WO1996023666A1 - Side-knock mechanical pencil - Google Patents
Side-knock mechanical pencil Download PDFInfo
- Publication number
- WO1996023666A1 WO1996023666A1 PCT/JP1996/000139 JP9600139W WO9623666A1 WO 1996023666 A1 WO1996023666 A1 WO 1996023666A1 JP 9600139 W JP9600139 W JP 9600139W WO 9623666 A1 WO9623666 A1 WO 9623666A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- knock
- core
- pencil
- piece
- barrel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K21/00—Propelling pencils
- B43K21/02—Writing-core feeding mechanisms
- B43K21/16—Writing-core feeding mechanisms with stepwise feed of writing-cores
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
- B43K—IMPLEMENTS FOR WRITING OR DRAWING
- B43K24/00—Mechanisms for selecting, projecting, retracting or locking writing units
- B43K24/02—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions
- B43K24/08—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons
- B43K24/082—Mechanisms for selecting, projecting, retracting or locking writing units for locking a single writing unit in only fully projected or retracted positions operated by push-buttons placed on the side
Definitions
- the present invention arranges a center feeding mechanism inside a barrel and places a knock piece on the side wall of the barrel in a radially inward direction.
- a side-knock type pencil pencil which is arranged so as to be capable of being pushed, moves the lead-out mechanism forward and backward by the pressing operation of the knock piece, and draws out the lead from the shaft cylinder by these operations. Things. Background technology
- Japanese Utility Model Laid-Open No. 55-1717-1577 is known as an example of a side knock type pencil pencil.
- the gist is described as follows: ⁇
- a base is provided at the lower end, and the inner cylinder shorter than the outer cylinder shaft is movably accommodated.
- An internal mechanism return spring that plays the role of retreating and an appropriate locking means are provided, and an inner window hole is provided near the gripping fingertip of the outer cylinder shaft at a portion corresponding to the outer window hole and the outer window hole of the inner cylinder.
- the core case, the relay pipe, and the 30% chuck are housed in the inner cylinder so as to be integrated, and the outside of the 30% chuck protruding from the inner cylinder and the inside of the base are provided.
- a fastener is provided, and a slider that moves the 30% chuck in the direction of the center of the core in the inner cylinder is provided.
- Side knock button that can be pushed down and the above
- a head and side knock type pencil having a knock cover provided at an upper end of a lead case for pushing a 30% chuck in a leading direction.
- the cores stored in the core case are separated one by one by the upper end of the relay pipe, passed through the relay pipe, and guided to the 30% chuck.
- the core gripped by the split chuck is one in which the slider and the split chuck advance and are extended by the pressing action of the side knock button in the radial direction.
- the slider is not moved by only the forward force.
- the force also acts in the direction in which the side knock button is pressed.
- the force in the pressing direction on the slider becomes a force in the direction of tilting the slider, and the tilting force increases as the side knock button is pressed.
- the connecting portion between the relay pipe and the 30% chuck is bent by the inclination of the slider.
- defective feeding of the core occurs. In other words, the core will be distorted due to the refraction, and will not be able to be extended, or the amount of extension will be reduced.
- the present invention has been made in view of the above-described problems, and has a core feeding mechanism disposed inside a barrel, and a knock piece can be pressed radially inward on a side wall of the barrel.
- the knock-out pusher moves the lead-out mechanism back and forth, and these operations lead the lead out of the shaft cylinder.
- a core insertion part through which the core passes in the pressing direction of the hook is provided, and the diameter of the core insertion part is formed to be at least twice as large as the diameter of the core, and at least in front of the core insertion part.
- the first point is that one core receiving part is provided, and a core feeding mechanism is arranged inside the barrel, and a knock piece is radially mounted on the side wall of the barrel.
- the side knocking mechanism is arranged so as to be capable of being pressed inward, and the pushing operation of the knock piece causes the lead-out mechanism to move back and forth, and the lead is pulled out from the barrel by these operations.
- At least one core receiving portion is provided in the vicinity of the knocking piece, and a core hole through which the core passes is formed in the core receiving portion, and core insertion holes are provided on both sides of the core receiving portion.
- the second point is that a space having a step area larger than the cross-sectional area is formed.
- FIG. 1 is a longitudinal half sectional view of a main part showing the present invention.
- FIG. 2 is a perspective view of an essential part showing an engagement relationship between the knock piece and the engagement part.
- FIG. 3 is a sectional view taken along line AA of FIG.
- FIG. 4 is a perspective view of a main part showing a shaft cylinder corresponding to FIG.
- FIG. 5 is a vertical half sectional view of a main part showing a state where the knock piece is pressed.
- FIG. 6 is a sectional view taken along the line BB corresponding to FIG.
- FIG. 7 is a perspective view showing another example of the knock piece.
- FIG. 8 is a cross-sectional view showing another example of the barrel.
- FIG. 9 is a perspective view showing a guide member.
- FIG. 10 is a longitudinal half sectional view showing a second embodiment of the present invention.
- FIG. 11 is a perspective view of a main part showing the engagement relationship between the knock piece and the engagement part.
- FIG. 12 is a longitudinal sectional view of a main part showing a state where the knock piece is pressed.
- FIG. 13 is a perspective view showing another example of the knock piece.
- FIG. 14 is a longitudinal sectional view showing another example of use of the present invention.
- FIG. 15 is a cross-sectional view taken along the line C-C corresponding to FIG.
- FIG. 16 is a transverse sectional view showing a third embodiment of the present invention.
- FIG. 17 is a cross-sectional view showing a pressed state of the knock piece corresponding to FIG.
- FIG. 18 is a transverse sectional view showing a fourth embodiment of the present invention.
- FIG. 19 is a cross-sectional view showing a pressed state of the knock piece corresponding to FIG.
- FIG. 20 is a cross sectional view showing a fifth embodiment of the present invention.
