CN108883655B - Writing instrument and holding member - Google Patents
Writing instrument and holding member Download PDFInfo
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- CN108883655B CN108883655B CN201780019871.XA CN201780019871A CN108883655B CN 108883655 B CN108883655 B CN 108883655B CN 201780019871 A CN201780019871 A CN 201780019871A CN 108883655 B CN108883655 B CN 108883655B
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- region
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- 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
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- Pens And Brushes (AREA)
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Abstract
The writing instrument of the present invention includes a shaft tube and a grip member surrounding the shaft tube in a circumferential direction, wherein a wall thickness of the grip member varies in the circumferential direction, a wall thickness of the shaft tube varies in the circumferential direction, a region of the grip member having a large wall thickness surrounds a region of the shaft tube having a small wall thickness, and a region of the grip member having a small wall thickness surrounds a region of the shaft tube having a large wall thickness.
Description
Technical Field
The present invention relates to a writing instrument and a grip member.
Background
Writing instruments in which an outer surface of a shaft tube is surrounded by a resilient gripping member such as rubber have been known (for example, japanese patent No. 4043305 (patent document 1)). A grip member for absorbing a force applied to the user's fingers by an elastic force thereof to relieve fatigue when the user of the writing instrument grips the writing instrument, thereby providing a large frictional force between the shaft tube and the fingers to prevent the user's fingers from undesirably sliding with respect to the shaft tube. Thereby improving the gripping comfort and writing comfort of the writing instrument.
However, the degree to which the elastic force of the grip member is sufficient is not enough to feel that the writing instrument having the grip member is comfortable to grip, and this varies depending on the preference of the user. That is, there are users who feel that the gripping comfort is good when the gripping member is soft, and users who feel that the gripping comfort is good when the gripping member is hard. Therefore, although it is desired to develop a writing instrument having a grip member which gives a sense of good gripping comfort to many users, it is difficult to realize the writing instrument.
Documents of the prior art
Patent document
Patent document 1: japanese patent No. 4043305
As a result of intensive studies, the inventors of the present invention have found that the above-described problems can be solved by providing a region providing relatively soft gripping comfort and a region providing relatively stiff gripping comfort in the gripping member.
The present invention has been made based on the above findings. That is, an object of the present invention is to provide a writing instrument having a grip member which gives a sense of good gripping comfort to many users.
Alternatively, an object of the present invention is to provide a grip member which gives a feeling of good gripping comfort to many users.
Disclosure of Invention
The writing instrument of the present invention comprises a shaft tube and a grip member surrounding the shaft tube in the circumferential direction,
the thickness of the gripping member varies in the circumferential direction,
the wall thickness of the shaft cylinder varies along the circumferential direction,
the area with large wall thickness of the holding part surrounds the area with small wall thickness of the shaft barrel,
the area with small wall thickness of the holding part surrounds the area with large wall thickness of the shaft barrel.
According to the present invention, since soft gripping comfort is provided to the user in the region where the thickness of the gripping member is large and hard gripping comfort is provided to the user in the region where the thickness of the gripping member is small, a writing instrument having a gripping member which feels good gripping comfort to many users can be provided.
Preferably, the inner surface of the shaft barrel is substantially circular in cross-section. In this case, the shaft tube does not interfere with the writing body housed in the shaft tube, and the writing instrument is easily assembled.
Preferably, the outer surface of the gripping member has a substantially circular cross section. In this case, the user can hold the writing instrument without discomfort.
Preferably, an outer surface of the shaft tube surrounded by the grip member has a chamfered portion (also referred to as a chamfered portion). The chamfered portion corresponds to a region where the wall thickness of the shaft tube is small. In this case, when the region corresponding to the chamfered portion is gripped through the gripping member, the region having a large wall thickness of the gripping member is compressed and deformed, and therefore, compared with a case where a region having no chamfered portion, that is, a region having a small wall thickness of the gripping member is gripped, it is possible to provide a softer gripping comfort. Further, the chamfered portion is joined to a region where the thickness of the grip member is large, and thus undesired relative rotation of the grip member with respect to the shaft tube can be prevented.
