JP2008259669A - Delivery device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a delivery device having a gap between the front end side of a front end of a slider and a receiving hole of a cylinder, which prevents breakage, fracture, and pull-out from a slider of a stick-like material. <P>SOLUTION: This delivery device 1 includes: a pair of cylinders 6, 8; and a slider 10 moved in the cylinders 6, 8 by the relative rotation of the cylinders 6, 8 for deliver the stick-like material 4 from the cylinder 6. The stick-like member 4 fixed to the front end 10a of the slider 10 includes: an annular outer part 4b extending over a first outer surface 42 of the front end 10a of the slider 10, a stepped part 42b and a second outer surface 42c through a gap 44 between the front end side of the front end 10a of the slider and a receiving hole 14 of the cylinder 6; and a central part 4c extending from the front end side of the slider 10 into a central hole 26. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a feeding device for feeding a rod-like object such as lipstick or solid glue from a pair of cylinders by relatively rotating the pair of cylinders around an axis.

  DESCRIPTION OF RELATED ART Conventionally, the feeding apparatus for paying out stick-shaped objects, such as a lipstick, solid glue, a crayon, a solid correction agent, from a pair of cylinders is known (for example, refer patent documents 1-3). These devices generally have a rod-like shape in which when a pair of cylinders are rotated relative to each other about an axis, a slider disposed in the pair of cylinders moves in the axial direction and is fixed to the tip of the slider. The object has a structure that is fed out from one of the cylinders. Moreover, if a pair of cylinder is relatively rotated in the opposite direction, the rod-shaped object is configured to be drawn into the cylinder.

  In order to fix the rod-like object to the tip of the slider of the feeding device, generally, the slider is arranged at the most retracted position in the pair of cylinders, and in this state, a pair of rod-like material having fluidity is placed. The cylinder is filled, and the filled rod-shaped material is solidified.

  With reference to FIG.11 and FIG.12, the fixed form of the front-end | tip part of the slider of a conventional feeding apparatus and a rod-shaped object is demonstrated. FIG. 11 is a perspective view showing an example of a slider of a conventional feeding device. FIG. 12 is a perspective view showing another example of a slider of a conventional feeding device.

  The slider 72 of the feeding device 70 shown in FIG. 11 is disposed in a cylindrical body 74. The cylindrical portion 72a, a thin shaft portion 72b extending from the cylindrical portion 72a, and a blade portion 72c attached to the shaft portion 72b. And have. The blade portion 72c has an edge portion 72d that narrows outward in the radial direction. Further, the outer diameter of the cylindrical portion 72 a is smaller than the inner diameter of the cylindrical body 74. In this case, the rod-like object 76 is mainly fixed so as to cover the periphery of the shaft portion 72b and the blade portion 72c.

  A slider 82 of another feeding device 80 shown in FIG. 12 has a cylindrical portion 82 a that fits into the cylinder 84. The cylindrical portion 82a has a center hole 82b extending in the longitudinal direction, an outer surface 82c, and a plurality of communication holes 82d communicating the center hole 82b and the outer surface 82c. The center hole 82b does not penetrate and is closed at the wall 82e. In this case, the material of the rod-shaped object 88 flows from the center hole 82b, is blocked by the wall 82e, and then flows into the communication hole 82d. Thus, the rod-shaped object 88 is fixed in a state of being filled in the center hole 82b and the communication hole 82d (see Patent Document 1).

Japanese Patent No. 3795632 (see FIGS. 1 and 4) JP 2002-199930 A Japanese Utility Model Publication No. 6-74382 (see FIG. 1)

  In the case of the slider 70 shown in FIG. 11, stress is likely to occur in the portion of the rod-like object 76 located at the edge 72d of the blade portion 72c. For example, while the rod-like object 76 is being fed or retracted, The object 76 may break or break at that portion. Further, if the rod-like object 76 is retracted, if there is resistance, the rod-like object 76 may be pulled out of the slider 72 in some cases.

  On the other hand, in the case of the slider 80 shown in FIG. 12, the rod-shaped object 88 was not broken, broken or pulled out.

