance to the attraction component 1700 is getting closer and closer, under the action of the attraction component 1700 and the sliding member 700 attracting each other, the sliding member 700 pushes the micro-motion block to both sides. The boss at the bottom of the micro-motion block is separated from the toothed boss in the rectangular slot of the guide rail 1100. At this time, the micro-motion block is separated from the guide rail 1100, and the lining 1800 moves upward under the action of the first return spring 400 until the end face and the end face of the guide rail 1100 are against each other. At this time, due to the upward movement of the lining 1800, its internal inclined surface structure can no longer form an angle with the hanging piece of the guide rail 1100. At this time, the rotating wheel 60 will continue to slide along the inclined surface of the suspension piece of the guide rail 1100 into the through groove between the suspension pieces. At this time, the pen core 300 completes the core shrinking action under the action of the telescopic spring 200.
[0116] The terms and expressions used herein are for descriptive purposes only and the present application should not be limited to these terms and expressions. The use of these terms and expressions does not mean to exclude any equivalent features of the illustrations and descriptions (or parts thereof), and it should be recognized that various modifications that may exist should also be included in the scope of the claims. Other modifications, variations and substitutions may also exist. Accordingly, the claims should be deemed to cover all such equivalents.
[0117] Similarly, it should be pointed out that although the present application has been described with reference to the current specific embodiments, ordinary technicians in this technical field should realize that the above embodiments are only used to illustrate the present application, and various equivalent changes or substitutions may be made without departing from the spirit of the present application. Therefore, as long as the changes and modifications to the above embodiments are within the essential spirit of the present application, they will fall within the scope of the claims of the present application.
Claims
1. A writing tool comprising: A pen housing extending in the axial direction and a pen core received in the pen housing; A pressing body is supported in the pen housing so as to move forward and backward along the axial direction within a range between an initial position and a first position at the rear side of the pen housing, and an end of the pressing body is exposed outside the pen housing for axial pressing operation; A core ejection mechanism, wherein the front end of the core ejection mechanism abuts against the pen core, and when the pressing body moves from the initial position to the first position, the pressing body pushes the core ejection mechanism to cause the pen core to protrude from the front end of the pen housing and be in a locked state; The writing tool further comprises: a core-retracting mechanism, when the core-retracting mechanism moves from the second position to the third position, the core-retracting mechanism moves away from the core-exiting mechanism, breaks away from the abutment against the core-exiting mechanism, and releases the locking state; When the core-ejecting mechanism is in a locked state, the pressing body moves to the first position again and unlocks the core-ejecting mechanism and retracts the pen core into the pen housing; or, when the writing tool is not in normal use, the core-retracting mechanism moves from the second position to the third position, unlocks the core-ejecting mechanism and retracts the pen core into the pen housing.
2. The writing tool according to claim 1, characterized in that: When the writing tool is not in a normal use state, the angle between the central axis of the writing tool and the plumb line is less than or equal to zero degrees.
3. The writing tool according to claim 1, characterized in that: The writing instrument also includes: The sliding member is movably arranged inside the core-out mechanism within the range of a fourth position and a fifth position, When the writing tool is in a normal use state, the sliding member is located at the fourth position, When the writing tool is not in normal use, the sliding member moves to the fifth position. When the sliding member is in the fifth position, the sliding member acts on the core shrinking mechanism to move it from the second position to the third position, so that the core ejecting mechanism is unlocked.
4. The writing tool according to claim 3, characterized in that: When the writing instrument is in a normal use state, the sliding member is located at the fourth position due to the influence of gravity.
5. The writing tool according to claim 3, characterized in that: The core shrinking mechanism comprises: A first fine-motion block and a second fine-motion block, wherein the first fine-motion block and the second fine-motion block are symmetrically arranged along the axis of the pen housing, and when the sliding member slides to the fifth position, the sliding member pushes the first fine-motion block and the second fine-motion block to move to the third position, away from the core-out mechanism, so that the first fine-motion block and the second fine-motion block are separated from the abutment against the core-out mechanism, thereby releasing the locking state of the core-out mechanism.
6. The writing tool according to claim 5, characterized in that: The sides of the first fine-motion block and the second fine-motion block are both provided with buckle structures. When the writing tool is in a normal use state, the first fine-motion block and the second fine-motion block abut against the core-out mechanism through the buckle structure, so that the core-out mechanism is in a locked state; When the writing tool is not in normal use, the sliding member moves to the fifth position, squeezing the first micro-motion block and the second micro-motion block, so that the buckle structure is disengaged from the core-out mechanism, thereby releasing the locking state of the core-out mechanism.