More preferably, the chamfered portions are provided at 3 positions in the circumferential direction of the shaft tube at equal intervals. In this case, the chamfered portion of the shaft tube and the region where the thickness of the gripping member is large can be located at a position where 3 fingers (thumb, index finger, and middle finger) gripping the writing instrument contact the gripping member. That is, a region of the gripping member having a large thickness, that is, a region providing soft gripping comfort can be effectively arranged.
The grip member of the present invention is in the form of a tube surrounding the shaft of the writing instrument,
the block has a region with a large wall thickness and a region with a small wall thickness, and a plurality of blocks surrounded by grooves are formed on the outer surface.
According to the invention, the regions with a large wall thickness are largely deformed and the regions with a small wall thickness are slightly deformed. Specifically, in the region with a large thickness, the entire block is largely compressively deformed due to the thickness and the presence of the grooves on the periphery, while in the region with a small thickness, the block is less compressively deformed. This provides a soft gripping comfort to the user in the region with a large thickness and a hard gripping comfort to the user in the region with a small thickness, and therefore, a gripping member that feels good gripping comfort to many users can be provided.
Further, since the periphery of the block is surrounded by the groove, the user's fingers are caught by the groove, and therefore, it is possible to suppress the occurrence of an undesired slip in the circumferential direction of the grip member. Further, since the user's fingers are caught by the groove, it is possible to suppress an undesired sliding in the axial direction of the grip member.
Preferably, the block has a large thickness in the region having a large thickness and a small thickness in the region having a small thickness. In this case, particularly in a region having a large wall thickness, the block of the gripping member is easily compressed and deformed, so that a softer gripping comfort can be provided in this region.
In addition, the grip member preferably has an inner region with a large wall thickness and an inner region with a small wall thickness in an inner region where the groove is not formed,
the region having a large wall thickness corresponds to the inner region having a large wall thickness,
the region having a small wall thickness corresponds to the inner region having a small wall thickness.
In this case, particularly in a region with a large wall thickness, the balance between the compression deformation and the flexural deformation becomes good, and a grip member that is more comfortable to grip for many users can be provided.
Drawings
Fig. 1A is a schematic plan view showing a writing instrument according to an embodiment of the present invention.
Fig. 1B is a schematic side view showing the writing instrument of fig. 1A, and is a schematic side view showing a state after a writing part of the writing body is fed from a front end of the shaft tube.
Fig. 2 is a schematic vertical cross-sectional view showing the writing instrument of fig. 1A.
Fig. 3 is a partial schematic perspective view showing a state in which the front shaft and the grip member of the writing instrument of fig. 1A are assembled.
Fig. 4 is a schematic perspective view showing a front shaft of the writing instrument of fig. 1A.
Fig. 5 is a schematic longitudinal cross-sectional view of the front shaft and the grip member of fig. 3.
Fig. 6 is a schematic cross-sectional view of the front axle and the gripping member of fig. 3.
Fig. 7 is a sectional view taken along line VII-VII in fig. 1A, with the writing material in the shaft omitted.
Fig. 8 is a sectional view taken along line VIII-VIII of fig. 1A, with the writing body in the shaft omitted.
Fig. 9 is a cross-sectional view taken along line IX-IX of fig. 1A, with the writing body inside the shaft omitted.
Detailed Description
Hereinafter, an embodiment of the present invention will be described in detail with reference to the drawings.
Fig. 1A is a schematic plan view showing a writing instrument 100 according to an embodiment of the present invention, and fig. 1B is a schematic side view showing the writing instrument 100 of fig. 1A, and is a schematic side view showing a state in which a writing section 51 of a writing body 50 is sent out from a front end of a shaft 10. Fig. 2 is a schematic longitudinal sectional view showing the writing instrument 100 of fig. 1A.
As shown in fig. 1A, 1B, and 2, the writing instrument 100 of the present embodiment includes: a shaft tube 10 having a front shaft 20 and a rear shaft 30 coupled to the front shaft 20, for example, by snap-fitting (fitting when a passenger り goes over し); a grip member 40, the grip member 40 circumferentially surrounding an outer surface of the front axle 20; and a writing body 50, the writing body 50 being capable of moving in and out of the shaft tube 10. For example, the front shaft 20 and the rear shaft 30 are made of resin, and the grip member 40 is made of rubber. In the illustrated example, the writing utensil 100 is a ball point pen.
