JP2007252937A - Stick-shaped material dispensing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stick-shape object dispensing device which achieves a stick-shaped material installed on a thin stick move integral with the thin stick and can prevent only the thin stick from moving forward. <P>SOLUTION: The stick-shaped material dispensing device is provided with a thin stick dispensing mechanism with a chuck, a thin stick 46 which is fastened by the chuck of the thin stick dispensing mechanism and is fed by the forward movement of the chuck, and a stick-shaped material 48 installed on the tip of the thin stick 46 and dispenses the stick-shape object 48 by a prescribed amount by the forward movement of the chuck of the thin stick dispensing mechanism. The tip of the thin stick 46 is embedded inside the stick-shaped material 48 and the thin stick 46 is provided with sections 46c, 46d, 46e that adhere on the back end of the stick-shaped material and receive the back end of the stick-shaped material. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a rod-shaped material feeding device for feeding a rod-shaped material such as an eyeliner core, an eyebrow core, a lipstick, a lip gloss, a concealer, an eraser, a correction rod, a writing core, a fluorescent core, and a rod-shaped paste. The present invention relates to a rod-like object feeding device capable of feeding a rod-like object.

2. Description of the Related Art Conventionally, as this kind of rod-shaped object feeding device, one described in Japanese Patent Laid-Open No. 10-226193 is known. In this rod-shaped object feeding device, a thin bar feeding mechanism provided with a chuck, a thin bar which is fastened by the chuck of the thin bar feeding mechanism and sent by a forward movement of the chuck, and attached to the tip of the thin bar. And a rod-shaped object is fed out by a predetermined amount by the forward movement of the chuck of the thin-rod feeding mechanism. By making the thin rod made of plastic, the chuck for tightening the thin rod is not damaged, and even if the outer diameter of the thin rod varies, it can flexibly respond to the elasticity of the thin rod itself. This has the effect that the thin rod can always be securely tightened by the chuck.
JP 10-226193 A

  By the way, in the known rod-shaped material feeding device, the rod-shaped material is attached to the thin rod in a state where the tip of the thin rod is inserted into the rod-shaped material. The rod-shaped object moves integrally. When the rod-shaped material used has sufficient elasticity, the elastic force from the rod-shaped material acts on the thin rod, and the coupling force between the rod-shaped material and the thin rod is sufficiently large. can do. On the other hand, when the elastic force of the rod-shaped object is small, the connecting force between the rod-shaped object and the thin rod becomes insufficient, so that a large resistance force is generated when the rod-shaped object moves due to the frictional force acting on the rod-shaped object from the outside. If it acts, only a thin rod will move, and it will occur that a thin rod moves the inside of a rod-shaped thing. That is, when the thin rod is advanced, there is a problem that the thin rod advances through the rod-like object and only the thin rod moves forward.

  This invention is made | formed in view of this subject, The rod-shaped object attached to the thin rod can move integrally with a thin rod reliably, and it can prevent that only a thin rod advances. It is an object of the present invention to provide a rod-like object feeding device.

In order to achieve the above object, the present invention provides a thin rod feeding mechanism having a chuck, a thin rod that is fastened by a chuck of the thin rod feeding mechanism and that is fed by a forward movement of the chuck, and the thin rod. A rod-shaped object attached to the tip of the rod-shaped object, and a rod-shaped object feeding device that feeds the rod-shaped object by a predetermined amount by a forward movement of the chuck of the thin rod delivery mechanism,
A tip of the thin rod is embedded in the rod-shaped object, and the thin bar has a portion that is in close contact with the rear end of the rod-shaped object and receives the rear end of the rod-shaped object.

  By providing a portion that receives the rear end of the rod-like object in close contact with the rear end of the rod-like object, it is possible to disperse the force from the rod in the radial direction and transmit it to the rod-like object, and concentrate the stress. Can be avoided. Therefore, it is possible to prevent the portion of the rod-shaped object where the stress is concentrated by the thin rod as in the past from being locally broken by the thin rod, and it is possible to prevent the thin rod from moving forward while advancing inside the rod-shaped object. The thin rod and the rod-like object can move together assuredly.

  The portion for receiving the rear end of the rod-like object can be integrated with the main body of the thin rod. Also preferably, the thin bar can be made of plastic.