  The inventor of the present application prevents the rod-like object 76 from being broken, broken, or pulled out in the feeding device 70 shown in FIG. 11 in which the outer diameter of the cylindrical portion 72a is smaller than the inner diameter of the cylindrical body 74. In addition, an attempt was made to improve the slider 72 like the slider 82 shown in FIG. FIG. 13 is a perspective view of a prototype slider. In the prototype slider 90, the shaft portion 72b and the wing portion 72c of the slider 72 shown in FIG. 11 are omitted, a cylindrical portion 72a has a central hole 90a extending in the longitudinal direction, and an outer surface of the central hole 90a and the cylindrical portion 72a. Are formed with a plurality of communication holes 90b. Similar to the slider 72 shown in FIG. 11, a gap is formed between the tip 90 c of the slider 90 and the cylindrical body 74. In this case, the material of the rod-shaped object 92 flows along the outer surface of the cylindrical portion 72a from the tip 90c of the slider 90, and also flows from the center hole 90a, is blocked by the wall 90d, and then flows into the communication hole 90b. Therefore, the rod-like object 92 is fixed in a state of covering the outer surface of the cylindrical portion 72a and filling the hole 90a and the communication hole 90b.

  In the slider 90 shown in FIG. 13, contrary to expectations, when the rod-like object 92 is retracted, the rod-like object 92 may be pulled out of the slider 90.

  Therefore, the present invention prevents a rod-like object from being broken, broken or pulled out from the slider in a feeding device having a gap between the tip side of the tip of the slider and the receiving hole of the cylinder. The purpose is that.

  When the slider 90 shown in FIG. 13 is used, when the material of the rod-like object 92 flows from the tip 90a of the slider 90 along the outer surface of the cylindrical portion 72a and flows into the center hole 90a and the communication hole 90b, the material is formed in the communication hole 90b. It was found that the air was trapped, which weakened the bond between the rod and the slider.

  Therefore, in order to achieve the above object, the feeding device according to the present invention includes a pair of cylinders that can rotate relative to each other about the axis, and a pair of cylinders that move in the axial direction by the relative rotation of the pair of cylinders. And a rod-like object fixed to the slider and fed forward in the axial direction from the pair of cylinders by the movement of the slider, the slider has a tip portion to which the rod-like object is fixed, One end of the cylinder has a receiving hole for receiving the tip of the slider, and in the feeding device in which a gap is provided between the tip of the tip of the slider and the receiving hole of the one cylinder, the tip of the slider is A contour that is arranged behind the first outer surface portion and that is smaller than the first outer surface portion so as to form an annular step between the first outer surface portion on the distal end side and the first outer surface portion. A second outer surface portion having A rod-like object having a central hole extending in the axial direction and fixed to the tip end of the slider passes through the gap from the tip end side of the slider and extends above the first outer surface, the stepped portion, and the second outer surface. It has an outer portion and a central portion extending into the central hole from the tip side of the slider.

  In the feeding device according to the present invention configured as described above, since the rod-shaped object extends from the slider through the gap onto the first outer surface, the stepped portion, and the second outer surface, the contact area between the rod-shaped material and the slider In particular, the stepped portion can prevent the rod-shaped object from coming out of the slider when the rod-shaped object is retracted. Further, since the rod-like object is fixed so as to sandwich the slider between the annular outer portion and the center portion extending into the center hole, the rod-like object is not easily broken. Thus, it is possible to prevent the rod-like object from being broken, broken or pulled out from the slider in the feeding device having a gap between the tip side of the tip of the slider and the receiving hole of the cylinder.

  In the embodiment of the feeding device according to the present invention, preferably, the receiving hole of one cylindrical body is cylindrical, the central hole of the tip of the slider is cylindrical, and the inner diameter of the central hole of the slider is one side. It is 1/2 or more of the internal diameter of the receiving hole of this cylindrical body.

  In the embodiment of the feeding device according to the present invention, preferably, the cross-sectional area of the central hole at the tip of the slider is ¼ or more of the cross-sectional area of the receiving hole of one cylinder.