The shaft tube 10 (front shaft 20) has a 1 st opening 21 at the front end through which the writing section 51 of the writing body 50 can protrude. The shaft tube 10 (front shaft 20) has a 1 st engagement portion 22 on the inner surface of the front region. The writing body 50 has a 2 nd engaging portion 52 on an outer surface thereof rearward (rightward in fig. 2) of the 1 st engaging portion 22 of the front axle 20. The coil spring 60 is disposed in a compressed state between the 1 st engaging portion 22 and the 2 nd engaging portion 52. The coil spring 60 is a member for biasing the writing body 50 rearward (rightward in fig. 1A to 2) in the axial direction of the shaft tube 10. The rear end 50e of the writing body 50 abuts against the rotating cam 23 provided in the rear region inside the rear shaft 30 and is regulated to move relatively rearward in the axial direction of the shaft tube 10, whereby the compressed state of the coil spring 60 is maintained.
The pushing member 70 is a member for causing the writing body 50 to protrude from the 1 st opening 21 of the front shaft 20 against the biasing force of the coil spring 60. The pressing member 70 is movable between a protruding position (see fig. 1B) corresponding to a state where the writing section 51 of the writing body 50 protrudes outward from the 1 st opening 21 by moving the writing body 50 forward (leftward in fig. 1A to 2) in the axial direction of the shaft tube 10, and an immersing position (see fig. 1A) corresponding to a state where the writing section 51 of the writing body 50 is immersed in the front shaft 20. As shown in fig. 1A and 1B, the rear end 70e of the knock member 70 protrudes outward from the 2 nd opening 31 at the rear end of the rear shaft 30 in both the protruding position and the retracted position.
The writing instrument 100 of the present embodiment is provided with a cam mechanism having a rotary cam 23 for switching the movement of the writing element 51 of the writing body 50 into and out of the shaft tube 10 and a cam groove (not shown) engaged with the rotary cam 23. As will be described in detail later, when the knock member 70 is pushed (pushed) in a state where the writing section 51 of the writing body 50 is inserted into the front shaft 20 (see fig. 1A), the rotary cam 23 slides along the cam groove, the writing section 51 of the writing body 50 protrudes outward from the 1 st opening 21 of the front shaft 20, and the rotary cam 23 is rotated by the action of the cam mechanism, so that the writing body 50 is inhibited from moving relatively rearward in the axial direction of the shaft tube 10, and the protruding state is maintained even after the pushing operation is completed. When the knock member 70 is pushed again (pushed) in this protruding state, the writing body 50 is allowed to move backward in the axial direction of the shaft tube 10 by the action of the cam mechanism, and the writing body 50 and the knock member 70 are pushed back backward in the axial direction by the biasing force of the coil spring 60 to return to the initial state.
Next, fig. 3 is a partial schematic perspective view showing a state in which the front shaft 20 and the grip member 40 of the writing instrument 100 of fig. 1A are assembled. Fig. 4 is a schematic perspective view showing the front shaft 20 of the writing instrument 100 of fig. 1A, fig. 5 is a schematic vertical sectional view showing the front shaft 20 and the holding member 40 of fig. 3, and fig. 6 is a schematic transverse sectional view showing the front shaft 20 and the holding member 40 of fig. 3.
As shown in fig. 3, the outer surface of the front shaft 20 of the writing instrument 100 of the present embodiment is surrounded by the grip member 40. The grip member 40 can be manufactured together with the front axle 20 by, for example, two-color molding. On the outer surface of the grip member 40, 16 axially extending grooves 41 extending at equal intervals in the axial direction and 18 other grooves 42 extending at equal intervals in the orthogonal direction from one groove are formed. That is, a plurality of rectangular regions each surrounded by one groove 41 and the other groove 42 are defined in the outer surface of the gripping member 40 of the present embodiment (block 40 b).
As shown in fig. 4 and 5, the front shaft 20 of the present embodiment has a front end region 24 that is a region not surrounded by the grip member 40, and a cover region 25 surrounded by the grip member 40. The distal end region 24 has a circular cross section and is tapered toward the front (lower left in fig. 4). The outer diameter of the rear end of the front end region 24 is larger than the outer diameter of the front end of the covering region 25 by the thickness of the gripping member 40, and a step is not formed between the rear end of the front end region 24 and the front end of the gripping member 40 in a state where the covering region 25 is surrounded by the gripping member 40.
