JP5887584B2 - Feeding container - Google Patents

Description

  The present invention relates to a feeding container for feeding and using a coating material.

  As a conventional feeding container, for example, as described in Patent Document 1, a tip tube having a discharge port at the tip, and a rod-like body (inside of the tip tube, which is inserted so as to be movable in a predetermined length in the front-rear direction) A pipe member loaded with a coating material) is known. In such a feeding container, by moving the rod-shaped body moving body (moving portion) forward by the feeding mechanism, the pipe member moves forward together with the rod-shaped body with respect to the front tube, and after the pipe member reaches the forward limit, The rod-shaped body advances with respect to the cylinder and the pipe member, and as a result, the rod-shaped body is put into use.

JP 2006-305318 A

  Here, in the above-described feeding container, generally, the pipe member is filled with a molten coating material forming material and cooled and solidified, whereby the coating material is loaded into the pipe member. When loading this coating material, the pipe member is moved forward with respect to the front tube so that the coating material can be loaded properly (for example, the shape and length of the loaded coating material can be easily optimized). It is preferable to be located at. Thus, the above-described feeding container may be in a state in which the moving member is advanced by the feeding mechanism, for example, and the pipe member is advanced with respect to the front tube before the coating material is loaded. However, in this case, the pipe member may be unintentionally retracted due to vibration during transportation of the feeding container or other impacts.

  The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a feeding container capable of suppressing the pipe member from moving backward with respect to the front tube before the pipe member is loaded with the coating material. And

  In order to solve the above problems, a feeding container according to the present invention is a feeding container that includes a feeding mechanism and a moving part in a container, moves the moving part by the feeding mechanism, and feeds the coating material forward. A front tube having a discharge port, a pipe member inserted into the front tube so as to be slidable for a predetermined length in the front-rear direction, and loaded with a coating material therein, and provided in the container, the pipe member has a predetermined biasing force. And an elastic member for urging forward.

  In this feeding container, the pipe member inserted so as to be slidable by a predetermined length in the front-rear direction with respect to the front tube is urged forward by a predetermined urging force by the elastic member. Therefore, for example, even if vibration or other impacts are applied and the pipe member tries to retreat, the retreat can be suppressed with this predetermined urging force. That is, it is possible to suppress the pipe member from moving backward with respect to the front tube before the coating material is loaded on the pipe member.

  In addition, the pipe member urged forward by a predetermined urging force cannot be retracted from a predetermined position before the coating material is loaded, and the moving portion is moved forward and backward after the coating material is loaded. Accordingly, it is preferable that the front tube can be advanced and retracted. Accordingly, the pipe member can be preferably prevented from moving backward before the coating material is loaded, and the pipe member can be suitably advanced and retracted after the coating material is loaded.

  The moving part includes a piston that slides in the pipe member and a moving body having a male screw on the outer peripheral surface, and the piston and the moving body are engaged with each other so as to be relatively movable in the axial direction. Before loading the coating material, the piston may be urged forward by the first sliding resistance force between the pipe member and the piston as the pipe member is urged forward by the elastic member. preferable. In this case, before the application material is loaded, when the pipe member is urged forward and advanced, the piston can also be reliably advanced within a certain amount range so as to follow the advance. Therefore, before the coating material is loaded, it is possible to suppress the advancement of the pipe member relative to the front tube from being hindered by the presence of the piston (the piston acts so as to stop the advancement of the pipe member).

  The predetermined biasing force is preferably smaller than the sum of the first sliding resistance force between the pipe member and the piston and the second sliding resistance force between the pipe member and the coating material after the coating material is loaded. In this case, the above-described effect of the pipe member moving forward and backward as the moving part moves forward and backward after the coating material is loaded can be suitably exhibited.

  The click mechanism includes a click mechanism that generates a click feeling with relative rotation between the container front part and the container rear part. The click mechanism includes a pair of click protrusions, and the engagement and release of the pair of click protrusions. A click feeling is generated, and the elastic member preferably biases the click mechanism so that the pair of click protrusions engage with each other. In this case, the elastic member that urges the pipe member forward can be shared as an elastic member that urges the pair of click protrusions to engage with each other.

  Further, when the container front part and the container rear part are relatively rotated in one direction, the feeding mechanism moves the moving part by the screwing action of the first and second screwing parts, and is further relatively rotated in one direction. Then, the screwing action of the first screwing part is released and the moving part is continuously moved only by the second screwing action, and the elastic member moves the first screwing part released from the screwing action. It is preferable to bias so as to return to the screwing state. In this case, the elastic member that urges the pipe member forward can be shared as an elastic member that urges the first screwing portion to be screwed back.

  According to the present invention, it is possible to suppress the pipe member from moving backward with respect to the front tube before the coating material is loaded into the pipe member.

It is a longitudinal cross-sectional view which shows the delivery container which concerns on one Embodiment of this invention. It is a disassembled perspective view which partially shows the delivery container of FIG. It is a disassembled perspective view which shows the operation cylinder of the feeding container of FIG. It is a perspective view which shows the soft part in the rotation cylinder of the feeding container of FIG. It is a perspective view which shows the hard part in the rotation cylinder of the feeding container of FIG. It is a perspective view which shows the moving screw cylinder of the feeding container of FIG. It is a perspective view which shows the front tube of the feeding container of FIG. It is a longitudinal cross-sectional view which shows the front tube of the delivery container of FIG. It is a perspective view which shows the pipe member of the delivery container of FIG. It is a longitudinal cross-sectional view which shows the pipe member of the delivery container of FIG. It is a perspective view which shows the spring member of the feeding container of FIG. (A) is an enlarged longitudinal cross-sectional view for demonstrating operation | movement of the delivery container of FIG. 1, (b) is an enlarged longitudinal cross-sectional view which shows the continuation of Fig.12 (a). FIG. 14A is an enlarged longitudinal sectional view showing a continuation of FIG. 12B, and FIG. 13B is an enlarged longitudinal sectional view showing a continuation of FIG. (A) is an enlarged longitudinal sectional view showing a continuation of FIG. 13 (b), and (b) is an enlarged longitudinal sectional view showing a continuation of FIG. 14 (a). (A) is an enlarged longitudinal sectional view showing a continuation of FIG. 14 (b), and (b) is an enlarged longitudinal sectional view showing a continuation of FIG. 15 (a).

  DESCRIPTION OF EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings. In the following description, the same or equivalent elements will be denoted by the same reference numerals, and redundant description will be omitted.

  FIG. 1 is a longitudinal sectional view showing a feeding container according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view showing a part of the feeding container of FIG. As shown in FIGS. 1 and 2, the feeding container 100 of the present embodiment accommodates the coating material M and can be pushed out and pulled back appropriately by the user's operation.

  Examples of the coating material M include various stick-shaped cosmetics such as lipstick, lip gloss, eyeliner, eye color, eyebrow, lip liner, cheek color, concealer, beauty stick, hair color, and writing tools. It is possible to use a rod-shaped core, etc., in particular, a very soft rod-like body (semi-solid, soft solid, soft, jelly, mousse, kneaded or the like containing these) is used. Is preferred. Further, a thin rod-shaped object having an outer diameter of 1 mm or less and a thick rod-shaped body having a diameter of 10 mm or more can be used.

  The feeding container 100 includes a front tube 1 having a filling region 1x filled with a coating material M therein and having a discharge port 1a at the tip, and a rear half portion of the front tube 1 inserted in the front half thereof. A main body cylinder 2 that is engaged and connected in an axial direction and a rotation direction around the axis (hereinafter also simply referred to as a “rotation direction”), and a rear end portion of the main body cylinder 2 that is rotatable relative to the main body cylinder 2. And the operation cylinder 3 constitutes a front part of the container and the operation part 3 constitutes a rear part of the container. “Axis” means a center line extending in the front-rear direction of the feeding mechanism 100, and “Axis direction” means a direction along the axis (hereinafter the same).

