JP5160402B2 - Cartridge replaceable feeding container - Google Patents

Description

  The present invention relates to a container for delivering a filling material such as solid paste, crayon, lipstick, lip balm, etc., and a cartridge exchange-type delivery container in which a cartridge can be easily exchanged and, therefore, reuse of a main body part is easy. .

There has already been proposed a cartridge exchange-type delivery container for delivering an object to be filled such as solid paste and capable of exchanging the cartridge. For example, Japanese Patent Application Laid-Open No. 2005-111782 proposes a replaceable feeding container that can replace solid glue contained in a cartridge from the top of the main body container.
JP 2005-111782 A

  However, in the invention described in Japanese Patent Application Laid-Open No. 2005-111782, when the cartridge is attached to the main body container, it is necessary to firmly fit the fitting portions of the two with a finger or the like. This operation is not easy. Further, since the solid glue is exposed, the solid glue adheres to the fingers, palms, etc. during the attaching / detaching operation.

  In addition, since the exchangeable delivery container repeatedly reuses the main body portion, the main body portion is required to have durability and impact resistance. However, in the conventional technique, almost all the parts are molded from plastic resin. In particular, regarding the structure for attaching and detaching the cartridge from the main body container, durability and impact resistance are not sufficiently considered in the conventional exchangeable delivery container. Specifically, in the attachment / detachment structure formed of plastic resin, there is a problem that “rabbit” occurs in only a few attachment / detachment operations.

  The present invention has been made to solve such a problem, and provides a cartridge exchange-type feeding container which can easily exchange a cartridge any number of times and can remarkably increase the number of repeated use of a main body portion. For the purpose.

The present invention includes an inner tray that is filled or loaded with an object and has a cylindrical hole, and a spiral ridge shaft that supports the cylindrical hole so as to move up and down by relative rotation with respect to the intermediate dish, A cartridge having an inner cylinder and an inner cylinder surrounding the outer periphery of the spiral protrusion shaft;
An outer cylinder capable of accommodating the cartridge;
A rotary knob rotatably attached to the outer cylinder;
A tail plug attached to the rotary knob via a metal coil spring to detachably engage the spiral protrusion shaft and the rotary knob;
With
The helical ridge shaft and the tail plug can be engaged with each other such that a rotational force can be transmitted in the rotational direction of the rotary knob and a sliding movement can be performed in the vertical direction. And
The cartridge-replaceable feeding container characterized in that the tail plug can be detached from the spiral protrusion shaft by utilizing the vertical displacement and restoring force of the coil spring from the meshing state. It is.

  According to the present invention, when the spiral protrusion shaft (cartridge) is detached from the tail plug (main body), the vertical displacement (deformation) of the coil spring is used. As a result, the pressing force of the tail plug during the cartridge detachment operation is buffered by the displacement of the coil spring, and various problems due to the excessively strong pressing force are effectively prevented. Thereby, the remarkably outstanding effect is acquired in durability and impact resistance of a main body. Further, when the spiral protrusion shaft (cartridge) is detached from the tail plug (main body), the restoring force of the coil spring is used. That is, after the tail plug pressing operation, the tail plug is returned to the original position by the restoring force of the coil spring, so that the spiral protrusion shaft (cartridge) and the tail plug (main body) can be easily detached. The most important thing in the present invention is that the displacement and the restoring force are provided by a metal coil spring, so that the number of cartridge mounting / demounting operations can be significantly increased. This effect is extremely important.

  In the present invention, for example, the cylindrical hole is a spiral grooved cylindrical hole, and the spiral ridge shaft is movably screwed to the spirally grooved cylindrical hole of the inner plate.

  In the present invention, for example, the spiral ridge shaft has a flat surface portion that defines a moving lower end portion of the inner plate, and the middle cylinder has a lower end of an outer peripheral side portion of the spiral ridge shaft. A vent hole for densely filling an object to be filled in the flat portion of the inner dish, the flat portion of the spiral protrusion shaft, and the flat portion of the inner cylinder. Is provided at a position matching the vertical direction.

  In the present invention, for example, the metal coil spring is made of stainless steel.