As shown in fig. 4 and 5, the outer surface of the covering region 25 has a chamfered portion 26. The chamfered portion 26 is an elliptical region formed by digging out the outer surface of the cylindrical covering region 25. In fig. 4, only two chamfered portions 26 are shown, but actually, the chamfered portions 26 are provided at equal intervals at three locations in the circumferential direction of the front shaft 20. In fig. 5, a cross section of the cover region 25 of the front axle 20 is visible, but the chamfered portion 26 does not appear on the upper portion of the cross section 25a, and the thickness of the cover region 25 is constant in the axial direction. On the other hand, the lower section 25b shows a chamfered portion 26, and the thickness of the front shaft 20 varies in the axial direction (decreases at the chamfered portion 26).
As shown in fig. 6, the inner surface of the front axle 20 is generally circular in cross-section. In addition, the outer surface of the gripping member 40 is substantially circular in cross section. Here, the substantially circular shape means that, when the irregularities existing on the inner surface of the front shaft 20 are ignored, the contour line of the inner surface is circular, or the contour line (ridge line) of each block 40b of the recess formed by the groove 41 formed on one side and the groove 42 formed on the other side of the outer surface of the grip member 40 is circular. As shown in fig. 6, the inner surface of the grip member 40 and the outer surface of the covering region 25 of the front axle 20, particularly the inner surface of the grip member 40 and the chamfered portion 26 provided in the covering region 25 are in contact with each other without a gap.
That is, the thickness of the gripping member 40 varies at the portion corresponding to the chamfered portion 26. The thickness of the cover region 25 of the front axle 20 varies in the circumferential direction due to the presence of the chamfered portion 26. The region 43 of the gripping member 40 having a large thickness surrounds the outer surface of the region of the front shaft 20 having a small thickness, that is, the chamfered portion 26, and the region 44 of the gripping member 40 having a small thickness surrounds the outer surface of the region 27 of the front shaft 20 having a large thickness.
Here, the configurations of the front axle 20 and the grip member 40 will be described in more detail with reference to fig. 7 to 9. Fig. 7 is a sectional view taken along line VII-VII of fig. 1A, a sectional view taken along line VIII-VIII of fig. 1A in fig. 8, and a sectional view taken along line IX-IX of fig. 1A. In fig. 7 to 9, the writing body 50 inside the front shaft 20 is not shown.
As shown in fig. 7 and 8, chamfered portions 26 are present in the cover region 25 of the front shaft 20 at the positions of the lines VII-VII and VIII-VIII in fig. 1A, and chamfered portions 26, which are regions having a small wall thickness of the front shaft 20, and regions 27 having a large wall thickness of the front shaft 20 are alternately present at equal intervals in the circumferential direction. As described above, the region 43 of the gripping member 40 having a large thickness surrounds the outer surface of the chamfered portion 26, and the region 44 of the gripping member 40 having a small thickness surrounds the outer surface of the region 27 of the front shaft 20 having a large thickness.
As shown in fig. 7, the thickness of the block 40b (rectangular region) formed on the outer surface of the gripping member 40 varies. Specifically, in the block 40b, the thickness of the block 40b is large (thickness d1) in the region 43 where the thickness of the grip member 40 is large, and the thickness of the block 40b is small (thickness d2) in the region 44 where the thickness of the grip member 40 is small. Such variation in the thickness of the block 40b is particularly significant in fig. 8. The line VIII-VIII in fig. 1A corresponding to fig. 8 corresponds to the position where the thickness of the chamfered portion 26 is maximum and the circumferential width is maximum. Therefore, in the chamfered portion 26 of fig. 8, the thickness of the front shaft 20 is the smallest, and the thickness of the gripping member 40 surrounding the outer surface of the chamfered portion 26 is the largest. As shown in FIG. 8, in the region 43 of the gripping member 40 where the wall thickness is large, the maximum thickness of the block 40b is d 1' (> d 1). On the other hand, in the region 44 of the gripping member 40 of fig. 8 where the thickness is small, the maximum thickness of the block 40b is d2, which is substantially the same as the case of fig. 7.
