JP2017159084A - Pencil of various types - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pencil of various types allowing a drawing material formed of a soft material to be used, and capable of improving usability.SOLUTION: A pencil 100 of various types includes: a body 3; a tip cylinder 2; slide parts 8A-8D; pipe materials 1A-1D; a moving body provided in the rear side of the pipe materials 1A-1D and having in the outer periphery a male screw screwed with a female screw; and holders 6A-6D holding the moving body therein. The holders 6A-6D have a hole part into which the moving body is inserted, and an elastic part for giving elastic force from the outside to the moving body inserted into the hole part. The moving body advances together with a drawing material M1 by the screwing action of the male screw and the female screw by relatively rotating the tip cylinder 2 and the body 3 in a state in which the pipe material 1A advances due to the advancement of the arbitrary one slide part 8A.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a multi-purpose pencil that extrudes and uses one of a plurality of drawing materials.

  As a conventional multi-purpose pencil, for example, one described in Japanese Utility Model Laid-Open No. 5-39418 is known. In this publication, a cosmetic body having a cylindrical main body having a plurality of vertical holes and a tapered cylinder that is rotatably fitted to the front part of the main body and is formed so that the front part is reduced as an external configuration. The feed container is described. Inside the cosmetic feed container, there are a plurality of extruded pieces having push buttons protruding from the vertical holes of the main body, a plurality of spiral cylinders connected to the front part of each extruded piece, and a front part of each helical cylinder. A plurality of connecting pipes that are movably connected and a plurality of holding cylinders provided at the front of each connecting pipe are provided. A rectangular insertion hole is provided at the tip of the tapered cylinder, and the holding cylinder is formed in a rectangular shape that can be inserted into the insertion hole of the tapered cylinder. Further, a push rod having a protruding portion is inserted inside the spiral tube and the connecting tube, and the protruding portion of the push rod is screwed into a spiral in the spiral tube. A lead chuck to which a stick-shaped cosmetic is attached is connected to the front portion of the push rod.

  In the cosmetic supply container of the above publication, when one extruded piece is advanced along the vertical hole, the spiral cylinder, the connecting pipe, the holding cylinder, the push rod, and the core chuck are integrally advanced. The holding cylinder advances along the inner surface of the tapered cylinder, and is inserted into the insertion hole in a non-rotatable manner in a state where the spiral cylinder and the connecting pipe are bent. When the taper cylinder is rotated in one direction with respect to the main body in this state, the holding cylinder, the connecting pipe, and the push rod rotate together with the taper cylinder. Then, the push rod moves forward with respect to the spiral tube, and the core chuck also moves forward, whereby the cosmetic is pushed forward from the holding tube.

Japanese Utility Model Publication No. 5-39418

  In the cosmetic supply container as described above, when the taper tube is rotated in the other direction with respect to the main body, the push rod moves backward with respect to the spiral tube. Since the core chuck connected to the front portion of the push rod holds a drawing material such as a bar-shaped cosmetic, the drawing material held by the core chuck is also pulled back as the push rod moves backward. Since the drawing chuck is configured to retract the drawing material while the drawing material grips the drawing material in this way, the drawing material must be made of a material that is hard to some extent, and a drawing material made of a soft material is used. There is a problem that can not be. Further, in the cosmetic supply container as described above, it is assumed that the drawing material is retracted more than necessary, and in this case, the drawing material must be moved forward at the next use, so that the usability point There is room for improvement.

  Accordingly, an object of the present invention is to provide a multi-purpose pencil that can use a drawing material made of a soft material and can improve usability.

  In order to solve the above problems, the multi-purpose pencil according to the present invention is provided on each of a cylindrical main body, a cylindrical front cylinder engaged with the main body, and a plurality of drawing materials held inside the front cylinder. A plurality of slide parts connected to each other so as to be slidable with respect to the main body, a pipe member disposed inside the front tube and loaded with the drawing material, and extending in the axial direction behind the drawing material. And a movable body provided on the outer periphery with a male screw that engages with a female screw provided on the rear side of the pipe member, and a holding body that is disposed on the rear side of the female screw and holds the movable body inside. The holding body includes a hole portion into which the moving body is inserted, and an elastic portion that gives an elastic force from the outside to the moving body inserted into the hole portion, and is arbitrarily selected from the plurality of slide portions. The pipe material advances as one slide part moves forward by a certain amount relative to the main body. By relatively rotating the body in one direction, the moving body is advanced together with the drawing material in the meshing operation of the male thread and the female thread.

  In this multi-purpose pencil, a drawing material is connected to each slide part, and the pipe material moves forward when an arbitrary one slide part moves forward by a certain amount with respect to the main body. The drawing material advances by being relatively rotated in one direction. In this way, the drawing material should be considered to be pushed forward by relative rotation in one direction. Therefore, for example, a configuration in which the drawing material is retreated while being gripped becomes unnecessary, so even a drawing material made of a soft material that is difficult to grip can be used for various pencils. In the multi-pencil of the present invention, since the drawing material does not move backward, there is no problem that the drawing material has to be further advanced at the next use. Therefore, usability can be improved. Furthermore, the multi-purpose pencil of the present invention includes a male screw that is screwed with a female screw provided on the rear side of the pipe material, and a holding body that is disposed on the rear side of the female screw and holds the movable body inside. The holding body has an elastic portion that applies an elastic force from the outside to the moving body inserted into the hole. Therefore, since the moving body in the hole can be held by the elastic force from the outside by the elastic portion, the moving body is attached to the holding body by applying the elastic force, and the moving body is held by releasing the elastic force. Can be removed from. Therefore, the moving body can be freely attached to and detached from the holding body.