  In the embodiment of the feeding device according to the present invention, preferably, the guide rail for guiding the slider is configured as a portion protruding inward of the receiving hole of one cylindrical body, and the tip of the slider is further The guide surface protrudes outward from the first outer surface and is guided by the guide rail.

  In order to achieve the above object, the night feeding device according to the present invention includes a pair of cylinders that can be rotated relative to each other about the axis, and a pair of cylinders that are rotated relative to each other in the axial direction. A slider that moves, and a rod-shaped object that is fixed to the slider and that is fed forward in the axial direction from the pair of cylinders by the movement of the slider. The slider has a tip portion to which the rod-shaped object is fixed, One of the cylinders has a receiving hole for receiving the tip of the slider, and in the feeding device in which a gap is provided between the tip of the tip of the slider and the receiving hole of the one cylinder, the tip of the slider is The rod-like object having an outer surface having a constant contour in the axial direction, an annular recess provided in the outer surface, and a central hole extending in the axial direction and fixed to the slider tip end has a gap from the tip end side of the slider. Go through An upper and outer portion of the annular extending into the recess of the is characterized by having a central portion extending into the central bore from the distal end of the slider.

  In the feeding device according to the present invention configured as described above, since the rod-shaped object extends from the slider through the gap on the outer surface and into the recess, a contact area between the rod-shaped object and the slider can be ensured. In particular, the recess can prevent the rod-like object from coming out of the slider when the rod-like material is retracted. Further, since the rod-like object is fixed so as to sandwich the slider between the annular outer portion and the center portion extending into the center hole, the rod-like object is not easily broken. Thus, it is possible to prevent the rod-like object from being broken, broken or pulled out from the slider in the feeding device having a gap between the tip side of the tip of the slider and the receiving hole of the cylinder.

  As described above, according to the feeding device according to the present invention in which there is a gap between the tip of the slider and the cylinder, it is possible to prevent the rod-like object from being broken, broken, or pulled out from the slider. .

  Hereinafter, an embodiment of a feeding device according to the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of a feeding device according to the present invention. FIG. 2 is an exploded perspective view of the feeding device according to the present invention in which a bar-like object is omitted. FIG. 3 is an enlarged cross-sectional view of the cylinder body taken along line 3-3 in FIG. 4 is a cross-sectional view taken along line 4-4 in FIG. 1, and FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. FIG. 6 is an enlarged cross-sectional view taken along line 6-6 in FIG. 7 is a cross-sectional view taken along line 7-7 in FIG. Hereinafter, the bar-like material fed out by the feeding device will be described as a solid paste.

  As shown in FIG. 1, a feeding device 1 according to an embodiment of the present invention has an elongated shape having an axis 2, and on one side A <b> 1 in the axial direction A, a solid paste that is a rod-like object 4 is fed out. It is a device. Hereinafter, the side on which the solid paste is fed is referred to as the front side or the tip side A1, and the opposite side is referred to as the back side or the tail side A2. In the diameter direction R perpendicular to the axial direction A, the side toward the axis 2 is referred to as an inner side R1, and the side away from the axis 2 is referred to as an outer side R2.

  As shown in FIG. 2, the feeding device 1 includes an elongated cylindrical body 6, a cylindrical tail plug 8 that is attached coaxially to the cylindrical body 6 on the rear side of the cylindrical body 6, and the cylindrical body 6 and the tail plug 8. And a cap 12 attached to the front side of the tube body 6. The cylinder body 6, the tail plug 8, and the cap 12 are preferably made of a polyolefin resin such as polypropylene. The slider 10 is preferably made of an engineering plastic such as polyacetal. The solid paste 4 is fixed to the tip portion 10 a of the slider 10.