- Fig. 21 is a perspective view of the main part showing the engagement relationship between the knock piece and the engagement part.
- FIG. 22 is a longitudinal half sectional view showing a slide member.
- FIG. 23 is a cross-sectional view taken along the line DD shown in FIG.
- FIG. 24 is a cross-sectional view showing a pressed state of the knock piece corresponding to FIG.
- FIG. 25 is a longitudinal sectional view showing a modification of the slide member.
- FIG. 26 is a longitudinal sectional view showing another modification of the slide member.
- FIG. 27 is a longitudinal sectional view of a main part showing a sixth embodiment of the present invention.
- FIG. 28 is a cross-sectional view taken along the line EE corresponding to FIG.
- FIG. 29 is a cross-sectional view showing a modified example corresponding to FIG.
- FIG. 30 is a cross-sectional view showing another modified example corresponding to FIG.
- FIG. 31 is a cross-sectional view showing another modified example corresponding to FIG.
- FIG. 32 is a longitudinal sectional view showing another modification of the slide member.
- FIG. 33 is a view on arrow F corresponding to FIG.
- FIG. 34 is a longitudinal sectional view showing still another modification of the slide member.
- FIG. 35 is a view on arrow G corresponding to FIG.
- FIG. 36 is a longitudinal sectional view showing still another modification of the slide member.
- FIG. 37 is a view on arrow H corresponding to FIG.
- FIG. 38 is a longitudinal sectional view of a main part showing a modification of the shaft cylinder.
- FIG. 39 is a longitudinal sectional view of a main part showing another modification of the shaft cylinder.
- FIG. 40 is a longitudinal sectional view of a main part showing a modification of the knock piece.
- FIG. 41 is a longitudinal sectional view of a main part showing a modification example corresponding to FIG.
- FIG. 42 is a fragmentary longitudinal sectional view showing a modification of the knock piece.
- FIG. 43 is a longitudinal sectional view of an essential part showing another modified example of the knock piece.
- FIG. 44 is an external view of a main part showing a modification of the barrel.
- FIG. 45 is a cross-sectional view showing the engagement relationship between the slide member and the shaft cylinder.
- FIG. 46 is a vertical sectional view of a principal part showing still another modified example of the knock piece.
- FIG. 47 is a transverse sectional view showing a pressed state of the knock piece corresponding to FIG.
- FIG. 48 is a longitudinal sectional view of a main part showing still another modified example of the knock piece.
- FIG. 49 is a cross-sectional view taken along the line I-I corresponding to FIG.
- FIG. 50 is a cross-sectional view showing a modified example corresponding to FIG. Fig. 51 is a cross-sectional view showing the engagement relationship between the slide member and the shaft cylinder ⁇ )
- FIG. 52 is a cross-sectional view taken along the line J-J corresponding to FIG.
- FIG. 53 is a longitudinal sectional view of a main part showing still another modified example of the knock piece.
- FIG. 54 is a longitudinal sectional view of a main part showing a state where the knock piece of FIG. 53 is attached.
- FIG. 55 is a longitudinal sectional view of a principal part showing still another modified example of the knock piece. 0 Best mode for carrying out the invention
- a through hole 2 is formed in a side wall of the barrel 1, and a guide protrusion 3 is formed in the through hole 2.
- a knock piece 4 having a U-shaped cross section is attached to the through hole 2 so as to be movable in a radial direction perpendicular to the shaft cylinder 1.
- a guide groove 5 that engages with the guide protrusion 3 and slides is formed on the side surface of the knock piece 4.
- the knock piece 4 also has an inclined surface portion 6 for advancing a lead-out mechanism described later.
- An inclined surface 7 parallel to the inclined surface 6 is also formed on the opposite side of the inclined surface 6. Further, engagement claws 9 for preventing the drop from the barrel 1 are formed on both sides of the opposite end of the knock piece 4 of the knock piece 4.
- a core tank 11 for storing the core urged rearward by a resilient member 10 such as a coil spring is disposed in front of the shaft cylinder 1.
- the core tank 11 stores at least two or more cores.
- the knock piece 4 is located in the middle of the core tank 11.
- a chuck body 13 fitted with the chuck ring 12 is fixed in front of the core tank 11. Needless to say, the chuck body 13 releases and holds the core, and the chuck ring 1 2 Is used to open and close the chuck body 13.
- An engaging member 14 is fixed to an intermediate portion of the core tank 11, and the engaging member 14 has an inclined groove 15 formed in an oblique direction.
- the knock member 4 is slidably fitted in the inclined groove 15. That is, the engagement portion of the knock member 4 is formed by the inclined surface portion 6 and the inclined surface portion 7 of the knock member 4, and the engagement groove of the engagement member 14 is engaged with the engagement portion. It is a cooperative department.
- a guide groove may be formed in the through hole 2 of the barrel 1, and a guide protrusion associated with the guide groove may be formed on the side surface of the knock piece 4.
- the shape of the guide groove / guide protrusion may be square as shown in the figure, may be an arc, or may be a combination of a corner and an arc. The point is that any shape that satisfies the mutual engagement relationship and can prevent the knock piece from oscillating in the longitudinal direction of the barrel can be used.
- reference numeral 18 denotes a force which is a tip member screwed to the front end of the barrel 1, and may be formed integrally with the barrel 1.
- a core detent member 19 for preventing retraction of the core is press-fitted inside the tip member 18, and a core protection tube 20 such as a stainless steel pipe for protecting the core is press-fitted at the tip.
- any of them may be formed integrally with the tip member 18.
- FIG. 7 a modified example of the knock piece is shown in FIG. 7 and described.
- An engaging portion 21 that engages with the inclined groove 15 of the engaging member 14 is formed in a protruding manner on the inner wall surface of the knock piece 22.
- the engaging portion 21 is formed in an inclined state.