  In addition, the front end of the moving body has a cylindrical shape with a flat bottom surface, and the bottom surface may push the drawing material forward so that the drawing material may advance. In this case, a core chuck for gripping the drawing material is not required, and the drawing material can be pushed forward at the bottom surface at the front end of the cylindrical moving body.

  Moreover, the cross section of the moving body is non-circular, and the hole may be non-circular corresponding to the cross-sectional shape of the moving body. In this case, by inserting a moving body having a non-circular cross section into the non-circular hole, the holding body can be engaged in the rotation direction of the moving body, and the holding body functions as a detent for the moving body. Can do.

  According to the present invention, it is possible to use a drawing material made of a soft material and improve usability.

It is a side view which shows the multi-functional pencil which concerns on this embodiment. It is a perspective view which shows the state which removed the front tube and the cartridge from the multi-functional pencil of FIG. It is a cross-sectional perspective view which shows the multi-functional pencil of FIG. It is a cross-sectional perspective view which shows the state which moved the slide part ahead in the multi-functional pencil of FIG. It is a perspective view which shows each component arrange | positioned inside the multi-type pencil of FIG. It is a perspective view which shows each component which comprises the external appearance of the multi-type pencil of FIG. It is a cross-sectional perspective view which shows a front tube. (A) is a perspective view which shows a middle cylinder, (b) is a cross-sectional perspective view which shows a middle cylinder. It is the sectional view on the AA line of FIG. It is the fragmentary sectional perspective view of a holding body, and the perspective view of an O-ring. It is a perspective view of a moving body. It is a cross-sectional perspective view of a screw cylinder. It is a perspective view which shows a pipe material and a drawing material. It is a perspective view which shows a slide part. (A) is a perspective view which shows a main body, (b) is a cross-sectional perspective view which shows a main body.

  Embodiments of the present invention will be described below with reference to the drawings. In the following description, the same or corresponding elements are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a side view showing the external appearance of the multi-type pencil according to the present embodiment, and FIG. 2 is a perspective view showing a state where the front tube and the cartridge are removed from the multi-type pencil of FIG. As shown in FIGS. 1 and 2, the multi-purpose pencil 100 of the present embodiment operates one of a plurality of drawing materials M1 to M4 loaded inside each of the four pipe materials 1A to 1D by a user's operation. Are discharged (extruded) as appropriate. In the present embodiment, the drawing materials M1 to M4 indicate drawing materials having different colors.

  Examples of the drawing materials M1 to M4 include various stick-shaped cosmetics such as lipstick, lip gloss, eyeliner, eyebrow, lip liner, teak color, concealer, beauty stick, hair color, nail art, or stationery. It is possible to use a rod-shaped core or the like. Furthermore, it is preferable to use a rod-like material that is very soft (semi-solid, soft solid, soft, jelly, mousse and kneaded shapes containing these). Further, it is possible to use a thin rod having an outer diameter of 1 mm or less, a general rod having an outer diameter of 1.5 mm to 3.0 mm, or a thick rod having an outer diameter of 4.0 mm or more.

  The multi-type pencil 100 is connected to the front tube 2 including pipe materials 1A to 1D loaded with the drawing materials M1 to M4 and the rear end portion of the front tube 2 and is engaged with the front tube 2 so as to be relatively rotatable. The main body 3 is provided as an external configuration. In the following description, “axis” indicates the center line of the multi-purpose pencil 100 extending in the front-rear direction of the multi-purpose pencil 100, and “axis direction” indicates the front-rear direction and the direction along the axis. In addition, the drawing direction of the drawing materials M1 to M4 is defined as the front (advancing direction), and the opposite direction is defined as the rear.

  A screw cylinder 4A is engaged with the rear portion of the pipe member 1A so as to be capable of synchronous rotation, and a rod-like moving body 5A having a male screw 5a is screwed into the screw cylinder 4A. The pipe member 1A, the screw cylinder 4A, and the moving body 5A constitute a cartridge 10A that can be exchanged for the main body 3. The pipe materials 1B to 1D have the same configuration as the pipe material 1A, and cartridges 10B to 10D are constituted by the pipe materials 1B to 1D, the screw cylinders 4B to 4D, and the moving bodies 5B to 5D, respectively.

  As shown in FIGS. 2 to 4, at the rear of the cartridge 10A, a cylindrical holding body 6A that holds the moving body 5A, and an O-ring (elastic portion) that applies an elastic force to the holding body 6A from the outside. ) 7A, a slide part 8A that is engaged with the holding body 6A at the rear part of the holding body 6A so as to be able to rotate synchronously, and a spring 9A that urges the slide part 8A rearward. As shown in FIGS. 3 to 5, the holding bodies 6 </ b> B to 6 </ b> D, O-rings 7 </ b> B to 7 </ b> D, slide portions 8 </ b> B to 8 </ b> D, and springs 9 </ b> B to 9D is provided.

  As described above, the pipes 1A to 1D loaded with the drawing materials M1 to M4, the moving bodies 5A to 5D, the screw cylinders 4A to 4D, and the O-rings 7A to 7A are placed inside the front tube 2 and the main body 3. 7D, holding bodies 6A to 6D, springs 9A to 9D, and slide portions 8A to 8D are provided. The pipe members 1A to 1D, the moving bodies 5A to 5D, the screw cylinders 4A to 4D, the O-rings 7A to 7D, the holding bodies 6A to 6D, the springs 9A to 9D, and the slide portions 8A to 8D are different from each other. The configuration is the same except that the materials M1 to M4 are loaded.