  As shown in FIGS. 2 and 3, the cylinder body 6 has a receiving hole 14 penetrating in the axial direction A from the front end surface 6 c to the rear end surface 6 d, and the receiving hole 14 can receive the slider 10. The cylinder body 6 has a front part 6a and a rear part 6b. The cross section of the receiving hole 14 in the front portion 6a has a form in which a part of a circle having a diameter D1 protrudes inward, and the cross section of the receiving hole in the rear portion 6b is a circular shape having a diameter D1. The inwardly protruding portion has a substantially rectangular cross section and extends in the longitudinal direction A, and constitutes a guide rail 16 for guiding the slider 10 described later. Two guide rails 16 are provided so as to face each other in the diametrical direction, and the inner surfaces 16a of the two guide rails 16 are located on the circumference of the diameter D2.

  As shown in FIGS. 2, 4 and 5, the tail plug 8 has an outer diameter smaller than the diameter D1 and a front portion 8a located in the cylinder body 6, an outer diameter of the diameter D1, and An intermediate part 8b fitted to the rear part 6b of the cylinder body 6, a rear part 8c having an outer diameter larger than the diameter D1 and exposed to the rear side of the cylinder body 6, and an axis line from the front end 8d to the rear end 8e It has a hole 18 extending in the direction A. The hole 18 extends to the rear portion 8 c and is closed at the rear end 8 e of the tail plug 8.

  An intermediate portion 8 b of the tail plug 8 fitted to the rear portion 6 b of the cylinder body 6 is slidable so that the tail plug 8 can rotate around the axis 2 with respect to the cylinder body 6. Thus, the cylinder body 6 and the tail plug 8 constitute a pair of cylinders 20 that can rotate relative to each other about the axis 2. In order to prevent the cylinder body 6 and the tail plug 8 from being easily separated after the cylinder body 6 and the tail plug 8 are assembled, the rear portion 6b of the cylinder body 6 and the intermediate portion 8b of the tail plug 8 are respectively annular annular portions 22a that engage with each other. And an annular recess 22b. In order to adjust the force required to rotate the cylinder body 6 and the tail plug 8 relative to each other, it is preferable to dispose the O-ring 24 b in the annular groove 24 a provided in the intermediate portion 8 b of the tail plug 8. In order to prevent the solid paste 4 containing moisture from drying in the container constituted by the pair of cylinders 20 and the cap 12, it is further recommended to arrange the O-ring 24b.

  The slider 10 includes a front end portion 10a to which the solid paste 4 is fixed, an intermediate portion 10b guided by the guide rail 16, a rear portion 10c extending into the tail plug 8, and a center hole 26 penetrating the slider 10 in the axial direction A. And have.

  As shown in FIG. 6, the intermediate portion 10 b of the slider 10 has a facing surface 28 a diametrically opposed to the guide rail 16, and extends outward from the facing surface 28 a and faces the guide rail 16 on both sides of the guide rail 16. It has a pair of guide surfaces 28b and 28c. As described above, since the guide rail 16 is provided so as to face the diameter direction R, the facing surface 28a and the pair of guide surfaces 28b, 28c are also provided on both sides in the diameter direction R. The facing surface 28a is located on a circumference having a diameter D3 smaller than the diameter D2, and the pair of guide surfaces 28b and 28c extend from the facing surface 28a to between a circle having a diameter D1 and a circle having a diameter D2. . The pair of guide surfaces 28 b and 28 c are slidable with respect to the guide rail 16 and are guided by the guide rail 16. Thus, the slider 10 can move linearly in the axial direction A along the guide rail 16 in the pair of cylinders 20, that is, the cylinder body 6 and the tail plug 8.

  As shown in FIGS. 4 to 6, when the slider 10 is inserted into the cylinder body 6 from the rear, the front portion of the slider 10 is guided so that the guide rail 16 is guided between the pair of guide surfaces 28 b and 28 c. 10a preferably has a pair of guide surfaces 30 connected to and extending forward from the pair of guide surfaces 28b, 28c. The distance 30a in the circumferential direction of the pair of guide surfaces 30 increases as the pair of guide surfaces 30 extends forward from the guide surfaces 28b and 28c, that is, decreases toward the pair of guide surfaces. Further, it is preferable that the guide surface 30 extending from the guide surfaces 28 b and 28 c facing the one guide rail 16 and the guide surface 30 extending from the guide surfaces 28 b and 28 c facing the other guide rail 16 are connected.