  FIG. 1 shows a schematic cross-sectional view of an embodiment of a cartridge exchange type feeding container according to the present invention.

  This cartridge exchange-type delivery container can exchange the cartridge with respect to the main body. As shown in FIG. 1, the cartridge includes a middle dish 1, a spiral protrusion shaft 2, a middle cylinder 3, and a cap 4. On the other hand, the main body has an outer cylinder 5, a rotary knob 6, a tail plug 7, and a metal coil spring 8.

  FIG. 2A is a schematic cross-sectional view of the intermediate dish 1, and FIG. 2B is a schematic plan view of the intermediate dish 1.

  As shown in FIG. 2A, the inner tray 1 has a spiral grooved cylindrical hole 1 a for screwing at substantially the center thereof. The spiral grooved cylindrical hole 1a is screwed into a spiral protrusion 2a of a spiral protrusion shaft 2 (described later) so as to be relatively rotatable (movable).

  In FIG. 2B, a guide groove 1b provided on the outer periphery of the inner tray 1 is guided along a guide protrusion 3g extending in the vertical direction of the middle cylinder 3 described later. Thereby, the inner tray 1 is guided in the vertical direction, that is, can be moved up and down. That is, the inner tray 1 containing the filling object can be moved up and down depending on the rotation of the spiral projection shaft 2 by utilizing the screwed relationship with the spiral projection shaft 2.

  Moreover, as shown to FIG. 2A, the hole 1c for ventilation | gas_flowing for filling the to-be-filled material densely is opened in the lower end plane part of the inner tray 1. As shown in FIG. Furthermore, a weir 1 d for preventing “filling out” of an object to be filled (filled or loaded) in the inner tray 1 is provided on the inner wall of the inner tray 1 in a circular manner.

  Next, FIG. 3 shows a schematic cross-sectional view of the spiral ridge shaft 2.

  As shown in FIG. 3, the spiral protrusion shaft 2 is provided with a spiral protrusion 2a for screwing. The spiral protrusion 2a is screwed into the spiral grooved cylindrical hole 1a of the inner tray 1 so as to be relatively rotatable.

  Moreover, the hole for the tail plug 7 mentioned later to be fitted in the lower end part of the spiral protrusion shaft 2 is provided. Specifically, an internal gear-like uneven portion (uneven pattern) 2b is provided in the hole, and this uneven portion 2b is a small-diameter spur gear-like shape provided at the top of the tail plug 7 described later. It engages with the concavo-convex portion 7a. That is, the concavo-convex portion 2b of the spiral protrusion shaft 2 and the concavo-convex portion 7a of the tail plug 7 can transmit rotational force in the rotational direction of the rotary knob 6 and slide and move in the vertical direction (insertion and detachment). The meshing state that it is possible can be taken.

  Further, an inner cylinder fitting recess 2 c is formed on the outer periphery of the lower end portion of the spiral protrusion shaft 2. The middle cylinder fitting recess 2c is fitted to a fitting projection 3a provided on the inner periphery of the lower end portion of the middle cylinder 3 (described later) so as to be relatively rotatable (positioning in the vertical direction).

  As shown in FIG. 3, the spiral protrusion shaft 2 has a flat surface portion that defines the moving lower end portion of the inner dish 1, and ventilation for filling the flat portion with the object to be filled densely. A hole 2d is provided.

  Further, a concave portion 2e is formed in a circular shape on the outer periphery of the large-diameter cylindrical portion extended in the vertical direction from the outer peripheral edge of the flat portion of the spiral protrusion shaft 2. The concave portion 2e is fitted so as to be relatively rotatable (positioning in the vertical direction) with a fitting convex portion 3b provided in a circular shape inside an inner cylinder 3 to be described later.

  Next, FIG. 4 shows a schematic cross-sectional view of the middle cylinder 3.

  As described above, the fitting convex portion 3a provided on the inner peripheral wall of the lower diameter side small diameter portion of the middle cylinder 3 is fitted to the middle cylinder fitting concave portion 2c of the spiral protrusion shaft 2 so as to be relatively rotatable. ing. Further, the fitting convex portion 3b provided on the inner peripheral wall of the large-diameter portion of the middle cylinder 3 is fitted to the concave portion 2e of the spiral protrusion shaft 2 so as to be relatively rotatable.