7. The writing tool according to claim 3, characterized in that: The writing instrument also includes: A reset member, assembled in the core shrinking mechanism; When the core shrinking mechanism is in the second position, the sliding member does not act on the core shrinking mechanism, and the resetting member acts on the direction of the core shrinking mechanism approaching the inside of the core ejecting mechanism, abutting against the core ejecting mechanism; When the core shrinking mechanism is in the third position, the sliding member acts on the core shrinking mechanism, and the resetting member acts on the core shrinking mechanism in a direction away from the inside of the core output mechanism, disengaging from the abutment against the core output mechanism, thereby releasing the locking state.
8. The writing tool according to claim 7, characterized in that: A blind hole is provided on the outer surface of the core shrinking mechanism, and the blind hole is used to place the reset member, and the reset member acts on the bottom of the blind hole and the core discharging mechanism respectively.
9. The writing tool according to claim 8, characterized in that: The writing tool further comprises a fixing member, which is assembled on the core-out mechanism, and the resetting member acts on the core-out mechanism from the fixing member.
10. The writing tool according to claim 3, characterized in that: The writing instrument also includes: The attraction component is capable of generating a force between the sliding member and the sliding member, When the writing tool is in a normal use state, no force is generated between the sliding member and the attracting member; When the writing tool is not in a normal use state, the sliding member moves into the influence area of the attraction component, and a force is generated between the attraction component and the sliding member to guide the sliding member to move to the fifth position and be fixed at the fifth position.
11. The writing tool according to claim 10, characterized in that: A magnetic force is generated between the attraction component and the sliding member.
12. The writing tool according to claim 3, characterized in that: The core-out mechanism comprises: The press core has a middle section with symmetrical inclined through grooves, the opening size of the inclined through grooves is smaller than the sliding member, and the sliding member is assembled into the press core from the top of the press core.
13. The writing tool according to claim 3, characterized in that: The writing instrument also includes: A guide rail is sleeved on the outside of the core-out mechanism, and a plurality of suspension plates are provided at one end of the guide rail away from the pressing body, and through grooves are provided between the suspension plates; An inner lining is mounted on the outside of the guide rail, and a groove having a structure corresponding to the suspension piece is provided on the inner surface close to the guide rail, and a convex surface is provided on the inner surface of the inner lining corresponding to the through groove, and the convex surface is used to guide the movement of the guide rail and the inner lining; When the push body moves from the initial position to the first position, the core-out mechanism is abutted against by the through groove, so that the core-out mechanism is in a locked state; When the writing tool is not in a normal use state, the core shrinking mechanism moves to the third position, so that the core ejecting mechanism is disengaged from the current through slot and slides along the suspension piece to another through slot, thereby releasing the locking state of the core ejecting mechanism.
14. The writing instrument according to claim 13, characterized in that: The liner is provided with a liner opening, the guide rail is provided with a guide rail opening, a plurality of tooth-shaped steps are arranged inside the guide rail opening, and the core shrinking mechanism is assembled in the liner opening and the guide rail opening through the tooth-shaped steps.
15. The writing instrument according to claim 14, characterized in that A limiting structure corresponding to the lining is provided on one side of the guide rail close to the lining, and an attraction component passes through the lining from the limiting structure and is assembled into the guide rail opening to generate a force between the attraction component and the sliding component.
16. The writing instrument according to claim 13, characterized in that: The writing instrument also includes: The rotating wheel has an opening, the bottom of the opening abuts against the top of the pen core, and the outer surface close to the pen core is provided with a plurality of convex points, and the convex points are used to abut against the through groove.
17. The writing instrument according to claim 16, characterized in that: The suspension piece is a sloped suspension piece, and the convex point is an inclined convex point. When the push body moves from the initial position to the first position, the rotating wheel moves forward along the inclined hanging piece through the inclined convex point, and abuts against the inclined hanging piece and the convex surface, so that the pen core protrudes from the front end of the pen housing; When the writing tool is not in a normal use state, the liner slides toward the rear side of the pen housing to release the abutment formed with the inclined hanging piece and the convex surface, and the pen core is retracted into the pen housing.
18. The writing instrument according to claim 1, characterized in that The pen housing also includes: The pen cover has a pen hole at the front end for the pen core to protrude from the front end; A pen holder connected to one end of the pen cap away from the pen hole, and accommodating the pressing body, the core-exiting mechanism and the core-retracting mechanism; A boss is arranged inside the pen cap, and the writing tool further comprises an elastic member, which acts on the boss inside the pen cap and the front end of the pen core respectively.