  Therefore, in the following description, each of the pipe members 1A to 1D, the moving bodies 5A to 5D, the screw cylinders 4A to 4D, the O-rings 7A to 7D, the holding bodies 6A to 6D, the springs 9A to 9D, and the slide portions 8A to 8D. These are simply referred to as pipe material 1, moving body 5, screw cylinder 4, O-ring 7, holding body 6, spring 9 and slide portion 8. The cartridges 10A to 10D and the drawing materials M1 to M4 are simply referred to as the cartridge 10 and the drawing material M, respectively.

  As shown in FIGS. 3, 4, and 6, the middle cylinder 11 is engaged with the front end of the main body 3 so as to be able to rotate synchronously, and four holding bodies 6 are held inside the middle cylinder 11. The The middle cylinder 11 and the front cylinder 2 are provided with a ratchet mechanism 12 that allows relative rotation between the front cylinder 2 and the main body 3 (middle cylinder 11) only in one direction. The ratchet mechanism 12 restricts relative rotation between the front tube 2 and the main body 3 in the other direction, which is the opposite direction of the one direction.

  FIG. 7 is an enlarged cross-sectional perspective view of the front tube 2 of FIG. As shown in FIG. 7, the front tube 2 is formed of ABS resin (acrylonitrile / butadiene / styrene copolymer synthetic resin), has a cylindrical shape, and an opening for allowing the front portion of the pipe material 1 to appear at the front end. Part 2a. A housing area 2b for housing the four cartridges 10 and the four holding bodies 6 is provided inside the front tube 2, and of the four pipe members 1 provided in the housing area 2b. Either one is exposed forward from the opening 2a according to the user's operation.

  On the front side of the outer peripheral surface of the front tube 2, an inclined surface 2 c that is inclined so as to taper toward the front is provided. The inner peripheral surface 2d on the front side of the front tube 2 is also tapered toward the front side. On the inner peripheral surface 2d, a large number of convex portions are arranged in parallel in the circumferential direction so as to engage the pipe material 1 in the rotation direction (direction around the axis), and the convex portions are inclined to the inner peripheral surface 2d. A protrusion 2e extending in the direction for a predetermined length is provided. The interval between the protrusions in the protrusion 2e is shortened toward the front side.

  Provided on the rear side of the inner peripheral surface of the front tube 2 is an uneven portion 2f that constitutes one of the ratchet mechanisms 12 and that 24 uneven portions are arranged in the circumferential direction and the uneven portions extend a predetermined length in the axial direction. It has been. In addition, annular recesses 2g and 2h for engaging the middle cylinder 11 in the axial direction at the rear portion of the front tube 2 are provided on the rear side of the uneven portion 2f on the inner peripheral surface of the front tube 2.

  8A is an enlarged perspective view of the middle cylinder 11 in FIG. 6, and FIG. 8B is a sectional perspective view in which the middle cylinder 11 in FIG. 6 is enlarged. The middle cylinder 11 is an injection-molded product made of POM (polyacetal) and has a stepped cylindrical outer shape. The middle cylinder 11 includes a front end cylinder part 11a, a central cylinder part 11b having a larger outer diameter than the front end cylinder part 11a, a rear end cylinder part 11c having a smaller outer diameter than the front end cylinder part 11a and the central cylinder part 11b, In this order from the front to the rear.

  The front end cylinder part 11a includes a protruding part 11e constituting the other side of the ratchet mechanism 12 at a pair of positions facing each other on the inner peripheral surface 11d thereof. The protrusion 11e is engaged with the concave and convex portion 2f of the front tube 2 in the rotational direction, and is provided so as to protrude outward in the radial direction. A U-shaped notch 11f that communicates the inside and the outside of the middle cylinder 11 is formed around the protrusion 11e in the front end cylinder part 11a, and the protrusion 11e is elastic in the radial direction by the notch 11f. doing. The protrusion 11e of the middle cylinder 11 is always in contact with the concavo-convex part 2f of the front cylinder 2.

  9 is a cross-sectional view taken along line AA in FIG. As shown in FIG. 9, the concavo-convex portion 2 f of the front tube 2 constituting one side of the ratchet mechanism 12 includes an inclined surface 2 f 1 that is inclined with respect to the inner peripheral surface of the front tube 2 and the inner periphery of the front tube 2. And a side surface 2f2 formed so as to be substantially perpendicular to the surface. Further, the protrusion 11 e of the middle cylinder 11 constituting the other side of the ratchet mechanism 12 is substantially perpendicular to the inclined surface 11 e 1 that is inclined with respect to the outer circumferential surface of the middle cylinder 11 and the tangent to the outer circumferential surface of the middle cylinder 11. And a side surface 11e2 formed to be

  As shown in FIG. 8, the notch 11f of the middle cylinder 11 has a pair of slits 11g and 11h that are formed on both sides in the axial direction of the protrusion 11e in the front end cylinder part 11a and extend in the circumferential direction, and the front end cylinder part. 11a includes a slit 11j which is formed on one side in the circumferential direction of the protrusion 11e and extends in the axial direction continuously to the slits 11g and 11h. The wall part surrounded by the notch 11f in the front end cylinder part 11a forms an arm 11k having flexibility in the radial direction. Therefore, the protrusion 11e arranged on the outer surface of the tip of the arm 11k has an elastic force (biasing force) in the radial direction.