  Moreover, the guide protrusion 3g extended in an up-down direction is provided so that the guide groove 1b of the inner tray 1 may be guided up and down. Thereby, the inner tray 1 can be moved up and down in the vertical direction.

  Moreover, as shown in FIG. 4, the convex part 3c for a fitting is formed in the lower end part of the small diameter part of the lower end side of the middle cylinder 3 at the periphery. The fitting projection 3c is detachably fitted to a circumferential fitting inner wall 6a provided on the inner side of an inner frame 6i of the rotary knob 6 described later.

  Further, as shown in FIG. 4, an uneven portion for cap 3 d is formed in a circular shape outside the upper end portion of the large-diameter portion of the middle cylinder 3. The cap concavo-convex portion 3d is detachably fitted to a circular protrusion 4a of the cap 4 described later.

  Further, as shown in FIG. 4, the middle cylinder 3 has a flat portion surrounding the lower end of the outer peripheral side portion of the spiral ridge shaft 2, so that the filling object can be densely filled in the flat portion. The vent hole 3e is opened.

  In addition, as shown in FIG. 4, a vertical knurl 3 f is provided on the outer periphery of the lower portion of the large-diameter portion of the middle cylinder 3, and is provided inside the lower portion of the large-diameter portion of the outer cylinder 5 described later. It meshes with the vertical knurl 5a. Thereby, idle rotation between the middle cylinder 3 and the outer cylinder 5 is effectively prevented.

  Next, FIG. 5 shows a schematic cross-sectional view of the cap 4.

  As described above, the circumferential protrusion 4a provided on the inner peripheral wall of the cap 4 is detachably fitted to the cap uneven portion 3d of the middle cylinder 3. On the inner peripheral wall of the cap 4, air venting convex portions 4 b are further provided at several locations at equal intervals in the circumferential direction. This air vent convex part 4b allows the passage of air during the opening and closing operation of the cap 4 in a region adjacent to the air releasing convex part 4b, thereby facilitating the opening and closing operation of the cap 4 (preventing generation of undesired air pressure). To work.

  Further, as shown in FIG. 5, a protrusion 4 c is provided on the outer periphery of the cap 4. The protrusion 4c functions as a stopper for preventing excessive rolling when the container is laid down.

  Further, on the outer periphery of the cap 4, a weir 4 d is provided for facilitating the attachment / detachment operation with the middle cylinder 3.

  Next, FIG. 6 shows a schematic cross-sectional view of the outer cylinder 5.

  As described above, the vertical knurl 5 a provided inside the lower portion of the large-diameter portion of the outer cylinder 5 is engaged with the vertical knurl 3 f of the middle cylinder 3. Thereby, idle rotation between the middle cylinder 3 and the outer cylinder 5 is effectively prevented.

  Moreover, as shown in FIG. 6, the fitting uneven | corrugated | grooved part 5b is formed in the outer periphery of the lower end side small diameter part of the outer cylinder 5 in the periphery shape. The concave / convex portion 5b for fitting is fitted so as to be relatively rotatable with the concave / convex portion for fitting 6b provided in a circular shape inside an outer frame 6e of the rotary knob 6 described later.

  Next, FIG. 7 shows a schematic sectional view of the rotary knob 6. The rotary knob 6 has an outer frame 6e and a center frame 6m for sandwiching the outer frame 5, and an inner frame 6i for fitting with the middle cylinder 3.

  As described above, the inner wall 6a for fitting inside the inner frame 6i of the rotary knob 6 is detachably engaged with the fitting convex portion 3c of the middle cylinder 3, so The fitting uneven portion 6b provided inside the frame 6e is fitted to the fitting uneven portion 5b of the outer cylinder 5 so as to be relatively rotatable.

  Further, as shown in FIG. 7, locking recesses 6 c are provided at four locations at regular intervals in the circumferential direction from the substantially inner center to the lower end of the center frame 6 m of the rotary knob 6. The locking recess 6c fits with a locking projection 7b provided on the outer side of an outer frame 7e of the tail plug 7, which will be described later, and guides the vertical movement of the locking projection 7b. It is like that.