  The feeding container 100 includes a rotation stopper cylinder 4, a moving screw cylinder 5, a moving body (moving part) 6, and a piston (moving part) 7. The rotation stop cylinder 4 is rotatable relative to the main body cylinder 2 and engages in the axial direction. The moving screw cylinder 5 is engaged with the main body cylinder 2 so as to be capable of synchronous rotation and axial movement, and is screwed to the rotation stopper cylinder 4 via a first screwing portion (feeding mechanism) 8. The movable body 6 is engaged with the operation cylinder 3 so as to be able to rotate synchronously and move in the axial direction, and is screwed to the moving screw cylinder 5 via a second screwing portion (feeding mechanism) 9. The piston 7 is attached to the front end (tip) portion of the moving body 6 to form the rear end of the filling region 1x. Further, the feeding container 100 of the present embodiment includes a pipe member 10 that is inserted and accommodated in the axial direction so as to be slidable with respect to the front tube 1, and a spring that urges the pipe member 10 forward with a predetermined urging force Fs. And a member 14.

  In the feeding container 100, when the main body cylinder 2 (or the front cylinder 1 is acceptable) and the operation cylinder 3 are relatively rotated in one direction which is one rotation direction in the initial state, the movable screw cylinder 5 moves forward (in the axial direction). The moving body 6 moves forward with the moving screw cylinder 5 and simultaneously moves forward with respect to the moving screw cylinder 5 alone. Thereby, the piston 7 moves forward with respect to the front tube 1 and the pipe member 10. When the main body cylinder 2 and the operation cylinder 3 are further rotated relative to each other in the same direction after the movable screw cylinder 5 reaches the forward limit, the movable body 6 moves forward alone with respect to the movable screw cylinder 5, and the leading cylinder 1 And the piston 7 continues to move forward with respect to the pipe member 10.

  On the other hand, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction, which is the rotation direction opposite to the one direction, the moving screw cylinder 5 moves backward (moves to the other side in the axial direction), and the moving body 6 moves. At the same time as the moving screw cylinder 5 moves backward, the moving screw cylinder 5 also moves backward alone. As a result, both the piston 7 and the pipe member 10 move backward with respect to the front tube 1. When the main body cylinder 2 and the operation cylinder 3 are further rotated relative to each other in the same direction after the movable screw cylinder 5 reaches the retreat limit, the movable body 6 retreats independently with respect to the movable screw cylinder 5, and the leading cylinder 1 On the other hand, both the piston 7 and the pipe member 10 continue to retreat, and then the retreat of the pipe member 10 stops, and the piston 7 retreats with respect to the front tube 1 and the pipe member 10.

  As shown in FIG. 1, the main body cylinder 2 is formed of, for example, an ABS resin (acrylonitrile / butadiene / styrene copolymer synthetic resin) and has a cylindrical shape. The main body cylinder 2 is configured such that the front cylinder 1 and the moving screw cylinder 5 are engaged with each other on the inner peripheral surface of the central portion in the axial direction in the rotation direction. It has a knurled 2a extending a predetermined length in the axial direction. Further, on the inner peripheral surface of the front end portion of the main body cylinder 2, an annular uneven portion (in which the uneven portions are arranged in the axial direction) 2 b for engaging the front tube 1 in the axial direction is provided.

  On the inner peripheral surface of the main body cylinder 2, on the rear side of the knurl 2a, arc-shaped convex portions 2c extending in the circumferential direction along the inner peripheral surface are assumed to engage the rotation stopper cylinder 4 in the axial direction. A pair is formed so as to face each other. Furthermore, on the rear side of the arcuate convex portion 2c on the inner peripheral surface of the main body cylinder 2, the arcuate convex portion extending in the circumferential direction along the inner peripheral surface is assumed to engage the operation cylinder 3 in the axial direction. A pair of portions 2d are formed so as to face each other. These arc-shaped convex portions 2c and 2d are provided intermittently (displaced) in the circumferential direction so as not to overlap each other when viewed in the axial direction. The main body cylinder 2 has a cylindrical member 21 at its front end.

  FIG. 3 is an exploded perspective view showing an operation cylinder of the feeding container of FIG. As shown in FIG. 3, the operation cylinder 3 includes a main body portion 31, a bottomed cylindrical tail plug portion 38 that is extrapolated to the rear end portion of the main body portion 31, and a circle provided in the tail plug portion 38. And a columnar weight portion 39. The main body portion 31 is formed of, for example, ABS resin, and has a cylindrical portion 31x configured in a bottomed cylindrical shape that opens forward, and a shaft body 31y that is erected at the center of the bottom portion of the cylindrical portion 31x toward the front end side. ,have.

  An annular convex portion 32 that is engaged with the main body tube 2 in the axial direction and abuts against the rear end of the rotation stop tube 4 is provided at the front portion of the outer peripheral surface of the tube portion 31x. In addition, an annular flange 33 is provided at the center of the outer peripheral surface of the cylindrical portion 31x as a contact with the rear end surface of the main body cylinder 2. Furthermore, a convex portion 34 for engaging the tail plug portion 38 in the axial direction and a groove portion 35 for engaging the tail plug portion 38 in the rotational direction are provided at the rear end portion of the cylindrical portion 31x. Yes.

  This cylinder part 31x has the some convex part 36 which comprises a ratchet tooth. The convex portion 36 is provided so as to be engaged with a convex portion 44 (described later) of the rotation stopper cylinder 4 and protrudes radially outward on the front side of the outer peripheral surface of the cylindrical portion 31x. Here, the convex portions 36 have a sawtooth shape in the circumferential direction, and are provided at equidistant positions in the circumferential direction on the outer peripheral surface.

  A side surface 36a on one side in the circumferential direction of these convex portions 36 (the side abutting on the convex portion 44 of the rotation stopper cylinder 4 when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction) has a mountain shape. As shown in FIG. On the other hand, the side surface 36b on the other side in the circumferential direction of the convex portion 36 (the side that contacts the convex portion 44 of the rotation stopper cylinder 4 when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction) is on the outer circumferential surface. On the other hand, it is configured to incline in the same direction as the side surface 36a and enter the inner side in the circumferential direction.

  The shaft body 31y has a non-circular outer shape. Specifically, the shaft body 31y has a non-circular cross-sectional shape provided with protrusions 37 that are arranged on the outer peripheral surface of the cylindrical body so as to protrude radially outward at six circumferential positions and extend in the axial direction. It is said that.

  The tail plug portion 38 is formed of, for example, ABS resin, and is attached to the main body portion 31 so as to be able to rotate synchronously and not to move in the axial direction so as to cover the rear portion of the main body portion 31. The weight portion 39 is made of metal and is disposed between the main body portion 31 and the tail plug portion 38 so as to be covered with the tail plug portion 38. The weight portion 39 can give a feeling of weight to the entire feeding container 100, and can enhance a sense of quality.

  As shown in FIGS. 1 and 3, the operation cylinder 3 including the main body portion 31, the tail plug portion 38, and the weight portion 39 is inserted into the main body cylinder 2 at the front side of the main body portion 31, and the collar portion 33 is the main body cylinder. 2 is abutted against the rear end surface, and the annular convex portion 32 of the main body portion 31 is engaged with the arc-shaped convex portion 2d of the main body cylinder 2 in the axial direction so that it can be rotated relative to the main body cylinder 2 in the axial direction. Connected and mounted. At this time, an O-ring R is interposed between the main body portion 31 and the main body cylinder 2 in the radial direction, whereby an appropriate rotational resistance is imparted to the relative rotation between the main body cylinder 2 and the operation cylinder 3.

  4 is a perspective view showing a soft portion in the rotating cylinder of the feeding container of FIG. 1, and FIG. 5 is a perspective view showing a hard portion of the rotating cylinder of the feeding container of FIG. As shown in FIGS. 4 and 5, the rotation stopper cylinder 4 includes a soft portion 104 and a hard portion 105 that is externally fitted and fixed to the front side of the soft portion 104.