  On the outer peripheral surface of the central cylinder portion 11b of the middle cylinder 11, there are provided a protrusion 11m that engages with the annular recess 2g of the front cylinder 2 and an annular protrusion 11n that enters the annular recess 2h of the front cylinder 2 from the rear. Yes. An annular flange portion 11p is provided at the rear portion of the annular convex portion 11n on the outer peripheral surface of the central cylinder portion 11b, and an insertion portion in which a cylindrical portion in front of the flange portion 11p is inserted into the front tube 2 from the rear side. Has been.

  A protrusion 11q for engaging with the main body 3 in the rotational direction is formed on the rear end cylinder portion 11c of the middle cylinder 11 so as to extend in the axial direction. The ridges 11q are formed at equal circumferential positions on the outer peripheral surface of the rear end cylinder portion 11c. Moreover, the convex part 11r for engaging in the axial direction with respect to the main body 3 is formed in the rear side of the collar part 11p, and this convex part 11r is extended in the circumferential direction between the protrusion 11q. Yes.

  The middle cylinder 11 is divided into left and right in the figure by a holding body accommodating portion 11s which is a disk-shaped portion through which the four holding bodies 6 are inserted in the axial direction inside the collar portion 11p. The holding body accommodating portion 11s is provided with circular openings 11t through which the holding body 6 is inserted in the axial direction at four equally spaced positions in the circumferential direction.

  In the middle cylinder 11, the front end cylinder part 11 a and the central cylinder part 11 b are inserted into the front cylinder 2 from the rear side of the front cylinder 2. At this time, the protrusion 11e of the front end cylinder part 11a is engaged with the concavo-convex part 2f of the front cylinder 2 in the rotation direction, the protrusion 11m of the center cylinder part 11b is engaged with the annular recess 2g of the front cylinder 2, and the center The annular convex portion 11n of the cylindrical portion 11b enters the annular concave portion 2h of the leading cylinder 2.

  FIG. 10 is a partial cross-sectional perspective view showing the O-ring 7 and the holding body 6. The holding body 6 has a rod-like outer shape as a whole. For example, POM is used as the material of the holder 6. The holding body 6 is provided on the front side thereof and has a cylindrical moving body holding part 6b having a hole 6a for receiving the moving body 5, and a round bar-like bar extending in the axial direction at the rear part of the moving body holding part 6b. Part 6c.

  The moving body holding portion 6b of the holding body 6 includes a pair of slits 6d that extend a predetermined length rearward from the front end and are opposed to each other on the inner peripheral surface of the moving body holding portion 6b. With the slit 6d, the front end of the movable body holding portion 6b can be expanded radially outward. An annular recess 6e for inserting the O-ring 7 is provided on the outer peripheral surface of the portion where the slit 6d of the moving body holding portion 6b is provided. By inserting the O-ring 7 into the annular recess 6e, the moving body 5 held by the moving body holding portion 6b is tightened inward, and the moving body 5 is prevented from coming off from the moving body holding portion 6b.

  In a pair of positions facing each other inside the moving body holding portion 6b in the holding body 6, a plane portion 6j for synchronously rotating the moving body 5 is provided. The cross-sectional shape of the hole 6a when the moving body holding portion 6b is cut by a plane perpendicular to the axial direction by the flat portion 6j is noncircular. Further, in the plane portion 6j, three oval through holes 6k extending in the axial direction penetrate the inside and outside of the holding body 6 so as to support the core pin so that the core pin is not inclined by the injection pressure at the time of molding. It is provided as follows. The rod-like portion 6c behind the movable body holding portion 6b configured as described above is inserted in the axial direction into the opening 11t of the holding body accommodating portion 11s of the middle cylinder 11.

  On the rear side of the rod-shaped portion 6c of the holding body 6, a protrusion 6f that is engaged with the slide portion 8 in the rotational direction is formed to extend in the axial direction, and this protrusion 6f is an outer peripheral surface of the rod-shaped portion 6c. It is formed in the position of four equal intervals in the circumferential direction. Further, on the rear side of the rod-like portion 6c, a convex portion 6g that is engaged with the slide portion 8 in the axial direction is formed, and this convex portion 6g extends in the circumferential direction between the protrusions 6f. Yes. Further, at the rear end of the rod-like portion 6c, there is provided a rod-like projection portion 6h that projects further rearward in a state where the diameter is reduced from the portion where the protrusion 6f is provided, and this projection portion 6h slides together with the spring 9. It is used as a guide for facilitating assembly in the part 8.

  FIG. 11 is a perspective view of the moving body 5. The moving body 5 has a rod-like outer shape. For example, POM is used as the material of the moving body 5. The movable body 5 includes a male screw 5a and a flat surface portion 5b pressed against the flat surface portion 6j (see FIG. 9) of the holding body 6 on the outer peripheral surface thereof. When the male screw 5a and the flat surface portion 5b are cut by the flat surface portion 5b in a plane orthogonal to the axial direction, the shape is a non-circular shape corresponding to the hole portion 6a of the holding body 6.

  The pitch of the male screw 5a in the moving body 5 (the distance between the screw threads of the male screw 5a in the axial direction) is 0.3 mm or more and 1.0 mm or less, and more preferably 0.4 mm. Since the pitch of the conventional male screw is generally 2.0 mm or more and 6.0 mm or less, the pitch of the male screw 5a is a minute pitch shorter than the pitch of the general male screw.