  The rear portion 10 c of the slider 10 extends in the axial direction A into the hole 18 of the tail plug 8. Further, the rear portion 10c of the slider 10 has an outer diameter smaller than the diameter D2 so that the slider 10 does not hit the guide rail 16 when the slider 10 moves in the axial direction A along the guide rail 16. Further, the rear portion 10c of the slider 10 has a spiral groove 32 that is continuous over the entirety thereof.

  The front portion 8 a of the tail plug 8 has a protrusion 34 that fits into the spiral groove 32 of the rear portion 10 c of the slider 10. Thus, the slider 10 can be moved forward or backward in the axial direction A in the tube body 6 and the tail plug 8 by relatively rotating the pair of tube bodies 20, that is, the tube body 6 and the tail plug 8. Thus, the solid paste 4 can be fed out or retracted from the cylinder body 6. The front portion 8a of the tail plug 8 includes two halves 38a and 38b divided by two slits 36 extending in the axial direction A (see FIG. 2). The two halves 38a, 38b can be deflected relative to the middle portion 8b of the tail plug 8 so as to be separated from each other, thereby causing the slider 10 to move into the hole 18 of the tail plug 8 against the protrusion 34. The slider 10 can be assembled to the tail plug 8 by simply pushing it in.

  Further, the solid paste 4 is fixed to the front end portion 10a of the slider 10 (see FIG. 2). Thus, the slider 10 can be extended from the cylinder body 6 or retracted into the cylinder body 6 by the advance and retreat of the slider 10 in the axial direction A. The length A in the axial direction of the cylinder body 6 and the rear portion 10c of the slider 10 is determined according to the movement distance of the solid paste 4 and the slider 10 in the axial direction A.

  The front end portion 10a of the slider 10 has a first stepped portion 42b formed between the front end surface 40, the first outer surface portion 42a on the front end side, and the first outer surface portion 42a. Arranged behind the second outer surface portion 42c so as to form an annular second step portion 42d between the second outer surface portion 42c disposed behind the outer surface portion 42a and the second outer surface portion 42c. A third outer surface portion 42e, and the second outer surface portion 42c has a smaller contour than the first outer surface portion 42a. The third outer surface portion 42e preferably has the same contour as the first outer surface portion 42a, and both may be referred to as the outer surface 43. The first to third outer surface portions 42a, 42c, and 42e are preferably cylindrical. In the present embodiment, the first outer surface portion 42a and the third outer surface portion 42e are located on the same circumference as the circle where the facing surface 28a of the intermediate portion 10b of the slider 10 is located, and thus are constant in the axial direction. It has a contour and an outer diameter D3. Thus, an annular gap 44 (see FIG. 4) is formed between the first outer surface 42a and the receiving hole 14 of the cylinder body 6. Further, the second outer surface portion 42c forms an annular recess 46 with respect to the first outer surface portion 42a and the third outer surface portion 42e. Furthermore, the tip portion 10a of the slider has an inner surface 48 constituted by the center hole 26 extending in the axial direction A from the tip surface 40 (see FIG. 5). The inner surface 48 is preferably cylindrical.

  As shown in FIG. 7, the solid paste 4 is fixed to the tip portion 10 a of the slider 10 and extends forward therefrom. Specifically, the solid paste 4 passes through the gap 44 from the front end side of the solid paste main body 4a and the slider 10, and the first outer surface 42a, the first step portion 42b, the second outer surface 42c, and the second step portion. 42d and the 3rd outer surface 42e, and the center part 4c extended in the center hole 26 from the front end side of the slider 10 is provided. The outer portion 4 b of the solid paste 4 extends from the tip side of the slider 10 through the gap 44 and onto the first outer surface 42 a and the third outer surface 42 e and into the recess 46.