  As shown in FIG. 4, the soft portion 104 includes a cylindrical small-diameter portion 104x located on the front side thereof, a cylindrical large-diameter portion 104y continuous on the rear side of the small-diameter portion 104x via a step surface 104p, have. On the front side of the inner peripheral surface of the small diameter portion 104x, a plurality of protrusions 41 are provided as female threads constituting one of the first screwing portions 8 having a lead of 12 mm and a pitch of 2 mm. These ridges 41 extend spirally along the inner peripheral surface, and the ends of the adjacent ridges 41 are spaced apart from each other in the axial direction. Further, six ridges 41 are provided intermittently so as not to overlap each other when viewed in the axial direction.

  The large diameter portion 104y has a plurality of convex portions 44 that constitute ratchet teeth. The convex portion 44 is provided so as to be engaged with the convex portion 36 of the operation cylinder 3 in the circumferential direction, and protrudes radially inward on the rear side of the inner peripheral surface of the large diameter portion 104y. Here, the convex portions 44 have a sawtooth shape in the circumferential direction, and are provided at equal circumferential positions on the inner circumferential surface.

  The side surface 44a on the other side in the circumferential direction of these convex portions 44 (the side abutting on the convex portion 36 of the operation cylinder 3 when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction) is formed in a mountain shape. It is inclined with respect to the outer peripheral surface. On the other hand, the side surface 44b on one side in the circumferential direction of the convex portion 44 (the side abutting on the convex portion 36 of the operation cylinder 3 when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction) It is configured to incline in the same direction as the side surface 44a and enter the inner side in the circumferential direction.

  The soft portion 104 is softer than the moving screw cylinder 5 and the operation cylinder 3. Specifically, the soft portion 104 is formed of a material softer than POM (polyacetal) which is a material of the moving screw cylinder 5 and softer than ABS resin which is a material of the operation cylinder 3, Injection molded with a thermoplastic elastomer. As the thermoplastic elastomer, any of polyester, polystyrene, polyolefin, and the like can be used.

  As shown in FIG. 5, the hard portion 105 has a cylindrical shape, and the inner diameter thereof is equal to the outer diameter of the small diameter portion 104 x of the soft portion 104. An annular convex portion 106 for engaging with the main body cylinder 2 in the axial direction is provided at the rear end portion of the outer peripheral surface of the hard portion 105. Further, an annular convex portion 107 is provided at the front end portion of the inner peripheral surface of the hard portion 105 to restrict the insertion direction with respect to the soft portion 104 (that is, to prevent the front and rear direction from being reversed). Yes.

  The hard portion 105 is harder than the soft portion 104. Specifically, the hard portion 105 is injection-molded with POM, ABS resin, or HDPE (high density polyethylene), and has a higher hardness than the soft portion 104. Then, as shown in FIG. 1, the hard portion 105 has a small-diameter portion of the soft portion 104 until the rear end surface 105a (see FIG. 8) contacts the step surface 104p with the annular convex portion 107 positioned on the front side. 104x is extrapolated, fitted and fixed (fixed).

  As shown in FIGS. 1, 4, and 5, the rotation-stop cylinder 4 composed of the soft portion 104 and the hard portion 105 is inserted into the main body cylinder 2 from the front side, and the annular convex portion 106 is an arc-shaped convex portion of the main body cylinder 2. The portion 2c is engaged in the axial direction. Further, the rotation stopper cylinder 4 has a rear side thereof extrapolated to the main body 31 of the operation cylinder 3, and a rear end surface of the rotation stopper cylinder 4 butted against an annular convex portion 32 (see FIG. 4). Thereby, the rotation stop cylinder 4 is clamped in the axial direction, is relatively rotatable with respect to the main body cylinder 2, and is engaged and mounted in the axial direction.

  At the same time, the rotation stopper cylinder 4 is engaged with the convex portion 44 of the soft portion 104 in contact with the convex portion 36 of the operation cylinder 3 in the rotation direction (circumferential direction). Accordingly, a predetermined engagement force is generated between the convex portion 44 and the convex portion 36 by, for example, an elastic force (flexibility) due to the flexibility of the soft portion 104. As a result, the operation cylinder 3 and the rotation stop cylinder 4 can be synchronously rotated when they are relatively rotated in one direction, and can be synchronously rotated when a small rotational force is applied when they are relatively rotated in the other direction. At the same time, when a large rotational force is applied, relative rotation is possible (details will be described later).

  FIG. 6 is a perspective view showing a moving screw cylinder of the feeding container of FIG. As shown in FIG. 6, the moving screw cylinder 5 is formed of, for example, POM and has a cylindrical shape. The front end portion 5x of the moving screw cylinder 5 is configured to be able to expand radially outward by a pair of slits 51 that extend in the axial direction from the front end and face each other. A plurality (four in this case) of convex portions 52 are provided at positions near the slit 51 on the front side of the outer peripheral surface of the front end portion 5x to adjust the outer diameter of the front end portion 5x.

  A female screw 53 constituting one of the second screwing portions 9 is provided in a region extending from the front end to a predetermined length on the inner peripheral surface of the front end portion 5x. Here, the pitch of the second screwing portion 9 is finer than the pitch of the first screwing portion 8, and the lead of the first screwing portion 8 (the main body cylinder 2 and the operation cylinder 3). The amount of propulsion per rotation relative to the second screw 9 is set larger than the lead of the second screwing portion 9.

  Further, an annular flange 54 is provided on the rear side of the outer peripheral surface of the central portion of the moving screw cylinder 5. A plurality of protrusions 55 extending along the axial direction are provided on the outer peripheral surface of the flange portion 54 so as to engage with the knurl 2 a (see FIG. 1) of the main body cylinder 2. Further, a protrusion 56 as a male screw constituting the other of the first screwing portion 8 is provided on the outer peripheral surface of the rear end portion of the moving screw cylinder 5. These ridges 56 are provided on a pair of opposed portions facing each other across the axis on the outer peripheral surface. That is, it is provided intermittently so as to extend in a spiral shape only at the facing portion.

  As shown in FIGS. 1 and 6, the moving screw cylinder 5 is inserted into the main body cylinder 2, and the protrusion 55 engages with the knurled 2 a of the main body cylinder 2, so that the main cylinder 2 is rotated in the rotational direction. It is engaged and mounted so as to be movable in the axial direction. The moving screw cylinder 5 is configured to be extrapolated to the shaft body 31 y of the operation cylinder 3, and the protrusion 56 at the rear end thereof is screwed with the protrusion 41 of the soft part 104 of the rotation stopper cylinder 4. Yes. Here, since the soft portion 104 is soft, the plurality of protrusions 56 are engaged with the plurality of protrusions 56 at the same time in order to fully exhibit the screwing action of the first screwing portion 8. .

  As shown in FIG. 1, the moving body 6 is formed of, for example, POM and is formed in a cylindrical shape having a flange portion 6a on the distal end side. The movable body 6 includes a male screw 6b that constitutes the other of the second screwing portions 9 on the outer peripheral surface extending from the rear side to the rear end portion of the flange portion 6a. On the inner peripheral surface of the moving body 6, at six positions in the circumferential direction, protrusions 6c that project radially and extend in the axial direction are provided so as to engage with the operation cylinder 3 in the rotational direction. The moving body 6 is externally inserted between the shaft body 31y of the operation cylinder 3 and the moving screw cylinder 5 from the rear end side. At this time, the moving body 6 has its male screw 6b screwed with the female screw 53 of the moving screw cylinder 5, and its protrusion 6c entered between the protrusions 37, 37 of the shaft 31y and engaged in the rotational direction. By doing so, the operation cylinder 3 is mounted so as to be able to rotate synchronously and move in the axial direction.