  As described above, according to the present invention, the thin rod embedded in the rod-shaped object does not move alone within the rod-shaped object, and the thin rod and the rod-shaped object can be moved reliably. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a longitudinal sectional view showing a composite writing instrument using a rod-shaped object feeding device. In this example, a plurality (two) of holding shafts using the thin bar feeding mechanism 44 of the rod-shaped material feeding device 30 of the present invention. 14 and 16, and shows a composite writing instrument capable of selectively advancing the two holding shafts 14 and 16 within the outer cylinder in accordance with the forward / reverse rotation direction of the rear outer cylinder 12 with respect to the front outer cylinder 11. ing. As the forward movement mechanism 10, a mechanism similar to that disclosed in Japanese Patent Laid-Open No. 10-226193 can be adopted. In addition, a utility model registration number No. 2505437, Japanese Utility Model Publication No. 6-32397, Japanese Patent Publication No. Although it is described in detail in JP-A-6-30993, etc., other known advancing mechanisms can be used, and it is possible to provide more than two holding shafts. Further, when the rod-like object feeding device of the present invention is not used for a composite writing instrument and is a single holding shaft, such a forward movement mechanism is unnecessary.

  Accordingly, the advance mechanism 10 of the present example will be briefly described. The front outer cylinder 11 is connected to the rear outer cylinder 12 through the sheath 20 so as to be able to rotate in the forward and reverse directions, be able to knock forward, and be detachable. ing. That is, the rear end portion 11 a of the front outer cylinder 11 and the front end portion 20 a of the sheath 20 are screwed together at the connecting portion, while the rear end portion 20 b of the sheath 20 is the inner step portion of the rear outer cylinder 12. It is locked to the rear surface of 12b.

  Sliders 22 and 24 are slidably fitted in a sheath shaft portion 20 c formed at the center of the sheath 20. The sliders 22 and 24 are urged in the backward direction by the elastic bodies 26 and 28 inserted between the flanges 20d formed in front of the sheath shaft portion 20c of the sheath 20 and the sliders 22 and 24, respectively. Further, by abutting against a stopper step 20e formed on the sheath 20, further retreat is prevented.

  Cam surfaces 22 a and 24 a are formed on the outer peripheral surfaces of the sliders 22 and 24, respectively, and are pressed and engaged with the cam engagement protrusions 12 a formed on the inner surface of the rear outer cylinder 12 by the elastic bodies 26 and 28. It is possible. Further, rear end locking portions 22b and 24b that can be locked to the front ends of the cam engagement protrusions 12a are formed at the rear ends of the cam surfaces 22a and 24a.

  Further, the rear ends of the holding shafts 14 and 16 are detachably coupled to the sliders 22 and 24, respectively. As shown in FIG. 1, when the rear outer cylinder 12 is rotated forward and backward with respect to the front outer cylinder 11 from the state where both the sliders 22 and 24 are retracted, the rear part is changed according to the rotation direction. The cam engaging protrusion 12a of the outer cylinder 12 pushes out one of the cam surfaces 22a, 24a of the sliders 22, 24, and either one of the sliders 22, 24 resists the urging force of the elastic bodies 26, 28. Then move forward. When either one of the rear end locking portions 22b and 24b of the cam surfaces 22a and 24a is engaged with the cam engagement protrusion 12a, the advanced slider 22 or 24 is held at the advanced position. Thus, either the holding shaft 14 or 16 coupled to the slider 22 or 24 moves forward and protrudes from the front end of the front outer cylinder 11. In this state, when the rear outer cylinder 12 is knocked and moved forward with respect to the front outer cylinder 11, the rod-like object is fed out by the operation of the thin rod feeding mechanism 44 described below. Further, when the rear outer cylinder 12 is rotated in the opposite direction from the held state, the engagement between one of the rear end locking portions 22b and 24b and the cam engagement protrusion 12a is released, and the slider 22 or 24 retreats by the urging force of the elastic body 26 or 28, and returns to the state shown in FIG.

  The rod-like object 48 held by the holding shaft 14 and the holding shaft 16 and fed out by the same thin rod feeding mechanism 44 includes an eraser, a correction rod, a writing core, a fluorescent core, an eyeliner core, an eyebrow core, a lipstick, a lip. Gloss, concealer, stick-like paste, etc. can be used, and particularly those having low elasticity, high brittleness and / or high hardness are suitable for the present invention. The combination of the rod-shaped objects held by the plurality of holding shafts 14 and 16 can be any combination of different outer diameters, different colors, or different types. For example, in the case of cosmetics as a rod-shaped article, a combination of eye liners of different outer diameters or different colors, lipstick, lip gloss or concealer, or combinations of different types of eyeliner core and lipstick, eyeliner core and eyebrow core, etc. can do. In addition, any of the holding shafts may hold, for example, a thing other than a rod-like material such as ink or cosmetic liquid, or may not be provided with a thin stick feeding mechanism. Alternatively, any one of the holding shafts may be directly fed by a chuck without using a thin bar, such as a mechanical pencil lead.