- a reduced diameter portion 24 is formed behind the through hole 2 on the inner surface of the barrel 1, and the above-mentioned knock is formed on a surface portion 25 formed by the reduced diameter portion 24. If the rear end face 26 of the piece 22 is brought into contact with the piece, the knock 22 can be further prevented from swaying (see FIG. 8).
- the guide groove and the guide projection are formed on the shaft cylinder, as shown in FIG. 9, the guide member 27 having the guide groove and the guide projection is formed as a separate member. You may fit in.
- an elastic film such as natural rubber or silicone rubber is formed on the surface of the knocking piece.
- a coil spring or a repelling member such as a magnet that repels each other may be interposed between the shaft cylinder and the shaft cylinder.
- FIGS. 10 to 12 show and explain the second embodiment.
- a through hole 2 is formed in the side wall of the barrel 1, and a knock piece 28 having a U-shaped cross section is formed in the through hole 2 in a radial direction perpendicular to the barrel 1.
- a notch 30 is formed in the middle of the side wall 29 of the knock piece 28, and the knock piece is also formed.
- a front inclined surface 31 is formed at the front end of the side wall 29 of 28.
- the side wall of the knock piece 28 formed by the notch portion 30 and the front inclined surface 31 serves as a first engagement portion 32.
- a rear inclined surface 33 is formed on the rear surface of the notch 30, and the rear inclined surface 33 and the rear end of the knock piece 28 are formed.
- the side wall of the knock piece 28 formed by 34 forms a second engagement portion 35.
- Reference numeral 36 denotes an engagement claw formed on the side surface of the bottom surface of the knock piece 28, which prevents the knock piece 28 from falling off the barrel 1.
- a lead tank 37 for storing a plurality of leads urged rearward by a repelling member 10 such as a coil spring is disposed in front of the barrel 1.
- a chuck body 13 fitted with the chuck ring 12 is fixed.
- the engaging member 38 is formed integrally with the core tank 37 at the intermediate portion of the core tank 37, but may be formed as a separate member. In the case of a separate member, the core tank 37 and the engaging member 38 are fixed to each other by press-fitting, engaging in unevenness, or bonding.
- a notch 39 is formed in the middle of the engaging member 38, and a first engaging portion 32 of the knock piece 28 is provided forward of the notch 39.
- the first engagement receiving portion 40 engages with the first engagement receiving portion 40.
- An intermediate inclined surface 41 is formed at the rear end of the first engagement receiving portion 40, and is engaged with the front inclined surface 31 of the first engagement portion 32.
- the second engagement receiving portion 4 that engages with the second engagement portion 35 of the knock piece 28 at the rear of the notch portion 39 of the engagement receiving portion 38 It is 2.
- a rear end inclined surface 43 is formed at the rear end of the second engagement receiving portion 42, and the second engagement portion of the knock piece 28 is formed.
- the first engagement portion 32 of the knock piece 28 is positioned so as to be sandwiched by the notch 39 of the engagement member 38, Further, the second engagement receiving portion 42 of the engagement member 38 is sandwiched between the first engagement portion 32 and the second engagement portion 35 of the knock piece 28. It is located in a state.
- the shape of the front inclined surface 31 and the intermediate inclined surface 33 formed on the first engagement portion 32 of the knock piece 28 and the second engagement portion 35 is curved. You may. The sliding resistance is reduced, and it becomes easier to press.
- the first engaging portion 45 and the second engaging portion 46 of the knock piece 44 are formed on the inner wall surface of the knock piece 44.
- the first engaging portion of the knock piece 44 is attached to the gantry member 47.
- the inclined groove-shaped engagement receiving portions 48 and 49 in which the second engaging portion 46 is engaged with the second engaging portion 46 may be formed.
- the first engaging portion 45 and the second engaging portion 46 of the knock piece 44 can be hidden, so that a good-looking product can be provided.
- the inner surface of the rear end (rear part 1a) of the barrel 1 is formed in a hexagonal shape as shown in FIG. 15, but may be a square shape or an elliptical shape. A non-circular shape is sufficient.
- a rod-shaped body guide member 50 having a hexagonal fitting portion 50a at the front portion is fitted into the rear portion 1a. That is, the barrel 1 and the rod-shaped body guide member 50 are fitted into each other so as not to rotate.
- a guide groove 5Ob is formed on the opposite side behind the rod-shaped body guide member 50, and the guide groove 5Ob is connected to a rear end portion, and further, a flange portion 50c is formed. Have been.
- An outer cylinder 51 is externally fitted to the rod-shaped body guide member 50, and a spiral groove 51a is formed on the inner wall surface of the outer cylinder 51.
- the outer cylinder 51 has one end locked to the flange 50c and the other end locked to a fixing member 52 such as a 0-ring. It is attached to the body guide member 50.
- Reference numeral 53 denotes a rod-shaped receiving member for holding the eraser 54.
- An engaging projection 53a is formed on a side surface of the rod-shaped receiving member 53, and the guide groove 50b is formed. 0 is engaged with the spiral groove 5 1a through
- the outer cylinder 51 When the outer cylinder 51 is rotated relative to the shaft cylinder 1 (the rod-shaped inner member 50), the rod-shaped guide member moves upward in the figure by the spiral groove 5 la. I do. This movement causes the eraser 54 to protrude. I want to store the eraser 5 4 In some cases, the outer cylinder may be rotated in the opposite direction.
- FIG. 16 and FIG. 17 show a third embodiment.
- the lower part of the knock piece 28 (near the engaging claw 36) is formed to be wider when viewed from the cross-sectional direction, and has a through hole. 2 is press-fitted.
- the wide part is the press-fit part 54.
- the upper part of the knock piece 28 is formed to be narrower, and the width is formed to be narrower than the width of the through hole 2.
- the narrow portion is the non-press-fit portion 55.
- a gap S is formed between 28 and the through hole 2.
- the engaging member 38 is pressed forward while pressing and sliding the intermediate inclined surface 41 and rear end inclined surface 43 of 38. In the course of this pressing operation, The press-fitting action of the knock piece 28 into the through-hole 2 is released to form a gap S, and the core tank 37 and the chuck body 13 advance to unwind the core.