  The piston 7 is formed of, for example, PP (polypropylene), HDPE, LLDPE (linear low density polyethylene) or the like. The piston 7 has a bell shape that is tapered toward the front end, and the inner peripheral surface of the recess 7 a that is recessed in the rear end surface is movable by a predetermined length in the axial direction relative to the moving body 6. An engaging annular projection 7b is provided. The piston 7 is extrapolated to the moving body 6 and its annular projection 7b engages the moving body 6 in the axial direction, so that the piston 7 can rotate synchronously with the moving body 6 and can move relative to the moving body 6 by a certain amount ( It can be moved within a predetermined range. The movable body 6 and the piston 7 are slidable in the axial direction with a third sliding resistance force F3.

  FIGS. 7 and 8 are a perspective view and a longitudinal sectional view showing a leading tube of the feeding container of FIG. 1, and FIGS. 9 and 10 are a perspective view and a longitudinal sectional view showing a pipe member of the feeding container of FIG. As shown in FIGS. 7 and 8, the front tube 1 has a cylindrical shape, and the opening at the front end thereof is a discharge port 1 a for causing the coating material M to appear. The front tube 1 is formed of, for example, PET (polyethylene terephthalate) resin, PCTA (polycyclohexanedimethylene terephthalate) resin, ABS resin, or the like. The discharge port 1a is formed by an inclined angle surface that is inclined at a predetermined angle with respect to the axial direction. In addition, the discharge port 1a may be a flat shape formed by a vertical surface in the axial direction or a mountain shape.

  Further, on the outer peripheral surface of the front tube 1, an annular convex concave portion 1 b for engaging with the annular concave and convex portion 2 b of the main body tube 2 in the axial direction is provided. Further, on the outer peripheral surface of the front tube 1, a ridge 1 g extending in the axial direction is provided on the rear side of the annular convex recess 1 b so as to be engaged with the knurling 2 a of the main body tube 2 in the rotational direction.

  In the tube hole 11 penetrating in the axial direction of the front tube 1, an application material hole 11a for advancing and retracting only the application material M is formed in a region on the rear side of a predetermined length from the discharge port 1a at the tip. In the cylindrical hole 11, a pipe member hole 11 b for advancing and retracting the pipe member 10 together with the coating material M is formed in the rear region from the coating material hole 11 a.

  The pipe member hole 11b has a larger diameter than the coating material hole 11a, and accommodates the pipe member 10 so as to be slidable in the axial direction. At the rear end portion of the pipe member hole 11b, a hole portion 12x penetrating in the radial direction and extending in the axial direction and a groove portion 12y extending in the axial direction are assumed to be engaged with the pipe member 10 in the rotational direction. It is provided so as to face each other.

  Between the coating material hole 11a and the pipe member hole 11b, a step surface 11c that engages the tip surface of the pipe member 10 in the axial direction is formed to stop the advancement of the pipe member 10. The step surface 11c has a surface shape corresponding to the tip of the pipe member 10, and here is formed by an inclined angle surface inclined at an angle corresponding to the discharge port 1a (the predetermined angle).

  Further, a stepped surface 11d is formed at the central portion in the axial direction of the pipe member hole 11b to ensure the thickness of the pipe member 10 and stabilize the moldability. The step surface 11d is an annular inclined surface that extends in the circumferential direction and is inclined so that the diameter of the rear side is increased with respect to the axial direction. Thereby, in the pipe member hole 11b, the hole diameter on the rear side of the step surface 11d is slightly larger than the hole diameter on the front side of the step surface 11d.

  As shown in FIG. 1, the pipe member 10 has a cylindrical shape, and the opening at the front end thereof is formed by an inclined angle surface that is inclined at the predetermined angle in the same manner as the discharge port 1a. The pipe member 10 includes a filling region 1x therein. That is, in the pipe member 10, the coating material M is filled and loaded, and the coating material M is in close contact with the inside so as to be slidable in the axial direction. The pipe member 10 and the coating material M are slidable in the axial direction with the second sliding resistance force F2.

  The inner diameter of the pipe member 10 is equal to the inner diameter of the coating material hole 11 a of the front tube 1. Thereby, when the pipe member 10 is accommodated in the pipe member hole 11b of the front tube 1, the inner peripheral surface of the pipe member 10 and the inner peripheral surface of the coating material hole 11a of the front tube 1 are flush with each other. Yes. On the other hand, the outer diameter of the pipe member 10 is slightly smaller (for example, 15/100 mm) than the inner diameter of the pipe member hole 11b of the front tube 1. Thereby, when the pipe member 10 is accommodated in the pipe member hole 11b of the front tube 1, a predetermined clearance is formed between the pipe member 10 and the front tube 1 in the radial direction. It can slide in the axial direction with respect to the front tube 1.

  As shown in FIGS. 9 and 10, a step surface 10 a is formed on the outer peripheral surface of the pipe member 10 on the front side in the axial center portion so as to correspond to the step surface 11 d (see FIG. 8) of the pipe member hole 11 b. Has been. The step surface 10a is an annular inclined surface similar to the step surface 11d. That is, the step surface 10a extends in the circumferential direction, and is inclined so that the rear side has a larger diameter than the axial direction. Thereby, in the pipe member 10, the outer diameter on the rear side of the step surface 10a is slightly larger than the outer diameter on the front side of the step surface 10a.

  In addition, on the rear side of the axial center portion on the outer peripheral surface of the pipe member 10, a pair of pipe members 11b that extend in the axial direction is assumed to be engaged with the hole 12x and the groove 12y of the pipe member hole 11b in the rotational direction. The protrusions 10x and 10y are provided so as to face each other. On the outer peripheral surface of the pipe member 10, on the rear side of the protrusions 10x and 10y, a flange portion 10b is provided as a protrusion protruding outward in the radial direction and extending along the circumferential direction.

  The flange portion 10b is abutted against the front end surface of the spring member 14 and is urged forward by a predetermined urging force. Here, the two planar portions 10c and 10c are opposed to the annular outer peripheral surface. It is configured in the provided shape. Also, on the rear side of the flange portion 10b of the pipe member 10, there is an air discharge hole 10d that is circular in cross section and penetrates in the radial direction as a means for discharging the air in the filling region 1x to the outside during assembly. Is provided. A pair of air discharge holes 10d are formed so as to face each other.

  As shown in FIGS. 1, 7 to 10, in the front tube 1, the pipe member 10 is inserted and accommodated in the pipe member hole 11 b so that the pipe member 10 can slide in the axial direction with respect to the front tube 1. ing. At this time, the protrusion 10x is engaged with the hole 12x in the rotation direction, and the protrusion 10y is engaged with the groove 12y in the rotation direction, whereby the relative rotation of the pipe member 10 with respect to the front tube 1 is restricted. ing.

  The front tube 1 in which the pipe member 10 is assembled in this way is inserted between the main body tube 2 and the moving screw tube 5 from the rear side, and the annular concavo-convex portion 2b of the main body tube 2 is axially disposed in the annular convex dent 1b. In addition, the knurl 2a of the main body cylinder 2 is engaged with the protrusion 1g in the rotation direction so that the main body cylinder 2 is engaged with the main body cylinder 2 in the axial direction and the rotation direction. It has become.

  Further, the piston 7 is inserted into the rear end portion of the pipe member 10 of the front tube 1 so as to be tightly adhered. Specifically, the piston 7 is inserted into the pipe member 10 and is located on the rear side of the coating material M in the pipe member 10 and is in close contact with the pipe member 10 so as to be airtight, and the first sliding. It is possible to slide in the axial direction with respect to the pipe member 10 with the resistance force F1.

  FIG. 11 is a perspective view showing a spring member of the feeding container of FIG. As shown in FIG. 11, the spring member 14 is a cylindrical coil spring, and applies a predetermined urging force Fs in the axial direction by its elastic force. The spring member 14 biases the pipe member 10 forward. Further, the spring member 14 is configured so that the first screwing portion 8 is screwed back when the moving screw cylinder 5 moves forward by a certain amount and the screwing action of the first screwing portion 8 is released. The cylinder 5 is urged backward. The value (magnitude) of the predetermined urging force Fs changes according to the degree of expansion / contraction of the spring member 14.