  A rod-like object feeding device 30 according to the present invention used for the holding shaft 14 or 16 will be described with reference to FIG. The rod-like material feeding device 30 includes a thin rod case 32 fitted into the slider 24, a thin rod feeding mechanism 44 connected to the front end portion of the thin rod case 32, a thin rod 46, and an eyeliner core 48 which is a rod-like material. I have.

  The thin rod delivery mechanism 44 includes a guide 33 connected to the front end portion of the thin rod case 32, a chuck 34 fixed to the guide 33 for tightening the thin rod 46, and a chuck ring fitted to the outside of the chuck 34. 36, a sleeve 38 that contacts the rear end of the chuck ring 36, and a spring (elastic body) 40 that is inserted between the front end portion of the sleeve 38 and the guide 33 in the sleeve 38 and biases the chuck 34 rearward. A tip tool 42 which is connected to the sleeve 38 and accommodates the chuck 34 and the chuck ring 36 therein, and a packing 43 which holds the thin rod 46 in the tip tool 42.

  The tip of the thin rod 46 delivered by the forward movement of the chuck 34 of the thin rod delivery mechanism 44 is embedded in an eyeliner core 48 that is a rod-like object. A guide tube portion 50 that protects and guides the eyeliner core 48 is attached to the tip of the tip 42 of the thin rod delivery mechanism 44. The thin bar 46 is a plastic bar and has flexibility and elasticity in a direction perpendicular to the axial direction (that is, radial direction), and further, as shown in FIG. In addition, the tip of the thin rod 46 embedded in the eyeliner core 48 is a diameter-expanded portion 46a that is expanded in the radial direction as compared with other portions. That is, the surface of the enlarged diameter portion 46a is a convex surface protruding in the radial direction. Such a thin rod 46 and the eyeliner core 48 which is a rod-shaped object can be integrally molded by insert molding.

  Further, the portion of the thin rod 46 protruding from the rear portion of the eyeliner core 48 passes through the front and rear of the thin rod delivery mechanism 44.

  When the rear outer cylinder 12 is knocked forward with respect to the front outer cylinder 11 with the holding shaft 16 advanced by the advance mechanism 10, as shown in FIG. The operation is transmitted to the guide 33 and the chuck 34 of the thin rod feed mechanism 44 through the thin rod case 32. On the other hand, since the front end of the guide tube portion 50 is in contact with the inner peripheral surface of the front end of the front outer tube 11, the guide tube portion 50 and the tip tool 42 are prevented from advancing knocking operation. The ring 36 advances relatively in the tip 42, and the chuck 34 further moves forward than the chuck ring 36 to release the thin rod 46. When the knocking operation is released, the chuck 34 returns to the original position. The thin rod 46 can be fed out by a predetermined amount by such a series of forward movements of the chuck 34. As a result, the eyeliner core 48 attached to the thin rod 46 moves forward integrally, projects forward from the front outer cylinder 11 and is used. Further, when the eyeliner core 48 is pushed into the front outer cylinder 11 in the forward knocked state, the thin rod 46 is released from the chuck 34, so that the eyeliner core 48 moves backward together with the thin rod 46 and the guide cylinder 50. Stored inside.

  In the advancement and retraction of the eyeliner core 48 described above, the eyeliner core 48 and the thin rod 46 must move together. That is, when the thin rod 46 is drawn out, frictional force or the like from the inner peripheral surface of the guide tube portion 50 acts on the outer peripheral surface of the eyeliner core 48, and these are against the advance of the eyeliner core 48. There is a possibility that only the thin rod 46 may move forward due to resistance. However, since the distal end of the thin rod 46 is the enlarged diameter portion 46a, the forward feeding force from the thin rod 46 is distributed and transmitted to the eyeliner core 48 via the enlarged diameter portion 46a. Thus, the force from the thin rod 46 is locally applied to the eyeliner core 48 to prevent the portion from being broken, and the thin rod 46 and the eyeliner core 48 move integrally.

  FIG. 3B shows the thin rod 46-1 and the eyeliner core 48 which is a rod-like object. In this example, the thread 46b is formed on the side peripheral surface of the thin bar 46-1, and thereby, a convex surface protruding in the radial direction and a concave concave surface are formed alternately and continuously. Yes. Such a thin rod 46-1 and an eyeliner core 48 which is a rod-shaped object are formed by insert molding or by screwing the thin rod 46-1 into the eyeliner core 48 which is a rod-shaped object. be able to. Even in such an example, the same effect as in FIG. In the example of FIG. 3B, the screw thread 46b is formed over the entire length of the thin rod 46-1, but is embedded in the eyeliner core 48 which is a rod-like object (that is, screwed). Of course, the thread 46b may be formed only in the portion.