- the notch 39 of the engaging member 38 is formed in a trapezoidal shape (trapezoidal portion 56) with an upwardly expanding cross section, and the cross-sectional shape of the inner surface of the U-shaped knock piece 28 is also changed.
- This is an example of a trapezoidal shape (trapezoidal part 57).
- the trapezoidal portion 56 of the engaging member 38 pushes the lower end of the trapezoidal portion 57 of the knock piece 28 to spread, and It is set to be in the press-fit state.
- a fourth embodiment is shown in FIGS. 20 to 24 and will be described.
- the grip on the front of the barrel 1 (grip for writing) has a mouth-let-like shape.
- the grip portion 58 is formed by applying and solidifying a relatively flexible paint or liquid rubber member, but a cylindrical rubber grip of another member may be inserted. .
- the formation of the grip portion 58 and the attachment of a rubber grip or the like can alleviate writing fatigue and finger pain.
- a through hole 2 is formed in the side wall of the barrel 1 behind the grip portion 58, and the through hole 2 has a U-shaped knock piece 2 having a U-shaped cross section. 8 is attached to the barrel 1 so that it can move in the radial direction in the vertical direction. Since the knock piece 28 has substantially the same configuration as the knock piece of the second embodiment, description thereof will be omitted.
- a cap 60 with a clip 59 is detachably fitted behind the barrel 1, but only the clip 59 is integrated with the barrel 1. It may be molded.
- a slide member 62 urged rearward by a repelling member 61 such as a coil spring is disposed in front of the barrel 1.
- a chuck body 13 with the chuck ring 12 fitted therein is fixed in front of the slide member 62.
- the engaging portion 38 is formed integrally with the slide member 62 at an intermediate portion of the slide member 62, but may be formed as a separate member. In the case where the sliding member 62 and the engaging member 38 are formed by separate members, the fixed state of each other is maintained by press-fitting, fitting in the concave and convex, or bonding. To do. Also, the engagement member 38 has substantially the same configuration as the engagement member of the second embodiment, and a description thereof will be omitted.
- the inside of the core receiving member 64 is formed in a rotor shape so that the core can be easily dropped, and the core is guided to the core introduction hole 63 at the lower end of the rotor part 65.
- a core insertion hole 66 is formed. That is, a core tank portion 67 is provided on the inner rear side of the shaft cylinder 1 with respect to the core receiving member 64, and the core is inserted one by one into the core introduction hole 63 by the core insertion hole 66. It falls.
- a hole 68 connected to the core introduction hole 63 and having substantially the same diameter as the core diameter (outer diameter), and a chuck press-in hole 69 are provided in front of the slide member 62.
- the hole 68 is formed to have the same diameter as the inside diameter of the core introduction hole 63 or the inside diameter of the chuck press-fit hole 69, and the rear end of the chuck body 13 is formed.
- the hole 70 formed in the hole may have the same diameter as the diameter of the core.
- the core introduction hole is formed to be larger than the diameter of the core, the core pin is not easily curved when formed by injection molding or the like. However, even if the cross-sectional shape is non-circular, the molded product itself is not easily curved and a straight core introduction hole is formed.
- knock pieces 28 are arranged behind the grip portion 58 and in front of the clip 59, it is possible to prevent accidental pressing of the knock pieces during writing. Can be.
- the core is formed by the core ⁇ through holes 66 of the core receiving member 65.
- One is separated and guided to the chuck body 13 through the core introduction hole 63 and the hole 68.
- the core introduction hole 63 is formed to be larger than the outer diameter of the core.
- the core is smoothly guided to the chuck body 13 without being turned over.
- the knock piece 28 is pressed straight in the radial direction, the front inclined face 31 and the intermediate inclined face 33 of the knock piece 28 become the intermediate inclined face 41 of the engaging member 38.
- the engaging member 38 is pressed forward while pressing and sliding the rear end inclined surface 43. By this pressing operation, the slide member 62 and the chuck body 13 advance and the lead is extended.
- the length from the core gripping part to the core receiving part of the chuck body is set to be larger than the length of the core to be used, so that it can be attached to the rear end of the preceding core.
- many other cores do not contact the trailing end of the preceding core, so the leading core is smoothly inserted into the grip of the chuck body. (Fall).
- the trailing lead is smoothly advanced and fed out according to the use (decrease) of the leading lead.
- the slide member 62 may be a slide member composed of two members. In the case of two members, it is preferable to form the concave / convex fitting portion 69 and the like so that they can be positioned relative to each other as shown in FIG.
- FIGS. 27 and 28 show and explain the sixth embodiment.
- a through hole 71 is formed in the side wall of the shaft cylinder 70 in the longitudinal direction, and a knock piece 7 2 having a U-shaped cross section is formed in the through hole 71.
- the knock piece 72 is rotatably mounted with the rear end of the knock piece 72 as a fulcrum.
- a recess 73 is formed at the rear end of the knock piece 72 (hereinafter, the upper side of the drawing is referred to as the rear, and the lower side is referred to as the front).
- the recess 73 is fitted to one end (rear end) of the through hole 71, and a projection 74 is formed at the front end of the knock piece 72. 1 other end
- the knock piece 72 may be moved in parallel with the radial direction of the barrel 70.
- a front member 76 is screwed in front of the shaft cylinder 70 via an intermediate member 75.
- a center detent member 707 for preventing the core from retracting is press-fitted, and at the tip of the tip member 76, a core protection tube such as a stainless steel pipe for protecting the core is provided. 7 and 8 are press-fitted.
- a slide member 80 urged rearward by a repelling member 79 such as a coil spring is disposed on the relay member 75.
- a chuck body 82 to which the chucking 81 is fitted is fixed in front of the slide member 80. Needless to say, the chuck body 82 is for releasing and holding the core, and the chuck ring 81 is for opening and closing the chuck body.