  As the spring member 14, for example, a resin spring produced by injection molding of a cylindrical shape that is partially cut using a resin such as POM or PP (polypropylene), or a spring made of stainless steel wire in a coil shape is used. can do. Here, “screwing return” means a stage in which the protrusion 56 as the male screw of the first screwing portion 8 returns until it contacts the side surface of the screw thread of the protrusion 41 as the female screw. (Hereinafter the same).

Here, the predetermined urging force Fs of the spring member 14 is expressed by the first sliding resistance force F1 between the pipe member 10 and the piston 7 and between the pipe member 10 and the coating material M as shown in the following formula (1). The value is smaller than the sum of the second sliding resistance force F2. Thereby, the spring member 14 urges the pipe member 10 forward with a predetermined urging force Fs, and after the coating material M is filled, the spring member 14 moves the pipe member 10 to the front tube 1 in accordance with the advancement / retraction of the piston 7. Move forward and backward.
Fs <F1 + F2 (1)

Alternatively, the predetermined urging force Fs is set to be larger than the first sliding resistance force F1 as shown in the following formula (1) ′ when at least the pipe member 10 is positioned at the forward limit, and the first sliding force Fs. The value is smaller than the sum of the dynamic resistance force F1 and the second sliding resistance force F2. Here, the predetermined urging force Fs is 1.8N, the first sliding resistance force F1 is 1.3N, and the sum of the first sliding resistance force F1 and the second sliding resistance force F2 is 2.6N. As a result, the spring member 14 urges the pipe member 10 forward with a predetermined urging force Fs, so that the pipe member 10 does not move regardless of the movement of the piston 7 before the filling material 1 is filled with the coating material M. The pipe member 10 is moved forward and backward with respect to the front cylinder 1 in accordance with the advance and retreat of the piston 7 after the coating material M is filled.
F1 <Fs <F1 + F2 (1) ′

In particular, the predetermined biasing force Fs of the present embodiment is the third sliding resistance force F1, the second sliding resistance force F2, the piston and the moving body 6 as shown in the following formula (2). The value is smaller than the sum of the sliding resistance. Alternatively, the predetermined urging force Fs is made larger than the third sliding resistance force F3, and the first sliding resistance force F1 and the second sliding resistance force as shown in the following expression (2) ′. The value is smaller than the sum of F2 and the third sliding resistance force.
Fs <F1 + F2 + F3 (2)
F3 <Fs <F1 + F2 + F3 (2) ′

  As shown in FIG. 1, the spring member 14 is extrapolated to the rear end portion of the pipe member 10, and the front end surface thereof is in contact with the rear surface of the flange portion 10 b of the pipe member 10, and the rear end surface thereof moves. Attached to the front surface of the flange portion 54 (see FIG. 7) of the screw cylinder 5 is attached. Thereby, the spring member 14 is clamped in the axial direction by the flange portions 10b and 54, and the pipe member 10 is urged forward by the predetermined urging force Fs by the compression elastic force, and the moving screw cylinder 5 is urged backward. Energize with the energizing force Fs.

  Next, an example of the operation of the feeding container 100 will be described with reference to FIGS.

  For example, in the feeding container 100 in the initial state shown in FIGS. 1 and 12 (a), the coating material M is loaded in close contact with the coating material hole 11a of the front tube 1, the inner peripheral surface of the pipe member 10, and the piston 7. It is in the state that was done. The pipe member 10 is in a forward limit state (the front end surface of the pipe member 10 is in contact with the stepped surface 11 c of the front tube 1), and the rear end surface is a front side of the flange portion 54 of the moving screw tube 5. It is located away from the front tube 1 and can be retracted with respect to the front tube 1.

  In the feeding container 100 in this initial state, when the user removes the cap C (see FIG. 1) and the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction, which is the feeding direction, FIG. As shown in FIG. 4, the convex portion 44 of the rotation cylinder 4 abuts on the convex portion 36 of the operation cylinder 3 and is locked (solidly engaged) in the rotation direction, and the operation cylinder 3 and the rotation cylinder 4 are rotated synchronously. To do. As a result, the movable screw cylinder 5, the operation cylinder 3, and the rotation stopper cylinder 4 rotate relative to each other, and the first screwing portion 8 constituted by the protrusion 56 of the movement screw cylinder 5 and the protrusion 41 of the rotation stopper cylinder 4. , The moving screw cylinder 5 moves forward by the cooperation of the locking portion constituted by the protrusion 55 of the moving screw cylinder 5 and the protrusion 1g of the leading cylinder 1 (see FIG. 7). Along with this, the moving body 6 moves forward.

  At the same time, the leading cylinder 1 and the moving screw cylinder 5 and the moving body 6 rotate relative to each other, and the second screwing portion 9 constituted by the female screw 53 of the moving screw cylinder 5 and the male screw 6b of the moving body 6 is used. The screwing action works, and the moving body 6 moves forward by the cooperation of the rotation stop portion constituted by the protrusion 37 of the shaft body 31 y and the protrusion 6 c of the moving body 6 in the operation cylinder 3. That is, the moving body 6 moves forward with the moving screw cylinder 5 and simultaneously moves forward with respect to the moving screw cylinder 5.

  As a result, the moving body 6 moves forward by a predetermined amount with respect to the piston 7, the moving body 6 contacts the rear end surface of the piston 7 and presses the piston 7 forward, and the piston 7 moves forward with respect to the front tube 1 and the pipe member 10. To do. Therefore, the coating material M is fed out (advanced) in the front tube 1 and the pipe member 10, and the coating material M appears from the discharge port 1a.

  Subsequently, when the relative rotation in one direction is continued, the protrusion 56 of the moving screw cylinder 5 comes off from the front end of the protrusion 41 of the rotation stopper cylinder 4, and the screwing action of the first screwing portion 8 is released. The moving screw cylinder 5 reaches the forward limit. Therefore, when the relative rotation in one direction is further continued, the screwing action of the second screwing part 9 while the first screwing part 8 is urged so as to be screwed back by the elastic force of the reduction of the spring member 14. Only acts, the piston 7 advances with respect to the front tube 1 and the pipe member 10, and the coating material M advances slowly.

  In addition, when only the screwing action of the second screwing part 9 works and the piston 7 further moves forward, the first screwing part 8 released from the screwing is in a direction to return to the screwing by the biasing force of the spring member 14. Since it is biased, the engagement and disengagement between the protrusions 41 and 56 are repeated (that is, the protrusions 41 and 56 are repeatedly brought into contact with and separated from each other as a pair of click protrusions). Each time such engagement and disengagement, a click feeling is given to the user, and the pushing of the coating material M is detected by the user. At this time, as described above, since the protrusion 41 is softer than the protrusion 56 (has flexibility), the click sound (volume) of the generated click feeling is reduced, and the click sound Is considered profound in the low frequency range.

  Incidentally, when the moving screw cylinder 5 is in the forward limit, the moving screw cylinder 5 is biased rearward by the elastic force of the reduction of the spring member 14, so that the main body cylinder 2 and the operating cylinder are moved in the other direction which is the retraction direction. 3 is relatively rotated, the protrusion 56 of the moving screw cylinder 5 immediately enters the tip of the protrusion 41 of the rotation stopper cylinder 4 adjacent to the rotation direction, and the first screwing portion 8 is immediately screwed back. .

  Next, from this state, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction, a small rotational force is applied to the operation cylinder 3 and the rotation stop cylinder 4 as shown in FIG. The side surface 44a (see FIG. 4) of the convex portion 44 of the rotation stopper cylinder 4 abuts on the side surface 36a (see FIG. 3) of the convex portion 36 of the operation cylinder 3 and is engaged in the circumferential direction with a predetermined engagement force. Since the rotation screw cylinder 4 and the rotation stopper cylinder 4 rotate synchronously, the moving screw cylinder 5, the operation cylinder 3 and the rotation stopper cylinder 4 rotate relative to each other, and the screwing action of the first screwing portion 8 works to move the movement screw cylinder 5. Retreats, and accordingly, the moving body 6 retreats. At the same time, the leading cylinder 1 and the moving screw cylinder 5 and the moving body 6 rotate relative to each other, and the moving action of the second screwing portion 9 works to move the moving body 6 backward. That is, the moving body 6 is retracted along with the moving screw cylinder 5 and at the same time is retracted independently of the moving screw cylinder 5.