  The flat portion 5b of the moving body 5 is provided so as to extend in the axial direction at a portion where the male screw 5a is provided, and is provided at a pair of positions facing each other on the outer peripheral surface of the moving body 5. The male screw 5a and the flat surface portion 5b in the moving body 5 are inserted from the front into the moving body holding portion 6b with the clearance between the flat surface portion 5b and the flat surface portion 6j of the moving body holding portion 6b. And the protrusion provided inside the moving body holding | maintenance part 6b and the male screw 5a of the moving body 5 fit, and the moving body 5 is hold | maintained with respect to the moving body holding | maintenance part 6b. In addition, a columnar pushing portion 5 c that pushes the drawing material M in the pipe material 1 forward is provided at the front end of the moving body 5. The extruded portion 5c includes a flat bottom surface 5d located at the front end thereof, a side surface 5e extending in the circumferential direction, and a tapered surface 5f that is inclined with respect to the bottom surface 5d and continues to the bottom surface 5d and the side surface 5e. . The flat bottom surface 5d in the extrusion part 5c is a surface for extruding the drawing material M forward.

  FIG. 12 is a cross-sectional perspective view of the screw cylinder 4. The screw cylinder 4 has a substantially cylindrical shape. For example, POM is used as the material of the screw cylinder 4. On the rear side of the inner peripheral surface of the screw cylinder 4, a female screw 4a for moving the moving body 5 is formed. The pitch of the female screw 4a in the screw cylinder 4 (the distance between the screw threads of the female screw 4a in the axial direction) is a minute pitch shorter than the pitch of a general female screw, like the male screw 5a of the moving body 5. . Further, a recess 4b for engaging the rear end of the pipe material 1 at the front end of the screw cylinder 4 is provided on the front side of the screw cylinder 4, and the recess 4b extends the front end of the screw cylinder 4 by a predetermined length. It has a trapezoidal shape that is notched to the rear. The recesses 4 b are provided at a pair of positions facing each other on the inner peripheral surface of the screw cylinder 4.

  A hole 4c for engaging the rear end of the pipe material 1 is provided behind the recess 4b in the screw cylinder 4, and the hole 4c is provided so as to penetrate inside and outside of the screw cylinder 4. ing. The hole 4 c has a shape extending in the circumferential direction, and is provided at a pair of positions facing each other on the inner peripheral surface of the screw cylinder 4.

  FIG. 13 is a perspective view of the pipe material 1 and the drawing material M. FIG. The pipe material 1 has a substantially cylindrical shape. For example, PP (polypropylene) is used as the material of the pipe material 1. The pipe material 1 can be easily identified by coloring the same color as the drawing material M or by using a transparent material. Since the inner surface of the pipe material 1 (the loading area of the drawing material M) has a flat shape without a step, the drawing material M can be easily loaded over the entire inner surface of the pipe material 1 by suction or the like. It has become. The front end portion of the outer peripheral surface of the pipe material 1 is assumed to be engaged with the protrusion 2e of the front tube 2 in the rotational direction, and a large number of concave portions are arranged in the circumferential direction so that the concave portions extend a predetermined length in the axial direction. An oval groove 1a is provided.

  On the rear side of the outer peripheral surface of the pipe member 1, an annular flange 1b, a protrusion 1c with which the recess 4b of the screw cylinder 4 engages at the rear of the flange 1b, and a screw cylinder 4 behind the protrusion 1c. 1d to be fitted into the hole 4c. Thereby, the pipe member 1 and the screw cylinder 4 are engaged in the axial direction and can be rotated synchronously. The height of the flange portion 1b with respect to the outer peripheral surface of the pipe material 1, the height of the protruding portion 1c with respect to the outer peripheral surface of the pipe material 1, and the height of the screw cylinder 4 engaged with the outer peripheral surface are substantially the same.

  The protruding portion 1c of the pipe material 1 has a trapezoidal shape extending rearward from the flange portion 1b of the pipe material 1 by a predetermined length. The protruding portions 1 c are provided at a pair of positions facing each other on the outer peripheral surface of the pipe material 1. The protrusions 1 d of the pipe material 1 have a shape extending in the circumferential direction, and are provided at a pair of positions facing each other on the outer peripheral surface of the pipe material 1. The pipe member 1 configured in this manner is engaged with the screw cylinder 4 from the rear. At this time, the projecting portion 1c of the pipe member 1 is fitted into the recess 4b of the screw cylinder 4, and the pipe The protrusion 1 d of the material 1 is fitted into the hole 4 c of the screw cylinder 4 from the inside of the screw cylinder 4.

  FIG. 14 is a perspective view of the slide portion 8. As a material of the slide part 8, for example, ABS resin is used. The color of the slide portion 8 is, for example, the same as the color of the corresponding drawing material M, and by sliding the slide portion 8 of the desired color forward by a certain amount, the drawing material M of the desired color is first moved. The tube 2 can be exposed forward from the opening 2a.

  The slide part 8 has a shape extending in the axial direction. On the front side of the slide portion 8, there is provided a hole portion 8a into which the protruding portion 6h of the holding body 6 is inserted from the front, and the convex portion 6g of the holding body 6 is engaged with the hole portion 8a in the axial direction. In addition, a protrusion 8b and a window 8c are provided to engage the protrusion 6f of the holding body 6 in the rotation direction. A notch 8d extending in the axial direction is provided in the hole 8a so as to communicate therewith. Further, a flat surface 8 e against which one end of the spring 9 abuts is provided at the front end of the slide portion 8.