  In order to secure the contact area between the solid paste 4 and the slider 10, the first to third outer surfaces 42a, 42c, and 42e are preferably larger, but the outer portion 4b of the solid paste 4 is broken by the solid paste 4. Thickness not to be necessary is necessary. The thickness is preferably 1 mm or more. Further, in order to ensure the strength of the solid paste 4, the inner diameter D4 of the center hole 26 of the tip portion 10a of the slider 10 is ½ or more of the inner diameter D1 of the receiving hole 14 of the rear portion 6b of the cylindrical body 6, Or it is preferable that the cross-sectional area of the center hole 26 of the front-end | tip part 10a of the slider 10 is 1/4 or more of the cross-sectional area of the receiving hole 14 of the rear part 6b of the cylinder main body 6. FIG.

  As shown in FIG. 1, the cap 12 is detachably attached to the front portion 6 a of the cylinder body 6. The cap 12 is provided with an inner cap 50 that comes into contact with the front end surface 6c of the cylinder body 6 when the cap 12 is attached to the cylinder body 6a. The inner cap 50 is a hemisphere for forming the tip of the solid paste 4. A concave portion 52 is formed.

  Next, a method for fixing the solid paste of the feeding device according to the present invention to the slider will be described with reference to FIGS. 8 and 9 are views in the same cross section as FIG. 7 showing the method of filling the rod-shaped object.

  As shown in FIG. 8, the cylinder body 6 fitted with the cap 12 is arranged in the vertical direction so that the cap 12 faces downward without attaching the tail plug 8 and the slider 10. Next, a predetermined amount of glue material 4 ′ that has been heated and made flowable is injected from the rear side of the cylinder body 6. Since the inner cap 50 is in contact with the front end surface 6 c of the cylinder body 6, the glue material 4 ′ is filled in the hemispherical recess 52 of the inner cap 50 and the front part 6 a of the cylinder body 6.

  Next, as shown in FIG. 9, the assembled slider 10 and tail plug 8 are inserted into the cylinder body 6 into which the paste material 4 'has been injected. When inserting the slider 10 and the tail plug 8, the guide rail 16 of the cylinder body 6 contacts the guide surface 30 of the slider 10 and then guides between the pair of guide surfaces 28 b and 28 c along the guide surface 30. Thus, a slight relative rotation occurs between the cap 12 and the cylinder main body 6 and the slider 10 and the tail plug 8. When the slider 10 and the tail plug 8 are completely inserted, the paste material 4 ′ is filled between the inner surface of the receiving hole 14 of the cylinder body 6 and the tip portion 10 a of the slider 10, and the paste material 4 ′ is The first outer surface 42 a, the first step portion 42 b, the second outer surface 42 c, the second step portion 42 d, and the third outer surface 42 e extend above and are dammed by the guide surface 30. Since the air between the cylinder body 6 and the slider 10 escapes backward from between the pair of guide surfaces 28b and 28c, the glue material 4 'smoothly passes through the first outer surface 42a and the first step portion 42b of the slider 10. , Flows onto the second outer surface 42c, the second stepped portion 42d, and the third outer surface 42e. Thus, a sufficient contact area between the solid paste 4 and the front portion 10a of the slider 10 is secured to prevent the solid paste 4 from falling out of the slider 10 when the solid paste 4 is retracted. Furthermore, since the first step portion 42b and the second outer surface 42c, that is, the recess 46 are provided, the coupling force between the solid paste 4 and the slider 10 is increased. Further, the remaining glue material 4 ′ is filled in the center hole 26 of the slider 10 (see FIG. 7). The air in the center hole 26 escapes backward.

  Next, the paste material 4 ′ is allowed to stand and is cooled to form solid paste 4. The solid paste 4 between the cylinder body 6 and the slider 10 constitutes an annular outer portion 6b. When the solid paste 4 is formed, the paste material 4 ′ slightly contracts, so that the solid paste 4 around the first to third outer surfaces 42 a, 42 c, 42 e of the slider 10 has the tip 10 a of the slider 10 inward. It is fixed to tighten. As a result, the bonding force between the slider 10 and the solid paste 4 is further increased, and the solid paste 4 becomes difficult to come off the slider 10.

  Next, the operation of the feeding device according to the present invention will be described.