  In addition to the thread, any irregular shape such as a saw shape or a corrugated shape may be used. Further, the concavo-convex shape may be formed continuously as shown in FIG. 3B, or a plurality of concave or convex portions may be formed discretely, or simply as shown in FIG. Only one convex portion or concave portion may be formed.

  3 (c) to 3 (h) show examples of the present invention of thin bars. In the example of FIG. 3 (c), a receiving tray 46c integrated with the main body of the thin rod 46-2 is formed on a thin rod 46-2 having an enlarged diameter portion 46a similar to FIG. 3 (a). The tray 46c having a radially projecting surface is in close contact with the rear end surface of the rod-like object 48 to receive the rod-like object 48. 3 (d) is similar to FIG. 3 (b) in that a thin rod 46-3 having a thread 46b formed on the outer surface thereof is integrated with a main body of the thin rod 46-3. 46 c is formed, and the tray 46 c is in close contact with the rear end surface of the rod-shaped object 48 to receive the rod-shaped object 48. In the example of FIG. 3 (e), a receiving tray 46d that is integrated with the main body of the thin rod 46-4 is formed on a thin rod 46-4 having an enlarged diameter portion 46a similar to FIG. 3 (a). The tray 46d is in close contact with the rear end surface and rear side surface of the rod-shaped object 48 to receive the rod-shaped object 48. 3 (f) is similar to FIG. 3 (b) in that a thin bar 46-5 having a thread 46b formed on the outer surface thereof is integrated with a main body of the thin bar 46-5. 46 d is formed, and the tray 46 d is in close contact with the rear end surface and the rear side surface of the rod-shaped object 48 to receive the rod-shaped object 48. Moreover, the example of FIG.3 (g) has the receiving pan 46e which became a main body of this thin rod 46-6 in the thin rod 46-6 which has the enlarged diameter part 46a similar to Fig.3 (a), The tray 46e is connected to the rear end surface and the rear side surface of the rod-shaped object 48 to receive the rod-shaped object 48. Further, in the example of FIG. 3 (h), a thin rod 46-7 having a thread 46b formed on the outer surface is separated from the main body of the thin rod 46-7, as in FIG. 3 (b). A receiving tray 46e is connected, and the receiving tray 46e is in close contact with the rear end surface and rear side surface of the rod-shaped object 48 to receive the rod-shaped object 48. According to the examples of FIGS. 3C to 3H described above, the forward feeding force from the thin rod 46-2 is transmitted to the rod-shaped object 48 through the trays 46c, 46d, and 46e, and reliably and The rod 48 is stably advanced together with the thin rods 46-2 to 46-7. In these examples, the enlarged-diameter portion 46a or the thread 46b and the trays 46c, 46d, 46e are combined. However, the present invention is not limited to this, and only the trays 46c, 46d, 46e may be provided.

  The thin rod 46 (46-1 to 46-7) is made of plastic in the present embodiment, but is not limited to this, and can be made of metal or other materials, but is made of plastic. Thus, it is possible to easily form an arbitrary convex surface or concave surface protruding or recessed in the radial direction.

It is a longitudinal cross-sectional view which shows the composite writing instrument which uses a rod-shaped object drawing | feeding-out apparatus. It is principal part sectional drawing which shows a rod-shaped object drawing | feeding-out apparatus, and is the figure which one holding shaft advanced from FIG. 1 and rotated the longitudinal cross-sectional view of FIG. 1 90 degree | times. (A) is a partial cross-sectional view showing a thin rod and a rod-like object, (b) is a partial cross-sectional view showing a thin rod and a rod-like object according to another example, and (c) to (h) are examples of the present invention of a thin rod and a rod-like object. It is a fragmentary sectional view showing.

Explanation of symbols

30 Bar-shaped object feeding device 34 Chuck 44 Thin bar feed mechanism 46 (46-1 to 46-7) Thin bar 48 Eyeliner core (bar-shaped object)

Claims (3)

A thin rod feeding mechanism having a chuck; a thin rod which is clamped by the chuck of the thin rod feeding mechanism and fed by the forward movement of the chuck; and a rod-like object attached to the tip of the thin rod. In the rod-like object feeding device for feeding the rod-like object by a predetermined amount by the forward movement of the chuck of the thin rod feeding mechanism,
The rod-like material feeding device is characterized in that a tip of the thin rod is embedded in the rod-shaped material, and the thin rod has a portion that receives the rear end of the rod-shaped material in close contact with the rear end of the rod-shaped material.   The portion for receiving the rear end of the rod-shaped object is integral with the main body of the thin rod, and the rod-shaped object feeding container according to claim 1.   3. The bar-shaped material feeding container according to claim 1, wherein the thin bar is made of plastic.

Images