  As a result, the movable body 6 moves backward by a predetermined amount with respect to the piston 7, the tip of the movable body 6 engages with the piston 7 annular protrusion 7 b and pulls the piston 7 backward, and the piston 7 moves backward with respect to the front tube 1. At the same time, the pipe member 10 is retracted integrally with the piston 7. Therefore, the coating material M is also fed back with respect to the front tube 1 as the pipe member 10 is moved backward (that is, the pipe member 10 is moved back together with the coating material M with respect to the front tube 1).

  When the pipe member 10 moves backward with respect to the front tube 1, the protrusions 10 x and 10 y are engaged with the hole 12 x and the groove portion 12 y of the front tube 1 in the rotation direction. The pipe member 10 can be retreated straight without rotating in the circumferential direction. Therefore, when the pipe member 10 moves, the inclined angle surface at the opening on the distal end side of the pipe member 10 is always in a substantially parallel state with the inclined angle surface of the discharge port 1a.

  Subsequently, when the relative rotation in the other direction is continued, as shown in FIG. 13B, the flange portion 54 of the moving screw cylinder 5 comes into contact with the front end surface of the rotation stopper cylinder 4, and the first screwing portion 8. And the moving screw cylinder 5 reaches the retreat limit. Then, the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction with an operation rotational force larger than that before the stop of the screwing action in the first screwing portion 8, and a large rotational force is applied to the operation cylinder 3 and the rotation stop cylinder 4. Is applied, the convex portion 44 slides over the side surface 36a of the convex portion 36, gets over the convex portion 36, and the operation cylinder 3 and the rotation stop cylinder 4 are relatively rotated (so-called “idle rotation”). . As a result, only the screwing action of the second screwing portion 9 acts, and the pipe member 10 slowly moves back together with the coating material M as the piston 7 moves backward with respect to the leading tube 1. The protrusion 10x of the pipe member 10 contacts the rear end surface of the portion 12x. Thereby, the retreat of the pipe member 10 with respect to the front tube 1 stops (the pipe member 10 reaches the retreat limit).

  Subsequently, when the relative rotation in the other direction is continued, only the screwing action of the second screwing portion 9 continues to act, the piston 7 moves backward with respect to the stopped pipe member 10, and The application material M is pulled back in the front tube 1 by the pressure reducing action (the action of keeping the sealed state) and retreats (that is, the coating material M moves back with respect to the front tube 1 and the pipe member 10).

  It should be noted that when the moving body 6 is further retracted only by the screwing action of the second screwing part 9, when the convex part 44 of the rotation stop cylinder 4 gets over the convex part 36 of the operation cylinder 3, a click feeling is generated. That is, when the moving body 6 is further retracted, engagement and disengagement (engagement and disengagement) of the convex portions 44 and 36 are repeated, and the user feels a click each time such engagement and disengagement occurs. Is granted. Thereby, a click feeling of 8 times per one rotation of the relative rotation is generated, and the backward movement of the piston 7 and the moving body 6 is detected. At this time, as described above, since the convex portion 44 is softer than the convex portion 36 (has flexibility), the click sound of the generated click feeling is reduced and the click sound is in the low frequency range. It is supposed to be profound.

  Next, from this state, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction again, as shown in FIG. 14 (a), the operation cylinder 3 and the rotation stop cylinder 4 are synchronously rotated. The moving screw cylinder 5, the operation cylinder 3 and the rotation stopper cylinder 4 are rotated relative to each other, and the screwing action of the first screwing portion 8 works to move the moving screw cylinder 5 forward, and the moving body 6 moves forward accordingly. To do. At the same time, the leading cylinder 1 and the moving screw cylinder 5 and the moving body 6 are relatively rotated, and the moving action of the second screwing portion 9 works to move the moving body 6 forward. That is, the moving body 6 moves forward with the moving screw cylinder 5 and simultaneously moves forward with respect to the moving screw cylinder 5.

  As a result, the piston 7 moves forward with respect to the front tube 1 and the pipe member 10, the front end surface of the pipe member 10 is located rearward of the step surface 11 c of the front tube 1, and the pipe member 10 is moved to the front tube 1. Therefore, the pipe member 10 advances integrally with the piston 7. Accordingly, as the pipe member 10 advances, the coating material M is also fed out to the front tube 1 (that is, the pipe member 10 is advanced together with the coating material M with respect to the front tube 1). At this time, as described above, since the protrusions 10x and 10y are engaged with the hole 12x and the groove 12y of the front tube 1 in the rotation direction, the pipe member 10 is directly advanced without rotating in the circumferential direction. Can be made.

  Subsequently, when the relative rotation in one direction is continued, the screwing action of the first screwing portion 8 is released, and after the moving screw cylinder 5 reaches the forward limit, the first screwing is performed to return the screwing. While the portion 8 is urged by the spring member 14, only the screwing action of the second screwing portion 9 acts, and the pipe member 10 moves slowly together with the coating material M as the piston 7 advances with respect to the front tube 1. . Then, as shown in FIG. 14B, the tip end surface of the pipe member 10 is engaged with the step surface 11c of the front tube 1 in the axial direction, and the advancement of the pipe member 10 with respect to the front tube 1 is stopped (pipe member). 10 reaches the forward limit).

  Subsequently, when the relative rotation in one direction is continued, as shown in FIG. 15A, the second screwing is performed while the first screwing portion 8 is urged by the spring member 14 so as to be screwed back. Only the screwing action of the portion 9 continues to act, and the coating material M is pushed out by the piston 7 in the stopped pipe member 10 and moves forward (that is, the coating material M moves forward with respect to the front tube 1 and the pipe member 10). Thereafter, the moving body 6 and the piston 7 reach the forward limit.

  Incidentally, in the forward limit state of the movable body 6 and the piston 7, the second threaded portion 9 remains screwed although the ridge 6c of the movable body 6 is disengaged from the ridge 37 of the operating cylinder 3. Then, the moving body 6 is pulled backward by the spring member 14 via the second screwing portion 9 and the moving screw cylinder 5. Therefore, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction in such a forward limit state, the protrusions 6c and 37 are immediately engaged with each other to act as a rotation stop, and the moving body 6 and the piston 7 moves back immediately.

  Next, from this state, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction again, as shown in FIG. 15B, the operation cylinder 3 and the rotation stop cylinder 4 are synchronously rotated, The moving screw cylinder 5, the operation cylinder 3 and the rotation stopper cylinder 4 are rotated relative to each other, and the screwing action of the first screwing portion 8 works to move the moving screw cylinder 5 backward, and the moving body 6 moves backward accordingly. To do. At the same time, the leading cylinder 1 and the moving screw cylinder 5 and the moving body 6 rotate relative to each other, and the moving action of the second screwing portion 9 works to move the moving body 6 backward. That is, the moving body 6 is retracted along with the moving screw cylinder 5 and at the same time is retracted independently of the moving screw cylinder 5.

  As a result, similarly to the state shown in FIG. 13A described above, the moving body 6 is retracted, the piston 7 is retracted with respect to the front tube 1, and the pipe member 10 is retracted integrally with the piston 7. Therefore, the coating material M is also fed back with respect to the front tube 1 as the pipe member 10 moves backward.