  A projecting portion 8f for pulling back the other slide portion 8 rearward is provided behind the window portion 8c in the slide portion 8. The projecting portion 8f projects inward of the main body 3 and extends in the axial direction. ing. At the rear end of the slide portion 8, a protrusion portion 8 g that protrudes outside the main body 3, a rear end portion 8 h that protrudes rearward at the rear end of the slide portion 8 and is hooked on the main body 3, A projecting portion 8k having an inclined surface 8j against which the projecting portion 8f of the slide portion 8 abuts.

  The holding body 6 is engaged with the slide portion 8 thus configured from the front, and at this time, the protruding portion 6 h of the holding body 6 is inserted into the hole 8 a of the slide portion 8. At the same time, the protrusion 6g of the holding body 6 gets over the protrusion 8b of the slide part 8 and the protrusion 6b and the protrusion 6g engage with the protrusion 8b and the window 8c, so that the protrusion 8b is held on the front side of the slide part 8. The body 6 is engaged so as to be able to rotate synchronously.

  FIG. 15A is a perspective view of the main body 3, and FIG. 15B is a cross-sectional perspective view of the main body 3. The main body 3 is an injection-molded product made of ABS resin and has a bottomed cylindrical shape. On the rear side of the main body 3, there is provided a cutout portion 3a that extends in the axial direction and protrudes outwardly from the protruding portion 8g of the slide portion 8, and the cutout portion 3a is located at four equal positions in the circumferential direction. Is provided.

  A flat portion 3b extending inward from the cutout portion 3a and a protruding portion 3c extending in the axial direction on the rear side of the flat portion 3b are provided inside the cutout portion 3a in the main body 3. The rear side of the protruding portion 3 c extends to the bottom surface 3 d of the main body 3. When the protruding portion 8g of the slide portion 8 is moved forward along the cutout portion 3a of the main body 3, the rear end portion 8h of the slide portion 8 advances along the protruding portion 3c. When the rear end portion 8h reaches the front end of the protruding portion 3c, the slide portion 8 enters the inside of the cutout portion 3a, and the rear end portion 8h is hooked on the front end of the protruding portion 3c. Further, in the state where the rear end 8h of one slide portion 8 (for example, the slide portion 8A in FIG. 4) is hooked on the front end of the protruding portion 3c, another slide portion 8 is placed on the inclined surface 8j of the one slide portion 8. For example, the projecting portions 8f of the slide portions 8B, 8C, and 8D in FIG.

  On the front side of the inner peripheral surface of the main body 3, there are a groove 3e that engages with the protrusion 11q of the middle cylinder 11 in the rotation direction, and an annular recess 3f that the projection 11r of the middle cylinder 11 engages in the axial direction. Is provided. The recessed grooves 3e are formed so as to extend rearward from the front end of the main body 3 by a predetermined length, and are arranged at four circumferential positions on the inner peripheral surface of the main body 3. The annular recess 3f extends in the circumferential direction between the recesses 3e.

  Four slide parts 8 are inserted into the main body 3 from the front side, and the projecting part 8g of the slide part 8 is projected outward from the notch part 3a. Further, the middle cylinder 11 enters the front end of the main body 3. At this time, the protrusion 11 q of the middle cylinder 11 enters the concave groove 3 e of the main body 3, and the middle cylinder 11 enters the annular recess 3 f of the main body 3. By fitting the convex portion 11r, the middle cylinder 11 is engaged with the main body 3 so as to be capable of synchronous rotation.

  As shown in FIGS. 3 and 4, the spring 9 is wound with the outer diameter of the rod-shaped portion 6 c of the holding body 6 and a clearance. One end (front end) of the spring 9 is in contact with the rear wall of the holding body accommodating portion 11 s in the middle cylinder 11, and the other end (rear end) is in contact with the flat surface 8 e located at the front end of the slide portion 8. Has been. The slide portion 8 is urged backward by the spring 9.

  An operation when using the multi-purpose pencil 100 configured as described above will be described below. In the multi-purpose pencil 100 in the initial state shown in FIG. 3, the four slide portions 8 are located at the rear end of the cutout portion 3 a of the main body 3, and the four pipe members 1 are first. It is located inside the cylinder 2. When the slide portion 8A is advanced by a certain amount along the notch portion 3a in this state, as shown in FIG. 4, the holding body 6A, the screw cylinder 4A, and the pipe material 1A engaged with the slide portion 8A in the axial direction. Then, the drawing material M1 moves forward, and the drawing material M1 is exposed forward from the opening 2a of the front tube 2.

  At this time, when the front portion of the pipe material 1A enters the inner peripheral surface 2d of the front tube 2, the holding body 6A is bent so as to be inclined with respect to the axial direction. The protrusion 2e is engaged in the rotation direction. Then, the rear end portion 8 h of the slide portion 8 </ b> A is caught by the front end of the protruding portion 3 c of the main body 3.

  In this state, for example, when the user rotates the main body 3 relative to the front tube 2 in one direction (for example, clockwise), the middle tube 11, the four slide portions 8, the four holding bodies 6 and 4. Each moving body 5 starts to rotate in one direction. Here, the pipe materials 1B to 1D and the screw cylinders 4B to 4D in which the groove 1a is not engaged with the protrusion 2e of the front tube 2 rotate in accordance with the relative rotation in the one direction.