  The cap 12 is removed from the cylinder body 6. When the tail plug 8 is rotated about the axis 2 with respect to the cylinder body 6 by holding the tube body 6, the protrusion 34 of the front portion 8 a of the tail plug 8 is applied to the spiral groove 32 of the rear portion 10 c of the slider 10. The rotational force is converted into an axial driving force by sliding between the guide surfaces 28b, 28c of the slider and the guide rail 16 of the cylinder body 6. Thereby, the slider 10 moves forward and the solid paste 4 is fed out from the cylinder body. Further, when the tail plug 8 is rotated in the opposite direction with respect to the cylinder body 6, the slider 10 is retracted, and the solid paste 4 is drawn into the cylinder body 6.

  In the conventional feeding device shown in FIG. 11, the solid glue 76 may come off from the slider 72 or the solid glue 76 may break due to the resistance when the solid glue 76 is pulled. On the other hand, in the feeding device according to the present invention, the outer portion 4b of the solid paste 4 is placed on the first to third outer surfaces 42a, 42c, 42e and the first and second step portions 42b, 42d of the slider 10. The contact area and the bonding force between the solid paste 4 and the front portion 10a of the slider 10 are sufficient to prevent the solid paste 4 from coming out of the slider 10 because it extends and contracts so as to be tightened inward. Secured.

  Further, the central portion 4c of the solid paste 4 filled in the center hole 26 of the slider 10 sandwiches the slider 10 together with the annular outer portion 4b, thereby increasing the strength of the solid paste 4. Thereby, the solid paste 4 is prevented from being broken or broken.

  Further, in the feeding device 1 of the present invention, the cylinder body 6 is arranged so that the cap 12 faces down and the paste material 4 ′ is injected, so that the front end of the solid paste 4 is simultaneously solidified with the paste material 4 ′. A part can be made into a desired shape. Specifically, the volume of the paste material 4 ′ shrinks when the paste material 4 ′ is solidified from the heated and melted state. When the paste material 4 ′ is solidified, the hole 14 side of the cylinder body 6 of the paste material 4 ′, that is, the inner surface side is solidified first, and the central portion of the paste material 4 ′ is solidified last. A deep dent on the trumpet is formed on the upper surface of the part. In the feeding device 1 of the present invention, by arranging the cylinder body 6 so that the cap 12 is at the bottom, such a dent is generated in the solid glue 4 located inside the center hole 26 of the slider 10 and is visible from the outside. In contrast, the tip of the solid paste 4 has a hemispherical shape according to the recess 52 of the inner cap 50.

  In contrast to the present invention, in the conventional feeding tool 80 shown in FIG. 12, since the slider 82 has a wall 82e, if the cylinder body is not arranged so that the cap is on the top, the paste material of the solid glue 88 is used as the slider 82. Cannot be injected into the central hole 82b. Therefore, the dent is generated at the tip of the solid paste 88. In order to make the tip of the solid paste 88 convex, a new paste material is further injected, or a removable extension cylinder is prepared to form an extra solid paste 88, and the extension cylinder is removed. Therefore, it is necessary to cut or process excess solid glue 88.

  Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications are possible within the scope of the invention described in the claims. Needless to say, these are also included within the scope of the present invention.

  The shape of the tip portion 10a of the slider 10 is arbitrary as long as a contact area where the solid paste 4 does not come off the slider 10 is secured. FIG. 10 is a cross-sectional view showing a modification of the tip of the slider. As shown in FIG. 10A, the second stepped portion 42d and the third outer surface 42e may be omitted, and as shown in FIG. 10B, a recess 46 is added to the outer surface 43. May be.

  In the above-described embodiment, the stick-like material has been described as the solid paste 4. However, any material can be used as long as the stick-like material can flow, such as lipstick, solid paste, crayon, and solid correction agent.

  Moreover, in the said embodiment, although the cross section of the acceptance hole 14 of a cylinder main body, the front-end | tip part 10a of the slider 10, the center hole 26, etc. was circular, other forms may be sufficient.