- a core tank portion 83 in which a plurality of cores are stored, and the core tank portion 83 is also inside the shaft cylinder 70. That is, the barrel 70 itself is also the core tank 83.
- Slide member 80 An inclined surface 84 is formed at the rear end of 0, and the inclined surface 84 is in contact with the bottom surface 85 of the front end of the knock piece 72.
- the cross-sectional shape behind the slide member 80 has a circular shape as shown in FIG. 28, and has an outer diameter substantially equal to the inner diameter of the barrel 70. Even if they have substantially the same diameter, there is a gap that allows the slide member 80 to move and that does not allow the core to be used to pass.
- a lead core with a nominal diameter of 0.5 mm (a nominal diameter of 0.5 mm in JIS (Japanese Industrial Standards) S61013) has an allowable range of 0.55 mn.
- the gap between the barrel 1 and the slide piece 9 is about 0.1 mm to 0.3 mm.
- the gap may be set to about 0.05 mm to 0.1 mm, and the amount of the gap can be appropriately selected depending on the core to be used.
- a core insertion hole 86 for guiding the core to the chuck body 82 is formed.
- the shaft cylinder 70 itself can be used as the core tank 83, and the core of the shaft cylinder 70 (core tank 80) can be formed. It has led to the chuck body 13 well.
- the sectional shape behind the slide member 80 is changed.
- the slide member 80 is formed in a substantially rectangular shape, and the corner is removed to slide on the inner wall surface of the shaft cylinder 70.
- the shape with the inner wall surface may be reversed.
- the gap 87 formed between the slide member 80 and the shaft cylinder 70 is It is smaller than the diameter of the core.
- the one shown in FIG. 30 is one in which minute projections (vertical ribs) 88 are formed on the surface of the slide member 80 and the inner wall surface of the barrel 70 is slid.
- the shapes of the slide member and the inner wall surface of the shaft cylinder may be reversed.
- the cross-sectional shape of the slide member may be formed in a circular shape, and minute projections may be formed on the inner wall surface of the barrel. Also in this example, the height of the projections 88 is smaller than the diameter of the core used. In each case, the sliding resistance of the slide member to the shaft cylinder is reduced. Further, in FIG. 31, the inner shape of the shaft cylinder 70 is formed as a hexagon, and the outer shape of the slide member 80 is formed as a hexagon. As described above, various shapes other than those exemplified can be adopted.
- the second example is a slide member having a circular cross section.
- the rotation of the slide member of the first example with respect to the shaft cylinder 70 is reliably prevented.
- An engaging portion 89 is formed on the outer surface of the inclined surface 84 of the slide member 80, and the engaging portion 89 is brought into surface contact with the side surface of the knock piece 72 (FIG. 3). 2, see Figure 33). That is, the rotation of the slide member 80 is prevented by the knock piece 72.
- a protrusion may be formed on the bottom of the slide member, and a sliding groove engaged with the protrusion may be formed on the inner wall surface of the shaft cylinder to prevent rotation.
- the third example is an example in which the core is easily inserted into the core insertion hole of the slide member.
- the upper end of the core insertion hole 86 of the slide member 80 may be formed in a conical shape (conical portion 90), or as shown in FIGS. 34 to 37.
- the inclined surface portion gradually decreases in diameter from the upper end of the inclined surface 84 to the center of the inner surface (core insertion hole 86). 90 may be formed.
- the fourth example is an example shown in FIG. 38, in which the core easily enters the slide member.
- a step portion 91 is formed on the inner wall surface of the shaft cylinder 70 at a rear portion of the slide member 80, and has a small-diameter portion 92 toward the rear. This prevents the core from catching on the rear end peripheral portion 93 of the slide member 80.
- the knock piece since the knock piece is directly in contact with the slide member, the entire length of the barrel can be reduced, and the center of the slide member can be formed on the inclined surface. As a result, the core oil contained in the core adheres to the inclined surface, so that the pressing operation (sliding operation) of the knock piece against the inclined surface (slide member) is improved. I have.
- a regulating portion 95 having a hole 94 into which only one core is inserted may be formed inside the shaft cylinder 70 behind the knock piece 72.
- a regulating portion 97 having a hole 96 into which only one core is inserted may be formed at the rear end of the knock piece 72. Since the core does not accumulate at the rear of the slide member 80, the core can be guided to the core insertion hole 86 satisfactorily. In other words, the regulating parts 95 and 97 become the substantial core receiving part, and the latter part becomes the core tank part.
- the present invention was applied to the one having the relay member, but as shown in Fig. 41, the tip member was directly attached to the tip of the barrel, and the centering mechanism was attached to the front part of the barrel. May be installed. This can further reduce the price.
- the corner at the front end of the knock piece is A notch 98, an inclined surface 99, or a rounded portion may be formed so as not to break the core due to such factors (see FIG. 42).
- the length of the notch 98 is, of course, such that the core does not pass through.
- the first example is the example shown in FIG. 43, in which the restricting portion 100 is opposite to the example shown in FIG. 40, that is, the restricting portion 100 is fitted into the shaft cylinder 70. It is formed so as not to be located in the through hole 71. As shown in FIG. 44, a large hole 101 into which the restricting portion 100 can be inserted is formed behind the through hole 71 of the shaft cylinder 70. By inserting the knock piece 72 through the through hole 71 and the large hole 101, it is possible to assemble it into the shaft cylinder 70, thereby simplifying the assembly.
- a locking projection 102 is formed at the rear end of the knock piece 72, and the locking projection 102 engages with the inner wall surface of the shaft cylinder 70, It prevents falling off from the barrel 70. Further, a projection 103 is formed on the bottom surface of the slide member 80, and the projection 103 engages with a groove 104 formed on the inner wall surface of the barrel 1, and the slide 103 is formed. The rotation of the sliding member 80 with respect to the shaft cylinder 70 is prevented (see FIG. 45).