  Next, FIG. 8 shows a schematic cross-sectional view of the tail plug 7.

  As described above, the small-diameter spur gear-shaped uneven portion 7 a provided on the central shaft of the tail plug 7 and the uneven portion 2 b of the spiral protrusion shaft 2 mesh so that the rotational force of the rotary knob 6 can be transmitted. It is possible. Further, the locking projections 7b provided at four positions on the outer side of the outer frame 7e of the tail plug 7 at equal intervals in the circumferential direction are fitted with the locking recesses 6c of the rotary knob 6. In the fitted state, the movement in the vertical direction is guided by the locking recess 6c.

  In FIG. 8, an inner frame 7i provided between the central shaft of the tail plug 7 and the outer frame 7e is the bottom end of the bottom end of the middle cylinder 3 when the bottom 7d of the tail plug 7 is pressed with a finger or the like. Functions to push up and release the cartridge from the body. A metal coil spring 8 is mounted in a space 7 s between the central shaft of the tail plug 7 and the inner frame 7 i. FIG. 9 shows a schematic side view of the metal coil spring 8.

  In addition, ventilation holes 1c, 2d, and 3e provided in each of the flat portion of the inner dish 1, the flat portion of the spiral protrusion shaft 2, and the flat portion of the inner cylinder 3 are used to densely pack the filling object. For the convenience of the filling operation, it is provided at a position that is aligned (aligned) in the vertical direction.

  Next, the cartridge exchange operation in the cartridge exchange-type delivery container of the present embodiment composed of the above-described elements will be described from the state shown in FIG.

  When removing the cartridge, the user pushes the tail plug 7 into the cartridge side with a finger or the like. Thereby, the top end of the inner frame 7 i of the tail plug 7 pushes up the bottom end of the bottom end of the middle cylinder 3 while the coil spring 8 is compressed and deformed.

  The pushing operation of the tail plug 7 is continued until the movement limit of the tail plug 7 defined by the locking projection 7b and the locking recess 6c. It may be continued up to the compression limit of the coil spring 8. During this pushing process, the engagement between the fitting convex portion 3c of the middle cylinder 3 and the fitting inner wall 6a of the rotary knob 6 is released.

  After the tail plug 7 reaches its travel limit, the user releases the pushing force on the tail plug 7. Thereby, the coil spring 8 returns from the deformed state to the original state, and the tail plug 7 returns to the original position. On the other hand, the middle cylinder 3 remains pushed up. Thereafter, the cartridge can be easily removed by pulling the middle cylinder 3 (cartridge) further upward.

  When installing a new cartridge, the user pushes the inner cylinder 3 (cartridge) into the outer cylinder 5 with a finger or the like. At this time, the outer cylinder 5 serves as a guide, and the fitting convex portion 3 c of the middle cylinder 3 can be correctly engaged with the fitting inner wall 6 a of the rotary knob 6.

  According to the present embodiment as described above, since the vertical displacement (deformation) of the coil spring 8 is used when the cartridge is detached from the main body, the pressing force of the tail plug 7 during the cartridge removal operation is reduced. It is buffered by the displacement of the coil spring 8. As a result, the occurrence of various problems due to excessively strong pressing force is effectively prevented, and a remarkable effect can be obtained in the durability and impact resistance of the main body.

  Further, when the cartridge is detached from the main body, the restoring force of the coil spring 8 is used. That is, after the pressing operation of the tail plug 7, the tail plug 7 returns to the original position by the restoring force of the coil spring 8. Thereby, the cartridge and the main body can be easily detached.

  Further, since the displacement (deformation) and restoring force as described above are provided by the metal coil spring 8, the durability and impact resistance are improved, and the number of times of mounting and demounting operations of the cartridge is remarkably increased. it can. This effect is extremely important.

  The cap 4 may be integrated with the inner cylinder 3 as in the above embodiment, but may be detachably attached to the outer cylinder 5. If the system is integrated with the inner cylinder 3, a seal or the like for protecting the filling object in the cartridge is not necessary. On the other hand, if the system is integrated with the outer cylinder 5, the cap 4 can be reused as a part of the main body.

