JP7271900B2 - glue stick container - Google Patents

Description

TECHNICAL FIELD The present invention relates to a glue stick container filled with stick-shaped glue.

2. Description of the Related Art A stick paste is well known, which is a long and narrow container containing a solid paste used for pasting or adhering paper or the like, and which can be delivered little by little.

Conventional glue sticks have a cylindrical glue coming out of a circular glue outlet opened at the tip of the container. With such a stick glue, for example, when applying glue around a square-shaped paper, it is not easy to apply the glue neatly to the edges and corners of the paper so as not to protrude. Therefore, a glue stick has been developed in which a square prism-shaped glue emerges from a square-shaped glue outlet opened at the tip of the container (see, for example, Patent Document 1 below).

When the glue stick is not used, the glue outlet is covered by attaching a cap fitted to the tip of the container from the outside. When the user attaches and detaches the cap, the edge of the peripheral wall of the cap comes into contact with the paste in such a way as to scrape off the paste, and the paste may adhere to the periphery of the end of the cap. If so, there is a risk that the adhered glue residue will stain the user's fingers, paper, and other surrounding objects.

Japanese Patent No. 5928663

SUMMARY OF THE INVENTION An object of the present invention is to provide a glue stick container in which the problem of staining the user's fingers and surrounding objects with glue residue adhering to the periphery of the end of the cap is improved.

In the present invention, a container body having a glue filling space in which glue is filled and a non-circular glue outlet at the tip for discharging the glue to the outside, and a glue filling space of the container body. A glue stick container comprising an opening/closing mechanism that can selectively assume either a closed state that airtightly blocks communication with the outside or an open state that allows the glue to be led out to the outside, wherein the opening/closing mechanism comprises: A cylindrical or substantially cylindrical cap mounting tube provided on the container body, and a cap having a cylindrical or substantially cylindrical open end detachably fitted inside the cap mounting tube, The end portion of the cap attached in the closed state is covered from the outside by the cap attachment cylinder, and the cap shields the glue outlet from the outside, and the outer circumference of the cap and the inner circumference of the cap attachment cylinder are tightly fitted. A circular rib protruding inward from the inner peripheral surface is formed on the inner peripheral surface of the cap mounting cylinder that covers the cap, and the rib is formed on the cylindrical or substantially cylindrical shape of the cap. The cylindrical or substantially cylindrical outer peripheral surface of the cap that is in close contact with a predetermined portion of the outer peripheral surface and/or is covered with the cap mounting cylinder has a circular shape protruding outward along the radial direction from the outer peripheral surface. A shaped rib is formed, and the rib is brought into close contact with a predetermined portion of the cylindrical or substantially cylindrical inner peripheral surface of the cap attachment cylinder, thereby constituting a glue stick container.

In order to further improve the airtightness in the closed state in which the cap is attached to the container body when the glue stick is not used, the cap is attached to the circular fitting portion inside the cap attachment tube in the closed state. It is preferable to adopt a structure in which the cap mounting cylinder is fitted or fitted into a circular fitting portion on the outside of the cap. Here, the term "circular shape" includes not only a perfect circle with a constant distance from the center, but also an ellipse that is close to a perfect circle, and a shape with an error whose distance from the center is not completely constant. It is a concept.

As a specific mode, the cap mounting cylinder is formed with a circular rib that protrudes inward from the inner peripheral surface thereof as the fitting portion, or the cap has a rib that protrudes outward from the outer peripheral surface thereof. It is assumed that it is formed as the fitting portion.

If the cap mounting cylinder and the cap are cylindrical, molding including the fitting portion becomes easier.

The cap attachment tube and the cap are, for example, molded resin products.

According to the present invention, it is possible to realize a glue stick container that is capable of solving the problem that the glue residue adhering to the outer circumference of the end of the cap stains the user's fingers and surrounding objects.

1 is a perspective view of a glue stick and its container according to one embodiment of the present invention; FIG. The perspective view which expands and shows the stick glue of the same embodiment, and the principal part of the container. The perspective view which fractures|ruptures the container of the stick glue of the same embodiment, and expands and shows a principal part. The perspective view which fractures and shows the container of the stick glue of the same embodiment. FIG. 3 is an exploded perspective view of the glue stick container of the same embodiment. FIG. 4 is a longitudinal sectional view showing an enlarged main part of the glue stick container of the same embodiment. FIG. 2 is an end view of the glue stick container of the same embodiment taken along the line AA. FIG. 4 is an end view of the glue stick container of the same embodiment taken along the line BB. FIG. 4 is a longitudinal sectional view showing an enlarged main part of a glue stick container according to one modification of the present invention.

One embodiment of the present invention will be described with reference to the drawings. 1 to 8 show a glue stick 1 and its container 2 of this embodiment. The glue stick 1 is formed by filling or containing a solid stick-shaped glue 3 in a container 2, and the glue 3 can be fed little by little from a glue outlet of the container 2 for use. The container 2 of the glue stick 1 of this embodiment has a glue filling space 41 in which the glue 3 is filled, and the tip (or the front end, the top end, or the upper end) of the container 2 does not have a perfect circle for leading out the glue 3 to the outside. The container main body 4 having the glue outlet 42 and the glue filled space 41 of the container main body 4 can selectively take a closed state in which communication with the outside is blocked and an open state in which the glue 3 can be drawn out to the outside. An opening/closing mechanism 5 and a glue push-out mechanism 6 for gradually drawing out the glue 3 from the glue outlet 42 are provided.