  On the other hand, the holding body 6A connected via the screw cylinder 4A to the pipe material 1A in which the groove 1a is engaged with the protrusion 2e of the leading cylinder 2 is bent along with the relative rotation in the one direction. Both begin to rotate in one direction while being elastically deformed. Further, the pipe material 1A and the screw cylinder 4A in which the groove 1a is engaged with the protrusion 2e of the leading cylinder 2 do not rotate with the rotation of the moving body 5A in one direction, and the pipe material 1A and the screw cylinder 4A do not rotate. On the other hand, the moving body 5A rotates relatively. Therefore, the relative rotation in the one direction causes a screwing action between the male screw 5a of the moving body 5 and the female screw 4a of the screw cylinder 4, so that the moving body 5A moves relative to the pipe material 1A and the screw cylinder 4A. Start moving forward. Then, the bottom surface 5d of the pushing portion 5c in the moving body 5A pushes the drawing material M1 loaded in the pipe material 1A forward, so that both the moving body 5A and the drawing material M1 start moving forward with respect to the pipe material 1A. .

  In the relative rotation in the one direction, as shown in FIG. 9, the protrusion 11 e of the middle cylinder 11 constituting the ratchet mechanism 12 engages with the concavo-convex part 2 f of the front cylinder 2 in the rotation direction, Since the protrusion 11e is urged in the radial direction by the elastic force of the notch 11f, the engagement and disengagement (engagement and disengagement) of the protrusion 11e and the concavo-convex part 2f are repeated. That is, when relative rotation in one direction is performed in a state where the protrusion 11e and the uneven portion 2f are engaged in the rotation direction, the inclined surface 11e1 of the protrusion 11e contacts the inclined surface 2f1 of the uneven portion 2f. In this state, it slides so as to run up the inclined surface 2f1.

  And after the protrusion 11e gets over the convex part of the uneven | corrugated | grooved part 2f, the protrusion 11e and the uneven | corrugated | grooved part 2f are again engaged in a rotation direction. As a result, a click feeling is given to the user each time the protrusion 11e and the concavo-convex part 2f are engaged and released. In the uneven portion 2f, since 24 uneven portions are arranged in the circumferential direction, a click feeling is given to the user whenever the relative rotation is performed by 15 ° in one direction.

  On the other hand, when the user tries to relatively rotate the main body 3 in the other direction (for example, counterclockwise) which is the opposite direction of the one direction with respect to the front tube 2, the side surface of the protrusion 11e constituting the ratchet mechanism 12 11e2 contacts the side surface 2f2 of the uneven portion 2f, and the relative rotation in the other direction is restricted. Therefore, the front tube 2 and the main body 3 do not rotate relative to each other. That is, the rotational force (torque) in the relative rotation in one direction is set to a force that can be easily rotated, and the rotational force in the relative rotation in the other direction is set to a force that cannot be easily rotated. For example, when the outer diameter of the main body 3 is designed to be about 14 mm, the relative rotational torque in one direction is set to 0.1 N · m (Newton meter) or less, and the relative rotational torque in the other direction is 0.2 N · m. It is preferable to set it to m or more.

  Further, as shown in FIG. 4, in the state where the pipe member 1A is advanced by the advance of the slide portion 8A and the drawing material M1 is exposed forward, any one of the slide portions 8B to 8D (hereinafter referred to as other slide portions 8). Is moved forward by a certain amount, the protruding portion 8f of the other slide portion 8 that has been close to the inclined surface 8j of the slide portion 8A comes into contact with the inclined surface 8j. When the protruding portion 8f of the other slide portion 8 comes into contact with the inclined surface 8j of the slide portion 8A, the slide portion 8A is pushed out of the main body 3, and the rear end portion 8h of the slide portion 8A and the front end of the protruding portion 3c The hook is released. Therefore, the slide portion 8A is returned to the rear end position of the cutout portion 3a by the urging force of the spring 9A to the rear.

  As described above, in the multi-purpose pencil 100, the drawing material M is connected to each of the four slide parts 8, and any one slide part 8 </ b> A moves forward by a certain amount relative to the main body 3 to be connected to the slide part 8 </ b> A. The drawn material M1 is exposed from the front tube 2. In this state, the drawing material M1 moves forward by relatively rotating the front tube 2 and the main body 3 in one direction, and is further restricted only by the advancement of the drawing material M1.

  In this manner, the drawing material M may be pushed forward by relative rotation in one direction. Accordingly, since the drawing material M is not required to be retracted while being held, the drawing material M made of a soft material that is difficult to hold can be used for the multi-purpose pencil 100. Further, in the multi-type pencil 100, since the drawing material M does not move backward with respect to the pipe material 1, there is no problem that the drawing material M has to be moved forward in the next use. Therefore, usability can be improved.

  In the multi-purpose pencil 100 of the present embodiment, a ratchet mechanism 12 that allows only relative rotation in one direction between the front tube 2 and the main body 3 is provided. The multi-type pencil 100 includes a middle cylinder 11 positioned on the front side of the main body 3, a projection 11 e that protrudes from the outer surface of the middle cylinder 11 and has elasticity in the radial direction, and a projection 11 e that is provided on the inner surface of the front cylinder 2. The ratchet mechanism 12 is constituted by the concave and convex portions 2f that are rotatably engaged. As described above, the protrusion 11 e protruding from the outer surface of the middle cylinder 11 and the uneven portion 2 f provided on the inner surface of the tip cylinder 2 can be used as the ratchet mechanism 12.

  Further, since the protrusion 11e of the middle cylinder 11 is always in contact with the concavo-convex part 2f of the front cylinder 2, it becomes possible to always generate resistance between the outer surface of the middle cylinder 11 and the inner surface of the front cylinder 2, It becomes possible to suppress rattling between the middle tube 11 and the front tube 2.