It is a schematic sectional drawing which shows one Embodiment of the cartridge exchange-type delivery container by this invention. FIG. 2 is a schematic cross-sectional view of a middle dish of the cartridge exchange-type feeding container of FIG. 1. FIG. 2 is a schematic plan view of a middle dish of the cartridge exchange-type feeding container of FIG. 1. The schematic sectional drawing of the spiral protrusion axis | shaft of the cartridge exchange-type delivery container of FIG. FIG. 2 is a schematic cross-sectional view of a middle cylinder of the cartridge exchange-type feeding container in FIG. 1. FIG. 2 is a schematic cross-sectional view of a cap of the cartridge exchange-type feeding container in FIG. 1. FIG. 2 is a schematic cross-sectional view of an outer cylinder of the cartridge exchange type feeding container of FIG. 1. FIG. 2 is a schematic cross-sectional view of a rotary knob of the cartridge exchange type feeding container of FIG. 1. FIG. 2 is a schematic cross-sectional view of a tail plug of the cartridge exchange type feeding container of FIG. 1. FIG. 2 is a schematic side view of a metal coil spring of the cartridge exchange-type feeding container of FIG. 1.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Medium dish 1a Spiral groove shaft hole 1b Guide groove 1c Ventilation hole 1d Weir 2 Spiral ridge shaft 2a Spiral ridge 2b Uneven portion 2c Middle cylinder fitting recess 2d Vent hole 2e Depression 3 Middle cylinder 3a For fitting Convex portion 3b Fitting convex portion 3c Fitting convex portion 3d Cap concave / convex portion 3e Ventilation hole 3f Vertical knurl 3g Guide ridge 4 Cap 4a ridge 4b Air vent convex portion 4c Protrusion 4d Weir 5 Outer cylinder 5a Vertical knurl 5b Fitting uneven portion 6 Rotating knob 6i Inner frame 6e Outer frame 6m Center frame 6a Fitting inner wall 6b Fitting uneven portion 6c Locking recess 7 Tail plug 7i Inner frame 7e Outer frame 7a Uneven portion 7b Locking protrusion 7d Bottom 7s Space between the central axis of the tail plug and the inner frame 8 Metal coil spring

Claims (4)

An intermediate tray that is filled or loaded with a cylindrical hole and has a cylindrical hole, a spiral protrusion shaft that supports the cylindrical hole so as to move up and down by relative rotation with respect to the intermediate tray, the intermediate tray, and A cartridge having an inner cylinder surrounding the outer periphery of the spiral protrusion shaft; and an outer cylinder capable of accommodating the cartridge;
A rotary knob rotatably attached to the outer cylinder;
A tail plug attached to the rotary knob via a metal coil spring to detachably engage the spiral protrusion shaft and the rotary knob;
With
The helical ridge shaft and the tail plug can be engaged with each other such that a rotational force can be transmitted in the rotational direction of the rotary knob and a sliding movement can be performed in the vertical direction. And
The cartridge-replaceable feeding container characterized in that the tail plug can be detached from the spiral protrusion shaft by utilizing the vertical displacement and restoring force of the coil spring from the meshing state. . The cylindrical hole is a cylindrical groove with a spiral groove,
2. The cartridge-exchangeable feeding container according to claim 1, wherein the spiral protrusion shaft is movably screwed to a spiral grooved cylindrical hole of the inner plate. The spiral ridge shaft has a flat surface portion that defines a moving lower end portion of the inner dish,
The middle cylinder has a flat surface portion surrounding the lower end of the outer peripheral side portion of the spiral protrusion shaft,
In the flat part of the inner plate, the flat part of the spiral ridge shaft, and the flat part of the inner cylinder, vent holes for densely filling an object to be filled are provided at positions corresponding to the vertical direction. The cartridge exchange-type delivery container according to claim 1, wherein the cartridge exchange-type delivery container is provided. The cartridge-replaceable feeding container according to any one of claims 1 to 3, wherein the metal coil spring is made of stainless steel.

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