- Fig. 46 the fulcrum of the radial movement of the barrel 70 of the knock piece 72 is changed, and the cross-sectional shape of the restricting portion 105 of the knock piece 72 is triangular.
- a stepped portion 106 is formed on the inner surface of the shaft cylinder 70, and a part of the rear end of the regulating portion 105 is engaged with the stepped portion 106. Then, this locking point is used as the fulcrum of the knock piece 72. Therefore, they were rotated (see Fig. 47).
- the outer diameter of the slide member 80 is adjusted so that the core does not enter the space between the slide member 80 and the shaft cylinder 70 or the elastic member 10.
- the diameter is substantially the same as the inner diameter of 70, but is not particularly limited.
- the barrel 70 itself is configured as a core tank behind the barrel 70, it is not necessary to configure the core tank as a separate member as shown in the prior art.
- the price can be reduced.
- the center of the knock piece is formed at the rear of the knock piece, the front and rear directions of the knock piece are clear, and when the knock piece is attached to the barrel, it is mistakenly inserted upside down. There is no way to wear (assemble). Also, since the front and rear directions of the knock pieces are clear, the direction can be determined quickly, and assembling can be easily and quickly performed, thereby improving productivity.
- the second example is an example shown in FIGS. 48 and 49, in which the core insertion hole 108 of the restricting portion 107 is formed in a slit shape.
- a through hole 71 is formed in the side wall of the barrel 70 in the longitudinal direction, and a knock U 72 having a U-shaped cross section is formed in the through hole 71 in the radial direction of the barrel 1.
- the knock piece 72 is rotatably mounted with its rear end as a fulcrum.
- a regulating part 107 having an outer diameter substantially the same as the inner diameter of the barrel 70 and having a shape slightly inclined forward in the axial direction (core bearing part) is provided.
- a regulating part 107 having an outer diameter substantially the same as the inner diameter of the barrel 70 and having a shape slightly inclined forward in the axial direction (core bearing part) is provided.
- a wall is formed in the middle part of the barrel 70 by the regulating portion 107, and the wall is formed behind the regulating portion 107 (see FIG. (Upper middle) is the core tank 108.
- a slit-shaped core insertion hole 109 is formed at the center of the restricting portion 107, but the core insertion hole 109 is formed so that the core can easily drop toward the core insertion hole 109.
- An inclined surface may be formed behind the hole 109.
- an inclined surface 110 is formed at the lower end (the end facing the side where the knock piece is formed) of the restricting portion 107. This is so that the end of the lower end of the regulating portion 107 does not contact the inner side surface of the shaft cylinder 70 when the knocking piece 72 is pressed.
- protrusions 112, 113 are formed at the front end and the rear end of the knock piece 3, respectively, and the protrusions 112, 113 are formed at the front end and the rear end of the through hole 71. Engagement with the inner surfaces 114, 115 prevents the shaft cylinder 70 from jumping out (falling out).
- FIG. 50 shows an example in which the slide member is prevented from rotating with respect to the barrel.
- the cross-sectional shape of the inside of the barrel is formed to be substantially rectangular, and the cross-sectional shape of the slide member 11 is also formed to be rectangular. It is.
- the shape of the restriction portion 115 of the knock piece 72 is also formed in a square shape.
- a protrusion 117 may be formed inside the shaft cylinder 70 where the slit 109 is located, and a groove 117 engaging with the protrusion may be formed in the slide member 80. Prevents rotation (see Fig. 51 and Fig. 52).
- FIG. 53 shows that the slits 118 are formed behind the knocking nozzles 72 so that the projections 113 have elasticity and the through holes 71 of the shaft cylinder 70 are notched. In addition to facilitating the insertion of the lock pieces 72 (see Fig. 54), it also prevents backlash in the longitudinal direction after insertion. It is stopped.
- the slits 118 may be formed in front of the knock pieces 72, and the projections 112 may have elasticity. Alternatively, the slits 118 may be formed in front of the knock pieces 72. Only the protrusions 1 1 and 2 may have elasticity. Further, as shown in FIG. 55, the protrusions 113 may be formed toward the inside of the knock 72. As described above, the positions of the protrusion and the slit can be appropriately selected.
- the modified example of the knock piece 72 shown in FIGS. 56 and 57 has a non-adjustable structure in which the projections 113 engaging with the through holes 72 of the barrel 70 are formed rearward.
- the knock piece 72 and the slide member 80 do not come into contact with each other in the pressed state.
- the force always acts in the direction in which the knock piece 72 is dropped from the shaft cylinder, but the drop is not caused by the engagement of the projections 11 and 12.
- the knock piece 72 is prevented from swinging by urging the knock piece 72 in the direction of dropping.
- a centering mechanism is arranged inside a barrel, and a knock piece is arranged on a side wall of the barrel so as to be able to be pressed radially inward.
- a core penetrating portion is provided, through which the core passes in the pressing direction of the knock piece, and
- the first gist is that the diameter of the insertion portion is at least twice as large as the diameter of the core, and that at least one core receiving portion is provided in front of the core insertion portion.
- a centering mechanism is arranged inside the cylinder, and a knocking piece is arranged on the side wall of the barrel so as to be able to be pressed radially inward.
- the pushing operation of the knocking piece moves the centering mechanism back and forth.
- these actions For a side-knock-type sharp pencil that pulls out the core from the barrel, at least one core receiving part is provided near the knock piece, and the core passes through the core receiving part.
- the second point is that the insertion hole is formed, and a space having a step area larger than the cross-sectional area of the core insertion hole is formed on both sides of the core receiving portion.