  When the rear end of the movable body 6 is close to the bottom surface of the main body 31 of the operation cylinder 3 and the flange portion 6 of the movable body 6 comes into contact with the end surface of the front end portion 5x of the movable screw cylinder 5, the movable body 6 and the piston. 7 reaches the retreat limit. In this retreat limit state, even if an excessive rotational force is applied to the second screwing portion 9 after being relatively rotated in the other direction, the front end portion 5x is expanded by the slit 51 (see FIG. 6) and the second end portion is expanded. The screwing action of the two screwing parts 9 is released.

  In the feeding container 100 described above, charging of the coating material M into the filling region 1x is usually realized by injecting the molten coating material M into the filling region 1x from the front end side of the front tube 1 and cooling and solidifying. Is done. Here, as described above, since the pipe member 10 is urged forward by the spring member 14 with the predetermined urging force Fs, the pipe member 10 moves backward with respect to the front tube 1 before the coating material M is filled. It is suppressed. Here, the pipe member 10 is positioned at a predetermined position by being urged forward by a predetermined urging force Fs by the spring member 14 before the coating material M is filled, and cannot be retracted from the predetermined position. ing.

  For example, before filling with the coating material M, the pipe member 10 is urged forward by a predetermined urging force Fs and moved forward to a predetermined position (for example, a position 1 mm behind the forward limit) with respect to the front tube 1. is there. The piston 7 is urged forward by the first sliding resistance force F <b> 1 between the pipe member 10 and the piston 7 as the pipe member 10 advances, and is moved forward with respect to the moving body 6 within a certain amount range. is there.

  In this state, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction, first, the moving member 6 acts on the piston 7 by the third sliding resistance force F3 with the pipe member 10 stopped. Move forward while sliding. Thereafter, the movable body 6 and the piston 7 are integrally moved forward, and accordingly, the pipe member 10 is moved forward with respect to the front tube 1 by the first sliding resistance force F1.

  When the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction, first, the moving body 6 slides against the piston 7 by the third sliding resistance force F3 in a state where the pipe member 10 is stopped. Retreat while doing. Thereafter, since the pipe member 10 is urged forward by the predetermined urging force Fs, the movable body 6 is reduced until the spring member 14 is reduced by a certain amount and the predetermined urging force Fs becomes equal to or greater than the first sliding resistance force F1. As the piston 7 moves backward integrally, the pipe member 10 moves backward relative to the front tube 1 by the first sliding resistance force F1. When the predetermined urging force Fs becomes equal to or greater than the first sliding resistance force F1 (here, when the pipe member 10 is located at the predetermined position), the main body cylinder 2 and the operation cylinder 3 are further in the other direction. Even if it is relatively rotated, the pipe member 10 does not move backward with respect to the front tube 1, and the piston 7 moves backward with respect to the pipe member 10, so that the pipe member 10 cannot be moved backward.

  Alternatively, when the predetermined biasing force Fs when the pipe member 10 is positioned at the forward limit is larger than the first sliding resistance force F1 between the piston 7 and the pipe member 10 (when the above expression (1) ′), the pipe member No. 10 does not move with the piston 7 even when the piston 7 moves backward, and is always in a position where it has advanced to the forward limit. That is, before the coating material M is filled, even if the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction, the pipe member 10 is always disposed at the forward limit without retreating.

  Even if the pipe member 10 is disposed at a position retracted from the forward limit because of the predetermined urging force Fs or the sliding resistance forces F1 to F3, the main body cylinder 2 and the operation cylinder 3 are at least one click (click feeling). By rotating relative to one direction, the pipe member 10 can be reliably (mechanically) disposed at the forward limit.

  On the other hand, after the application material M is loaded, a second sliding resistance force F2 is further generated between the pipe member 10 and the application material M. In this regard, as shown in the above equation (1), the predetermined biasing force Fs is set to a value smaller than the sum of the first sliding resistance force F1 and the second sliding resistance force F2. Alternatively, as shown in the above equation (2), the predetermined biasing force Fs is set to a value smaller than the sum of the first sliding resistance force F1, the second sliding resistance force F2, and the third sliding resistance force F3. Therefore, the pipe member 10 is movable with the sliding of the piston 7 (movable with the retreat of the piston 7). Therefore, operation | movement of the delivery container 100 illustrated to FIGS. 12-15 is implement | achieved suitably.

  That is, for example, after the coating material M is loaded, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in one direction, as described above, first, the moving body 6 is moved to the piston while the pipe member 10 is stopped. 7 moves forward with a third sliding resistance force F3. Thereafter, the moving body 6 and the piston 7 are integrally moved forward, and accordingly, the pipe member 10 is moved forward with respect to the front tube 1 by the first sliding resistance force F1 and the second sliding resistance force F2. Further, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction, as described above, the moving body 6 is in contact with the piston 7 with the third sliding resistance force F3 with the pipe member 10 stopped. Retreat while sliding. Thereafter, the movable body 6 and the piston 7 are integrally retracted, and accordingly, the pipe member 10 is retracted with respect to the front tube 1 by the first sliding resistance force F1 and the second sliding resistance force F2.

  As described above, in the feeding container 100 of the present embodiment, since the pipe member 10 is urged forward with the predetermined urging force Fs by the spring member 14 with respect to the front tube 1, for example, vibration or other impacts are applied to the pipe member. Even when 10 is about to move backward, the predetermined biasing force Fs can suppress the backward movement. That is, before the pipe member 10 is loaded with the coating material M, the pipe member 10 can be prevented from moving backward with respect to the front tube 1. In particular, in the present embodiment, the pipe member 10 can be advanced with respect to the front tube 1, and the pipe member 10 can be disposed at the forward limit position.

  As a result, the coating material M can be properly loaded in the filling region 1x, and the shape quality of the coating material M can be prevented from being deteriorated. For example, when the coating material M is loaded, it is possible to prevent the tip surface of the pipe member 10 from being positioned away from the step surface 11c of the front tube 1 and forming a step on the inner surface of the filling region 1x. Thus, it is possible to suppress the unevenness corresponding to the level difference from being formed on the loaded coating material M. Further, since the pipe member 10 can be disposed at the advanced position, it is possible to reduce the necessity of performing the feeding operation of the pipe member 10 in order to properly load the coating material M.

  In the present embodiment, as described above, the pipe member 10 urged forward by the predetermined urging force Fs cannot be retracted from a predetermined position before the application material M is loaded, and the application material M After being loaded, the movable body 6 and the piston 7 can be moved forward and backward with respect to the front tube 1 as the forward and backward movements. Therefore, the pipe member 10 can be suitably prevented from retreating before the coating material M is loaded, and the pipe member 10 can be suitably advanced and retracted after the coating material M is loaded.

  In the present embodiment, as described above, the piston 7 and the moving body 6 are engaged with each other so as to be capable of relative movement in a certain amount in the axial direction. Before the application material M is loaded, the piston 7 is urged forward by the first sliding resistance force F1 between the pipe member 10 and the piston 7 as the pipe member 10 is urged forward. Yes. In this case, before the application material M is loaded, when the pipe member 10 is urged forward and moved forward, the piston 7 can also be reliably advanced within a certain amount range so as to follow the forward movement. Therefore, before the coating material M is loaded, the forward movement of the pipe member 10 with respect to the front tube 1 can be prevented from being inhibited by the presence of the piston 7 (the piston 7 acts so as to stop the forward movement of the pipe member 10). .

  Further, as described above, the predetermined urging force Fs of the present embodiment is always smaller than the sum of the first sliding resistance force F1 and the second sliding resistance force F2. In this case, the above-described effect of causing the pipe member 20 to advance and retract as the piston 7 advances and retracts after the application material M is loaded can be suitably exhibited.

  Further, as described above, the first screwing portion 8 is used as the click mechanism, and the first screwing portion 8 is biased by the spring member 14 so that the protrusions 41 and 56 are engaged and engaged with each other. A click feeling is generated by the release. Thus, in this embodiment, it becomes possible to share the spring member 14 that biases the pipe member 10 forward as an elastic member of the click mechanism that biases the protrusions 41 and 56 to engage with each other. .