It is a perspective view of the feeding apparatus by this invention. It is a disassembled perspective view of the feeding apparatus by this invention which abbreviate | omits a rod-shaped object. FIG. 3 is an enlarged cross-sectional view of a cylinder main body taken along line 3-3 in FIG. FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. FIG. 5 is a cross-sectional view taken along line 5-5 in FIG. FIG. 6 is an enlarged cross-sectional view taken along line 6-6 in FIG. It is sectional drawing in line 7-7 of FIG. It is a figure in the same cross section as FIG. 7 which shows the filling method of a rod-shaped object. It is a figure in the same cross section as FIG. 7 which shows the filling method of a rod-shaped object. It is a figure in the same cross section as FIG. 4 which shows the modification of the front-end | tip part of a slider. It is a perspective view which shows an example of the slider of the conventional feeding apparatus. It is a perspective view which shows the other example of the slider of the conventional feeding apparatus. It is a perspective view which shows the prototype slider.

Explanation of symbols

1 Feeding device 2 Axis 4 Solid glue (stick)
4b Outer part 4c Center part 6 Cylinder body (a pair of cylinders)
8 Tail plugs (a pair of cylinders)
DESCRIPTION OF SYMBOLS 10 Slider 10a Tip part 14 Reception hole 16 Guide rail 26 Center hole 28b, 28c Guide surface 42a 1st outer surface part 42b 1st step part 42c 2nd outer surface part 43 Outer surface 44 Crevice 46 Recess D1 Inner diameter D4 center of receiving hole Hole inner diameter

Claims (5)

A pair of cylinders that can rotate relative to each other about the axis, a slider that moves in the axial direction through the pair of cylinders by the relative rotation of the pair of cylinders, and a pair of cylinders that are fixed to the slider and moved by the slider And a slider having a tip portion to which the rod-like material is fixed, and one of the pair of cylinders is a receiving hole for receiving the tip portion of the slider. In the feeding device in which a gap is provided between the tip side of the tip of the slider and the receiving hole of the one cylindrical body,
The front end portion of the slider is disposed behind the first outer surface portion so as to form an annular step portion between the first outer surface portion on the front end side and the first outer surface portion. A second outer surface portion having a smaller contour than the outer surface portion of 1, and a central hole extending in the axial direction;
A rod-like object fixed to the front end portion of the slider has an annular outer portion extending from the front end side of the slider through the gap onto the first outer surface, the stepped portion, and the second outer surface, A feeding device comprising a central portion extending into the central hole from the tip side of the slider. The receiving hole of the one cylinder is cylindrical, and the center hole at the tip of the slider is cylindrical,
2. The feeding device according to claim 1, wherein an inner diameter of the center hole of the slider is ½ or more of an inner diameter of the receiving hole of the one cylindrical body.   2. The feeding device according to claim 1, wherein a cross-sectional area of a central hole at a tip end portion of the slider is ¼ or more of a cross-sectional area of a receiving hole of the one cylindrical body. A guide rail for guiding the slider is configured as a portion protruding inward of the receiving hole of the one cylindrical body,
2. The feeding device according to claim 1, wherein a front end portion of the slider further has a guide surface that protrudes outward from the first outer surface and is guided by the guide rail. A pair of cylinders that can rotate relative to each other about the axis, a slider that moves in the axial direction through the pair of cylinders by the relative rotation of the pair of cylinders, and a pair of cylinders that are fixed to the slider and moved by the slider And a slider having a tip portion to which the rod-like material is fixed, and one of the pair of cylinders is a receiving hole for receiving the tip portion of the slider. In the feeding device in which a gap is provided between the tip side of the tip of the slider and the receiving hole of the one cylindrical body,
The front end of the slider has an outer surface having a certain contour in the axial direction, an annular recess provided in the outer surface, and a central hole extending in the axial direction,
The rod-shaped object fixed to the slider tip is formed in an annular outer portion that extends from the tip of the slider through the gap to the top of the outer surface and into the recess, and from the tip of the slider to the center hole. And a central portion extending to the feeding device.

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