Landscapes
- Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE69633382T DE69633382T3 (de) | 1995-01-30 | 1996-01-26 | Füllminenstift mit seitlichem druckknopf |
| US08/875,454 US6065889A (en) | 1995-01-30 | 1996-01-26 | Side-knock type mechanical pencil |
| EP96901115A EP0806305B2 (en) | 1995-01-30 | 1996-01-26 | Side-knock mechanical pencil |
Applications Claiming Priority (16)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7/33065 | 1995-01-30 | ||
| JP3306595 | 1995-01-30 | ||
| JP7/64843 | 1995-02-28 | ||
| JP6484395 | 1995-02-28 | ||
| JP10076395 | 1995-03-31 | ||
| JP10076295 | 1995-03-31 | ||
| JP7/100762 | 1995-03-31 | ||
| JP7/100763 | 1995-03-31 | ||
| JP7/127173 | 1995-04-27 | ||
| JP12717395 | 1995-04-27 | ||
| JP15530695 | 1995-05-30 | ||
| JP7/155306 | 1995-05-30 | ||
| JP7/336159 | 1995-11-30 | ||
| JP7/336163 | 1995-11-30 | ||
| JP33616395 | 1995-11-30 | ||
| JP33615995 | 1995-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1996023666A1 true WO1996023666A1 (en) | 1996-08-08 |
Family
ID=27572145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP1996/000139 Ceased WO1996023666A1 (en) | 1995-01-30 | 1996-01-26 | Side-knock mechanical pencil |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US6065889A (ja) |
| EP (1) | EP0806305B2 (ja) |
| KR (1) | KR100428482B1 (ja) |
| DE (1) | DE69633382T3 (ja) |
| WO (1) | WO1996023666A1 (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5967684A (en) * | 1998-08-21 | 1999-10-19 | Huang; Kuang-Yen | Pen with push-button |
| US6082916A (en) * | 1997-10-27 | 2000-07-04 | Kotobuki & Co., Ltd. | Mechanical pencil |
| JP3539070B2 (ja) | 1996-04-30 | 2004-06-14 | ぺんてる株式会社 | サイドノック式シャ−プペンシル |
| JP2007508968A (ja) * | 2003-10-22 | 2007-04-12 | ソシエテ ビック | 側面ボタンを備えている筆記用具 |
| WO2017137697A1 (fr) * | 2016-02-11 | 2017-08-17 | Societe Bic | Portemine a bouton lateral et distribution de gomme et procede d'assemblage |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3490008B2 (ja) * | 1998-12-25 | 2004-01-26 | 株式会社壽 | サイドノック式ボールペン |
| US6755584B2 (en) | 2002-01-24 | 2004-06-29 | Bic Corporation | Writing instrument |
| USD496730S1 (en) | 2003-03-17 | 2004-09-28 | Becton, Dickinson & Company | Surgical knife safety handle |
| TW200509851A (en) | 2003-04-22 | 2005-03-16 | Becton Dickinson Co | Surgical knife safety handle |
| US7022128B2 (en) * | 2003-04-22 | 2006-04-04 | Becton, Dickinson And Company | Surgical knife safety handle |
| US20050034574A1 (en) * | 2003-08-15 | 2005-02-17 | Chih - Ching Hsien | Hand tool having an extendable handle structure |
| JP4468002B2 (ja) | 2004-02-02 | 2010-05-26 | 壽印刷紙工株式会社 | サイドノック式繰出し機構 |
| TWI369970B (en) * | 2004-10-20 | 2012-08-11 | Beaver Visitec Int Us Inc | Surgical knife safety handle having user operable lock |
| USD571010S1 (en) | 2006-10-17 | 2008-06-10 | Becton, Dickinson And Company | Surgical knife safety handle |
| JP4533459B2 (ja) | 2007-10-26 | 2010-09-01 | 三菱鉛筆株式会社 | シャープペンシル |
| US8464430B2 (en) | 2008-02-07 | 2013-06-18 | Beaver-Visitec International (Us), Inc. | Retractable safety knife |
| USD626592S1 (en) * | 2009-12-31 | 2010-11-02 | Holland Usa, Inc. | Push button for a writing instrument |
| USD628635S1 (en) * | 2010-01-20 | 2010-12-07 | Beifa Group Co., Ltd. | Pen |
| CN101797858A (zh) | 2010-03-17 | 2010-08-11 | 王元鸿 | 侧按活动铅笔 |
| FR3009699B1 (fr) | 2013-08-13 | 2016-10-28 | Maped | Porte-mine equipe d’une cartouche de mines amovible |
| US10272714B2 (en) | 2016-12-06 | 2019-04-30 | Sanford L.P. | Anti-rotation extendable eraser mechanism |
| KR200495421Y1 (ko) * | 2017-11-24 | 2022-05-19 | 동아연필(주) | 노크식 펜 |
| CN110936754B (zh) * | 2019-12-22 | 2020-09-22 | 杭州简弈科技有限公司 | 一种凸位按压拔笔 |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5212489Y2 (ja) * | 1973-03-13 | 1977-03-19 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1518822A (en) * | 1924-03-26 | 1924-12-09 | Saadi Edward | Pencil |
| DE1020256B (de) * | 1953-06-08 | 1957-11-28 | Pelikan Werke Wagner Guenther | Handschreibgeraet mit durch Querdruck auf einen querelastischen Teil des Schreibgeraeteschaftes laengsbeweglich gefuehrter Klemmzange |
| US3075496A (en) * | 1959-04-10 | 1963-01-29 | Sheaffer W A Pen Co | Writing instrument construction |
| US3883253A (en) * | 1972-03-03 | 1975-05-13 | Pentel Kk | Mechanical pencil |
| JPS5017033U (ja) † | 1973-06-07 | 1975-02-24 | ||
| JPS5212489A (en) * | 1975-07-17 | 1977-01-31 | Matsushita Electric Ind Co Ltd | Connector |
| JPS5845913Y2 (ja) † | 1978-02-15 | 1983-10-19 | 三菱鉛筆株式会社 | シヤ−プペンシル |
| JPS5836559Y2 (ja) * | 1979-05-26 | 1983-08-17 | 三菱鉛筆株式会社 | ヘツド及びサイドノツク式シヤ−プペンシル |