As shown in fig. 7 and 8, the grasping member 40 includes: an outer region 45 in which one groove 41 extending in the axial direction and the other groove 42 extending from the one groove 41 in the orthogonal direction are formed; and an inner region 46 (a region radially inward of the outer region 45) where one of the grooves 41 and the other groove 42 are not formed. The inner region 46 has an inner region 46a with a large wall thickness and an inner region 46b with a small wall thickness. The region 43 of the gripping member 40 having a large thickness corresponds to the inner region 46a having a large thickness, and the region 44 of the gripping member 40 having a small thickness corresponds to the inner region 46a having a small thickness. Here, "correspond" means to exist at substantially the same position in the circumferential direction of the grip member 40.
On the other hand, as shown in fig. 9, in the region rearward of the chamfered portion 26 in the covering region 25 of the front axle 20, the thickness of the front axle 20 is constant, and the thickness of the gripping member 40 is also constant. Also, the thickness of the block 40b is also fixed.
Next, the operation of the writing instrument 100 of the present invention will be described.
First, the user presses the pressing member 70 against the shaft tube 10 (pressing operation). As a result, the writing body 50 is relatively moved forward in the axial direction of the shaft tube 10 while compressing the coil spring 60, and the writing section 51 of the writing body 50 is exposed outward from the opening 21 at the front end of the front shaft 20. During this relative movement, the writing body 50 cannot be moved relatively rearward in the axial direction of the shaft tube 10 by the cam mechanism 23, and the projecting state of the writing section 51 can be maintained even when the pressing operation (pressing operation) is finished. The user holds the grip member 40 and writes on a surface to be written such as a paper surface.
The grip member 40 of the present embodiment provides different gripping comfort depending on the region against which the user's fingers are pressed when held by the user. Specifically, in the case where the user's fingers are pressed against the thick region 43 of the gripping member 40, soft gripping comfort is provided to the user. On the other hand, in the case where the user's fingers are pressed against the region 44 of the gripping member 40 where the wall thickness is small, a hard gripping comfort is provided to the user. As described above, since the regions 43 with a large wall thickness of the gripping member 40 and the regions 44 with a small wall thickness of the gripping member 40 are alternately arranged at 3 places at equal intervals in the circumferential direction, when one finger (for example, a thumb) of the user is pressed against the region 43 with a large wall thickness of the gripping member 40, the other fingers (for example, an index finger and a middle finger) are normally pressed against the region 43 with a large wall thickness at the remaining 2 places. Similarly, if one of the user's fingers (e.g., thumb) is pressed against the area 44 of small wall thickness of the gripping member 40, the other fingers (e.g., index finger and middle finger) are also typically pressed against the area 44 of small wall thickness at the remaining 2.
At the time of this gripping, the gripping member 40 is compressed and deformed in the radial direction by the force applied by the user's fingers. In particular, when the user's fingers are pressed against the region 43 of the gripping member 40 having a large thickness, the compression deformation is larger than that in the case where the user's fingers are pressed against the region 44 of the small thickness with the same force. Further, as described above, since the block 40b is formed thicker in the region 43 having a larger thickness of the gripping member 40 than in the region 44 having a smaller thickness of the gripping member 40, the respective blocks 40b of the gripping member 40 surrounded by the grooves on the four sides are easily deformed to be bent to the four sides when the fingers of the user press the blocks. This provides the user with soft gripping comfort in the region 43 of the gripping member 40 with a large wall thickness.
On the other hand, when the user's fingers are pressed against the small-thickness region 44 of the gripping member 40, the gripping member 40 is less compressed and deformed than when the user's fingers are pressed against the large-thickness region 43. In the region 44 of the gripping member 40 having a small wall thickness, the wall thickness of the block 40b is also the smallest, so that the block 40b is only slightly deformed by deflection. Thus, in the region 44 of the gripping member 40 where the wall thickness is small, a hard grip comfort is provided to the user. In the present embodiment, the outer surface of the chamfered portion 26 of the front shaft 20 is in contact with the inner surface of the thick region 43 of the grip member 40 without a gap, and the cross section of the contact surface is non-circular, thereby preventing relative rotation of the grip member 40 with respect to the front shaft 20 (see fig. 7 and 8).