  Further, since the male screws 5a formed on the outer periphery of the moving body 5 have a minute pitch, the moving amount of the moving body 5 due to relative rotation in one direction is also minute. Accordingly, the drawing material M pushed forward can be finely adjusted, and the drawing material M pushed out by mistake in a large amount can be prevented from being broken, so that the usability is further improved.

  The front end of the moving body 5 has a cylindrical shape having a flat bottom surface 5d, and the drawing material M advances by the bottom surface 5d pushing the drawing material M from the rear. Therefore, a structure such as a core chuck for gripping the drawing material M is not necessary, and the drawing material M can be pushed out by the bottom surface 5d at the front end of the cylindrical moving body 5.

  The holding body 6 has a non-circular hole 6a corresponding to the cross-sectional shape of the moving body 5. The non-circular moving body 5 is inserted into the non-circular hole 6a. Therefore, the movable body 5 can be engaged in the rotation direction by the holding body 6, and the holding body 6 can function as a detent for the moving body 5.

  The holding body 6 includes an O-ring 7 that applies an elastic force from the outside to the moving body 5 inserted into the hole 6a. Therefore, since the movable body 5 in the hole 6a can be held by the elastic force from the outside by the O-ring 7, the movable body 5 is attached to the holding body 6 by applying the elastic force and the elastic force is appropriately set. By doing so, the moving body 5 can be detached from the holding body 6. Therefore, the movable body 5 (cartridge 10) can be attached to and detached from the holding body 6.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to the said embodiment, It changed within the range which does not change the summary described in each claim, or was applied to another thing. May be. That is, the configuration and shape of each component constituting the multi-purpose pencil 100 can be changed as appropriate without departing from the spirit of the above.

  For example, in the above-described embodiment, the relative rotation between the front tube 2 and the main body 3 in the other direction is restricted by the ratchet mechanism 12, but the shape and arrangement of the protrusions or the uneven portions constituting the ratchet mechanism can be changed as appropriate. . Further, instead of the ratchet mechanism 12, for example, a mechanism using a screwing action of a screw portion, a mechanism using a frictional force, a mechanism using an elastic force, or the like may be employed. Further, a configuration may be employed in which the drawing material M is fed out by relative rotation in one direction, and the relative rotation in the other direction is not fed out by a clutch mechanism (idle) that releases the screwing action. In short, it is only necessary to be restricted by the advance of the drawing material M by the relative rotation of the front tube 2 and the main body 3 in one direction.

  Moreover, in the said embodiment, although the O-ring 7 which clamps the mobile body 5 inside was provided, you may abbreviate | omit the O-ring 7. FIG. For example, instead of the O-ring 7, the moving body 5 may be tightened inward by the elastic force of the resin in the moving body holding portion.

  Moreover, in the said embodiment, although the holding body 6 was provided with the cylindrical moving body holding | maintenance part 6b located in the front side, and the rod-shaped part 6c located in the back side, a moving body holding | maintenance part and a rod-shaped part And may be separated. For example, a fitting structure that fits the movable body holding portion and the rod-like portion so as to be capable of synchronous rotation may be provided.

  Moreover, in the said embodiment, although the pipe material 1 and the screw cylinder 4 were separate bodies, you may make a pipe material and a screw cylinder integral. Furthermore, although the holding body 6 and the slide part 8 are separate bodies, for example, the rod-like part 6c of the holding body 6 and the slide part 8 can be integrated.

  In the above-described embodiment, the multi-type pencil 100 including the drawing materials M1 to M4 having different colors has been described. However, the multi-type pencil including the drawing materials having different thicknesses may be used. Various pencils having different drawing materials may be used. The number of drawing materials is not limited to four, and two, three, or five or more drawing materials may be provided. In short, the present invention can be applied to various pencils provided with a plurality of drawing materials.

DESCRIPTION OF SYMBOLS 1,1A-1D ... Pipe material, 2 ... Lead tube, 2f ... Uneven part, 3 ... Main body, 4, 4A-4D ... Screw cylinder, 4a ... Female screw, 5, 5A-5D ... Moving body, 5a ... Male screw 5d: bottom surface, 6, 6A to 6D ... holding body, 6a ... hole, 7 ... O-ring (elastic part), 8, 8A-8D ... slide part, 11 ... middle cylinder, 11e ... projecting part, 12 ... ratchet Mechanism, 100 ... multiple pencil, M, M1-M4 ... drawing material.

Claims (3)

A tubular body,
A cylindrical tip tube engaged with the main body;
A plurality of slide portions connected to each of a plurality of drawing materials held inside the front tube and provided so as to be slidable with respect to the main body;
A pipe material disposed inside the leading tube and loaded with the drawing material;
A moving body provided on the outer periphery with a male screw extending in the axial direction on the rear side of the drawing material and screwed with a female screw provided on the rear side of the pipe material;
A holding body disposed on the rear side of the female screw and holding the moving body inside,
The holder is
A hole into which the moving body is inserted;
An elastic portion for applying an elastic force from the outside to the movable body inserted into the hole portion,
The pipe member moves forward when an arbitrary one of the plurality of slide portions moves forward by a certain amount with respect to the main body, and in this state, the leading tube and the main body are relatively rotated in one direction. Thereby, the moving body advances together with the drawing material by the screwing action of the male screw and the female screw.
Various pencils. The front end of the movable body has a cylindrical shape with a flat bottom surface, and the bottom surface pushes the drawing material forward to advance the drawing material.
The multi-purpose pencil according to claim 1. The moving body has a non-circular cross section,
The hole has a non-circular shape corresponding to the cross-sectional shape of the moving body,
The multi-purpose pencil according to claim 1 or 2.

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