  Further, as described above, in a state where the screwing action of the first screwing portion 8 is released (a state in which the moving screw tube 5 is advanced), the moving screw tube 5 is urged rearward by the spring member 14. Therefore, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated in the other direction, the first screwing portion 8 is immediately screwed back. As described above, in this embodiment, the spring member 14 that urges the pipe member 10 forward can be shared as an elastic member that urges the first screwing portion 8 to be screwed back. .

  Incidentally, in this embodiment, the following effects are also exhibited.

  That is, the screwing action of the first and second screwing portions 8 and 9 cooperates in the initial stage from the start of feeding or starting of feeding (during initial operation) until the movement of the pipe member 10 stops. Therefore, for example, even if an abnormality occurs in the first or second screwing portions 8 and 9, it is possible to suppress the occurrence of malfunction related to the order of movement of the pipe member 10 and the coating material M. Therefore, at the time of the initial operation, the pipe member 10 having a large contact area with the coating material M can be reliably moved with respect to the front tube 1, and as a result, the coating material M is brought along with the pipe member 10 to be constant. The amount is surely moved.

  In addition, by rotating the main body cylinder 2 and the operation cylinder 3 in one direction, the pipe member 10 is quickly advanced with respect to the front cylinder 1 by the screwing action of the first and second screwing portions 8 and 9. Then, it can be slowly advanced only by the screwing action of the second screwing part 9. Further, by rotating relatively in the other direction, the pipe member 10 is quickly retracted by the screwing action of the first and second screwing portions 8 and 9 with respect to the front tube 1, and then the second screwing portion. 9 can be moved backward slowly only by the screwing action.

  Further, in normal use in the feeding container 100, it is less necessary to return the coating material M beyond the retreat limit of the pipe member 10, and therefore, the application material M is used by being retracted by the retraction of the pipe member 10. Many. Therefore, in the feeding container 100, even if the coating material M contracts due to temperature conditions and the like, and the adhesion to the pipe member 10 and thus the pressure reducing action is reduced, the coating material M is reliably retracted.

  Further, since the protrusion 41 is softer than the protrusion 56, the click sound can be made heavy while reducing (relaxing) the click sound of the generated click feeling. Therefore, it is possible to make the click sound high-value-added and high-value-added, and to produce a high-quality click feeling.

  As mentioned above, although preferred embodiment of this invention was described, the delivery container which concerns on this invention is not restricted to the said embodiment, It deform | transforms in the range which does not change the summary described in each claim, or other It may be applied to a thing.

  For example, in the above embodiment, when the main body cylinder 2 and the operation cylinder 3 are relatively rotated, the pipe member 10 is applied to the front cylinder 1 by the screwing action of the first and second screwing portions 8 and 9. M is moved with M, the screwing action of the first screwing part 8 is released or stopped, and the pipe member 10 is continuously moved together with the coating material M only by the screwing action of the second screwing part 9, and the pipe The forward movement of the member 10 is stopped, and then the coating material M is moved relative to the pipe member 10 only by the screwing action of the second screwing part 9. The release timing or stop timing is not limited to this.

  Specifically, after the pipe member 10 moves together with the coating material M with respect to the front tube 1 by the screwing action of the first and second screwing portions 8 and 9, the movement of the pipe member 10 is stopped, and then The application material M may advance with respect to the pipe member 10 only by the screwing action of the second screwing part 9 when the screwing action of the first screwing part 8 is released or stopped.

  Moreover, in the said embodiment, although the rotational type by the 1st and 2nd screwing parts 8 and 9 is employ | adopted as a feeding mechanism, it is not limited to this, For example, mechanical extrusion mechanisms, such as a knock type It is also possible to employ a squeeze-type extrusion mechanism. Further, the male screw and the female screw described above are not only a screw thread or a screw groove, but also a thread group or a screw groove such as an intermittently arranged protrusion group or a spiral and intermittently disposed protrusion group. It may be one that performs a similar function.

  Further, in the spring member 10 of the above-described embodiment, the pipe member 10 is always positioned at the forward limit before the coating material M is loaded, and the pipe member 10 moves forward and backward as the piston 7 moves forward and backward after the coating material M is loaded. As described above, the pipe member 10 is urged forward by the predetermined urging force Fs based on the above formula (1), but is not limited thereto. For example, as the spring member 10, various members can be used as long as they are elastic members that can bias the pipe member 10 forward. Further, if the pipe member 10 urged forward by the spring member 14 is always positioned at the forward limit before the coating material M is loaded and can be advanced and retracted with the advancement and retraction of the piston 7 after loading the coating material M, the other configuration can be achieved. It may be adopted.

  Further, as the coating material M, for example, lip gloss, lip, eye color, eyeliner, cosmetic liquid, cleaning liquid, nail enamel, nail care solution, nail remover, mascara, anti-aging, hair color, hair cosmetics, oral care, Also for dispensing containers using liquid coating materials such as massage oil, square plug loosening liquid, foundation, concealer, skin cream, ink for writing instruments such as marking pens, liquid medicine, mud etc. Of course, it is applicable.

  In the above, “releasing the screwing action” means that the threads of the male screw and the female screw (projections 41, 56) are disengaged, and the screwing action does not work. The “stop of the screwing action” means that the screw threads (the protrusions 41 and 56) of the male screw and the female screw are engaged and engaged with each other, and the screwing does not work.

  DESCRIPTION OF SYMBOLS 1 ... Lead cylinder (container, container front part), 1a ... Discharge port, 2 ... Main body cylinder (container, container front part), 3 ... Operation cylinder (container, container rear part), 6 ... Moving body (moving part), 7 ... Piston (moving part), 8 ... first screwing part (feeding mechanism, click mechanism), 9 ... second screwing part (feeding mechanism), 10 ... pipe member, 14 ... spring member (elastic member), 41, 56 ... protrusions (click protrusions), 100 ... feeding container, M ... coating material.

Claims (5)

A feeding container and a moving part are provided in the container, the moving part is moved by the feeding mechanism, and the feeding material is fed forward.
The container has a container front portion and a container rear portion that are rotatable relative to each other,
The feeding mechanism moves the moving part by relative rotation between the container front part and the container rear part,
A tip tube comprising the container and having a discharge port at the tip;
A pipe member that is slidably inserted in the front-rear direction with respect to the front tube and in which the coating material is loaded;
An elastic member provided in the container and biasing the pipe member forward with a predetermined biasing force ;
A click mechanism that generates a click feeling with relative rotation between the container front and the container rear,
The click mechanism has a pair of click protrusions, and generates the click feeling by engaging and disengaging the pair of click protrusions,
The feeding container , wherein the elastic member biases the click mechanism so that the pair of click protrusions engage with each other .   The pipe member urged forward by the predetermined urging force is not retractable from a predetermined position before the coating material is loaded, and the moving portion is advanced after the coating material is loaded. The feeding container according to claim 1, wherein the feeding container is capable of advancing and retreating with respect to the front tube as the vehicle moves backward. The mobile unit includes a piston sliding said pipe member is configured to include transfer and body, and
The piston and the moving body are engaged with each other so as to be relatively movable in a certain amount in the axial direction.
Prior to loading of the coating material, the piston is urged forward as the pipe member is urged forward by the elastic member by a first sliding resistance force between the pipe member and the piston. The feeding container according to claim 1 or 2, wherein   The predetermined biasing force is greater than the sum of the first sliding resistance force between the pipe member and the piston and the second sliding resistance force between the pipe member and the coating material after the coating material is loaded. The feeding container according to claim 3, wherein the feeding container is small. The feeding mechanism is, when the container front and said container rear portion are relatively rotated in one direction to move the moving unit by the meshing operation of the first and second engagement portion, further in the one direction When the relative rotation is performed, the screwing action of the first screwing part is released, and the moving part is continuously moved only by the screwing action of the second screwing part ,
The feeding container according to any one of claims 1 to 4 , wherein the elastic member biases the first screwing portion released from the screwing action so as to return the screwing.