| US4619539A (en) * | 1984-02-13 | 1986-10-28 | Kotobuki & Co, Ltd. | Mechanical pencil equipped with lead-storing cartridge |
| DE3514012C1 (de) * | 1985-04-18 | 1986-04-10 | Elmar 6967 Buchen Gehrig | Kugelschreiber |
| DE8612809U1 (de) * | 1986-05-10 | 1986-07-03 | Keil, Georg, 64401 Groß-Bieberau | Schreibstift |
| JPH0634155Y2 (ja) † | 1988-12-12 | 1994-09-07 | 株式会社壽 | 軸体先端部の出没機構 |
| JPH035020A (ja) † | 1989-06-01 | 1991-01-10 | Kurimoto Ltd | ベンディングロールによる鋼板のu曲げ方法 |
| JP3139002B2 (ja) * | 1990-03-15 | 2001-02-26 | ぺんてる株式会社 | 押出し式筆記具 |
| JPH04153099A (ja) * | 1990-10-18 | 1992-05-26 | Iwasaki Kinzoku Kogyo Kk | サイドノック式筆記具 |
| JP3501418B2 (ja) * | 1994-07-22 | 2004-03-02 | 株式会社壽 | サイドノック式シャープペンシル |
-
1996
- 1996-01-26 KR KR1019970705122A patent/KR100428482B1/ko not_active Expired - Lifetime
- 1996-01-26 WO PCT/JP1996/000139 patent/WO1996023666A1/ja not_active Ceased
- 1996-01-26 EP EP96901115A patent/EP0806305B2/en not_active Expired - Lifetime
- 1996-01-26 DE DE69633382T patent/DE69633382T3/de not_active Expired - Lifetime
- 1996-01-26 US US08/875,454 patent/US6065889A/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5212489Y2 (ja) * | 1973-03-13 | 1977-03-19 |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3539070B2 (ja) | 1996-04-30 | 2004-06-14 | ぺんてる株式会社 | サイドノック式シャ−プペンシル |
| US6082916A (en) * | 1997-10-27 | 2000-07-04 | Kotobuki & Co., Ltd. | Mechanical pencil |
| US5967684A (en) * | 1998-08-21 | 1999-10-19 | Huang; Kuang-Yen | Pen with push-button |
| JP2007508968A (ja) * | 2003-10-22 | 2007-04-12 | ソシエテ ビック | 側面ボタンを備えている筆記用具 |
| WO2017137697A1 (fr) * | 2016-02-11 | 2017-08-17 | Societe Bic | Portemine a bouton lateral et distribution de gomme et procede d'assemblage |
| FR3047690A1 (fr) * | 2016-02-11 | 2017-08-18 | SOCIéTé BIC | Portemine a bouton lateral et distribution de gomme et procede d'assemblage |
| CN108698434A (zh) * | 2016-02-11 | 2018-10-23 | 法商Bic公司 | 带有侧按钮和橡皮分配器的机械铅笔及组装方法 |
| US10668766B2 (en) | 2016-02-11 | 2020-06-02 | Societe Bic | Mechanical pencil with a side button and an eraser dispenser and a method of assembly |
| CN108698434B (zh) * | 2016-02-11 | 2020-12-25 | 法商Bic公司 | 带有侧按钮和橡皮分配器的机械铅笔及组装方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0806305B1 (en) | 2004-09-15 |
| EP0806305A4 (en) | 2000-01-12 |
| US6065889A (en) | 2000-05-23 |
| DE69633382D1 (de) | 2004-10-21 |
| EP0806305B2 (en) | 2009-03-18 |
| EP0806305A1 (en) | 1997-11-12 |
| DE69633382T3 (de) | 2010-08-26 |
| KR100428482B1 (ko) | 2004-07-27 |
| KR19980701726A (ko) | 1998-06-25 |
| DE69633382T2 (de) | 2005-09-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1996023666A1 (en) | Side-knock mechanical pencil | |
| US4653949A (en) | Writing or drafting instrument with cap actuator | |
| JP3694958B2 (ja) | サイドノック式シャ−プペンシル | |
| WO1992015462A1 (fr) | Porte-mine du type a secousses | |
| EP0407002A1 (en) | Device for advancing and retracting writing element in writing instrument | |
| EP0538503B1 (en) | A rotary-cam ball-point pen | |
| JP2009034879A (ja) | ボールペン | |
| EP0739276B1 (en) | A writing implement | |
| JP3870908B2 (ja) | サイドノック式シャ−プペンシル | |
| JPH07285291A (ja) | 芯体繰り出し具 | |
| JP3539070B2 (ja) | サイドノック式シャ−プペンシル | |
| HUT76110A (en) | Mechanical lead pencil and modular lead advancing mechanism | |
| KR200144138Y1 (ko) | 필기구 케이스 | |
| JPH0440953Y2 (ja) | ||
| US4806038A (en) | Knock type mechanical pencil connection | |
| JP3588914B2 (ja) | カッタ− | |
| JP4574972B2 (ja) | 出没式筆記具 | |
| KR880003396Y1 (ko) | 샤아프 펜슬 | |
| JPH081692Y2 (ja) | スライド式化粧具 | |
| JP2004084789A (ja) | 螺合構造 | |
| JP2005178243A (ja) | 出没式筆記具 | |
| JP5750315B2 (ja) | 振出式シャープペンシル | |
| JPH09183297A (ja) | 多芯筆記具 | |
| JP3901087B2 (ja) | クリップ | |
| JPH0335593Y2 (ja) |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 96191658.3 Country of ref document: CN |
|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): CN KR US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LU MC NL PT SE |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 1019970705122 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 08875454 Country of ref document: US |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 1996901115 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1996901115 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1019970705122 Country of ref document: KR |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1019970705122 Country of ref document: KR |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1996901115 Country of ref document: EP |