When writing by the writing instrument 100 is completed, the user again performs a pressing operation (pressing operation) of the pressing member 70 toward the axial direction front side of the barrel 10. Thereby, the writing body 50 relatively moves forward of the shaft tube 10 against the biasing force of the coil spring 60. During this relative movement, the writing body 50 is in a state of being relatively movable rearward in the axial direction of the shaft tube 10 by the cam mechanism 23. When the pushing operation (pushing operation) is completed, the coil spring 60 is relatively moved rearward in the axial direction of the shaft tube 10 by the biasing force, and the initial state, that is, the state where the writing section 51 of the writing body 50 is inserted into the shaft tube 10 is restored.
According to the present embodiment as described above, since the soft gripping comfort is provided to the user in the region 43 with a large thickness of the gripping member 40 and the hard gripping comfort is provided to the user in the region 44 with a small thickness of the gripping member 40, the writing instrument 100 having the gripping member 40 which feels good gripping comfort to many users can be provided.
Since the inner surface of the shaft tube 10 (front shaft 20) of the present embodiment has a circular cross section, the shaft tube 10 does not interfere with the writing body 50 housed in the shaft tube 10, and the writing implement 100 can be easily assembled.
Further, since the outer surface of the grip member 40 has a substantially circular cross section, the user can hold the writing instrument 100 without discomfort.
The outer surface of the covering region 25 of the front axle 20 surrounded by the grip member 40 has a chamfered portion 26 as a region where the wall thickness of the front axle 20 is small. Therefore, when the region corresponding to the chamfered portion 26 is gripped through the gripping member 40, the region 43 having a large wall thickness of the gripping member 40 is compressed and deformed relatively largely, and therefore, compared with a case where a region where the chamfered portion 60 is not provided, that is, a region 44 having a small wall thickness of the gripping member 40 is gripped, it is possible to provide softer gripping comfort. Moreover, the chamfered portion 26 engages with the thick region 43 of the gripping member 40 to prevent an undesired relative rotation of the gripping member 40 with respect to the front axle 20.
Since the chamfered portions 26 are provided at 3 positions in the circumferential direction of the covering region 25 of the front shaft 20 at equal intervals, the chamfered portions 26 of the front shaft 20 and the regions 43 of the gripping member 40 having a large wall thickness can be positioned at positions where 3 fingers (thumb, index finger, and middle finger) gripping the writing instrument 100 come into contact with the gripping member 40. That is, the region 43 of the gripping member 40 having a large thickness, that is, the region providing soft gripping comfort can be effectively arranged.
In the present embodiment, the block 40b (rectangular region) is formed by one groove 41 extending in the axial direction and the other groove extending in the orthogonal direction from the one groove, but in another embodiment, the block 40b (annular region) surrounded by the grooves on the four sides may be formed by grooves formed in an annular shape.
In the present embodiment, when the thickness of the block 40b is not constant, the maximum thickness thereof is set to the thickness of the block.
In the present embodiment, the writing instrument 100 is exemplified by a ball-point pen, but the writing instrument is not limited to this. By appropriately selecting the writing body 50, the present invention can be applied to various writing instruments such as an automatic pen, a signature pen, and a correction pen.
Claims (8)
1. A writing implement, comprising:
a shaft cylinder; and
a gripping member circumferentially surrounding the shaft sleeve,
the wall thickness of the gripping member varies in the circumferential direction,
the wall thickness of the shaft tube varies along the circumferential direction,
the area with large wall thickness of the holding part surrounds the area with small wall thickness of the shaft cylinder,
the area with small wall thickness of the holding part surrounds the area with large wall thickness of the shaft barrel,
the gripping member has a groove extending in the circumferential direction,
the depth of the groove in the region where the wall thickness of the grip member is large is larger than the depth of the groove in the region where the wall thickness of the grip member is small.
2. The writing utensil of claim 1,
the inner surface of the shaft barrel is substantially circular in cross-section.
3. The writing utensil of claim 1,
the outer surface of the gripping member is substantially circular in cross-section.
4. A writing implement according to any one of claims 1 to 3,
the outer surface of the shaft cylinder surrounded by the gripping member has a chamfered portion.
5. The writing utensil of claim 4,
the chamfered portions are provided at 3 positions in the circumferential direction of the shaft barrel at equal intervals.
6. A grip member having a cylindrical shape surrounding a shaft tube of a writing instrument, the grip member having a large-wall region and a small-wall region, and having on an outer surface a plurality of blocks each surrounded by one groove extending in a front-rear direction and another groove extending in a circumferential direction, wherein a depth of the another groove in the large-wall region is larger than a depth of the another groove in the small-wall region.
7. A grip element according to claim 6,
the plurality of blocks have a large wall thickness in the region of large wall thickness and a small wall thickness in the region of small wall thickness.
8. A grip element according to claim 6 or 7,
the grip member has an inner region with a large wall thickness and an inner region with a small wall thickness in an inner region where no groove is formed,
the region of large wall thickness corresponds to the inner region of large wall thickness,
the region with a small wall thickness corresponds to the inner region with a small wall thickness.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016057536A JP6707375B2 (en) | 2016-03-22 | 2016-03-22 | Writing instrument |
| JP2016-057536 | 2016-03-22 | ||
| PCT/JP2017/010977 WO2017164131A1 (en) | 2016-03-22 | 2017-03-17 | Writing implement and grip member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108883655A CN108883655A (en) | 2018-11-23 |
| CN108883655B true CN108883655B (en) | 2020-10-02 |
Family
ID=59900565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201780019871.XA Active CN108883655B (en) | 2016-03-22 | 2017-03-17 | Writing instrument and holding member |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP6707375B2 (en) |
| KR (1) | KR102184980B1 (en) |
| CN (1) | CN108883655B (en) |
| TW (1) | TWI636900B (en) |
| WO (1) | WO2017164131A1 (en) |
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| CN1708411A (en) * | 2002-10-23 | 2005-12-14 | 百龙企业有限公司 | Variable grip structure |
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| USH350H (en) * | 1987-04-27 | 1987-10-06 | The United States Of America As Represented By The Secretary Of The Navy | Energetic polynitro formal plasticizers |
| JPH0447574U (en) * | 1990-08-24 | 1992-04-22 | ||
| JP2607456Y2 (en) * | 1993-05-31 | 2001-09-04 | ぺんてる株式会社 | Grasping structure of writing instrument |
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| JP4183452B2 (en) * | 2002-07-31 | 2008-11-19 | 株式会社パイロットコーポレーション | Multi-core writing instrument |
| JP2004066560A (en) * | 2002-08-02 | 2004-03-04 | Kotobuki & Co Ltd | Grip structure of writing utensil |
| JP4001130B2 (en) * | 2004-06-25 | 2007-10-31 | ぺんてる株式会社 | Writing instrument grip |
| JP5022260B2 (en) * | 2008-02-05 | 2012-09-12 | ゼブラ株式会社 | Writing instrument |
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-
2017
- 2017-03-17 CN CN201780019871.XA patent/CN108883655B/en active Active
- 2017-03-17 KR KR1020187025954A patent/KR102184980B1/en active IP Right Grant
- 2017-03-17 WO PCT/JP2017/010977 patent/WO2017164131A1/en active Application Filing
- 2017-03-22 TW TW106109485A patent/TWI636900B/en active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USH1050H (en) * | 1990-11-02 | 1992-05-05 | The Gillette Company | Writing instrument |
| US20010016139A1 (en) * | 1998-03-26 | 2001-08-23 | Bic Corporation | Writing instrument with finger gripping device |
| CN2493421Y (en) * | 2001-05-14 | 2002-05-29 | 陈国寿 | Writing tool holder |
| CN1558832A (en) * | 2001-09-25 | 2004-12-29 | �̿˹�˾ | Easily assembled grip element |
| CN1708411A (en) * | 2002-10-23 | 2005-12-14 | 百龙企业有限公司 | Variable grip structure |
| DE202005009196U1 (en) * | 2005-06-11 | 2005-09-08 | Kuo, Chin-Yi, Panchiao | Writing implement has hollow tubular grip with refill and outer ornamental rings arranged on grip in various sequences and arrangements |
| CN200992054Y (en) * | 2007-01-22 | 2007-12-19 | 杨东豫 | Multifunction pen |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017164131A1 (en) | 2017-09-28 |
| JP6707375B2 (en) | 2020-06-10 |
| JP2017170701A (en) | 2017-09-28 |
| KR20180124860A (en) | 2018-11-21 |
| KR102184980B1 (en) | 2020-12-01 |
| TWI636900B (en) | 2018-10-01 |
| CN108883655A (en) | 2018-11-23 |
| TW201736154A (en) | 2017-10-16 |
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