As shown in FIGS. 3 to 8, the container main body 4 includes a glue filling portion 43, which is a tubular body having a glue outlet 42 at its tip that encloses a glue filling space 41 and communicates the glue filling space 41 with the outside. , and a body 44 surrounding the outside of the glue filling portion 43 and having a grip portion 441 for a user to grip. In this embodiment, the glue filling portion 43 and the body 44 are integrally formed of synthetic resin or hard resin, for example. However, in the case of a refill type glue stick 1 in which new glue 3 can be loaded after the glue 3 is consumed, the glue filling section 43 is used as (at least a part of) a replacement refill for the body 44. You can put it on and take it off.

The paste 3 in this embodiment has a prism shape, particularly a quadrangular prism shape. Accordingly, the inner peripheral surface 431 of the glue filling portion 43 reaching the glue outlet 42 is formed in a square tube shape, particularly a square tube shape, so as to match the outer peripheral shape of the glue 3 . A rail 433, which will be described later, protrudes from the inner peripheral surface 431. As shown in FIG. A cylindrical portion 432 at the tip of the glue filling portion 43 protrudes further than the tip of the body 44, and the glue outlet 42 is opened at the tip.

The body 44 holds the portion other than the tip cylindrical portion 432 of the glue filling portion 43, and its outer circumference 441 is a rectangular tube whose outer circumference 441 is similar to the shape of the outer circumference of the glue 3 or the shape of the inner circumference 431 of the glue filling portion 43. shape, especially a square cylinder. In other words, as shown in FIGS. 7 and 8, in a cross-sectional view taken along a plane perpendicular to the axis parallel to the direction in which the glue 3 and the container 2 extend, the four sides 442, which are the outer sides of the body 44, It is parallel or substantially parallel to the four sides 421 that are the inner sides of the glue filling portion 43 and the glue outlet 42 (and the outer sides of the glue 3). Of course, the corners of the outer periphery 441 of the body 44, that is, the four corners where the sides 442 intersect are chamfered. The outer periphery 441 of the body 44 functions as a gripping portion that can be gripped by the user who intends to apply the glue 3 using the glue stick 1 .

A bottom wall 45 that closes the glue filling space 41 from the base end side is formed integrally with the base end (or rear end, bottom end, or lower end) of the glue filling portion 43 and the body 44 . A shaft hole 451 penetrating through the bottom wall 45 is drilled in the center of the bottom wall 45 . The shaft hole 451 is related to the glue pushing mechanism 6 which will be described later.

The opening/closing mechanism 5 for the container 2 of the glue stick 1 of the present embodiment is attached to the container main body 4 by fitting a cap mounting cylinder 51 provided on the tip side of the container main body 4 to the inside of the cap mounting cylinder 51 . and a cap 52 that covers the glue outlet 42.

The cap attachment tube 51 is a relatively thin and short tubular body having circular inner and outer peripheral surfaces 511 and 514 . The cap attachment cylinder 51 surrounds the outer circumference 434 of the container body 4 via a gap 516 and is joined to the outer circumferences 434 and 441 of the container body 4 via a connection portion 515 projecting inward along the radial direction. there is More specifically, the connection portion 515 is formed at a portion of the cap attachment tube 51 on the base end side of the container 2 and a portion near the base end of the tip of the body 44 or the tip cylindrical portion 432 of the glue filling portion 43 . are connected. In this embodiment, the cap attachment tube 51 and the body 44 are integrally formed of synthetic resin or hard resin, for example. At the same time, the cap attachment tube 51 is integrated with (the tip cylindrical portion 432 of) the glue filling section 43, but in the refill type glue stick 1 as already described, the glue filling section 43 and the cap attachment tube are integrated. 51 may be separated.

The cap mounting cylinder 51 extends from the connecting portion 515 in parallel or substantially parallel to the axis in the distal direction of the container 2 , and the inner peripheral surface 511 of the cap mounting cylinder 51 extends along the outer periphery of the distal end tubular portion 432 of the container main body 4 via a gap 516 . It faces the face 434 . In other words, the gap 516 interposed between the inner periphery 511 of the cap attachment tube 51 and the outer periphery 434 of the distal cylindrical portion 432 of the container body 4 opens toward the distal end of the container 2 . The cap attachment cylinder 51 is biased closer to the base end side of the container 2 than the glue outlet 42 of the container main body 4 . That is, the glue outlet 42 is located ahead of the tip of the cap attachment tube 51 .

The base end portion of the cap attachment tube 51 is connected to the outer periphery 441 of the container body 4 by a connecting portion 515, and the connecting portion 515 closes the gap 516 from the base end side. Therefore, the gap 516 is not open in the proximal direction of the container 2 . The proximal end of the cap attachment tube 51 faces the distal end region of the grip portion 441 that can be touched by the tip of the thumb or index finger of the user who grips the container body 4 and applies the paste 3 .

The cap 52 has a hollow cylindrical peripheral wall 521 with a top plate 524 closing the tip end of the peripheral wall 521 . In this way, it can be detachably attached to the cap attachment cylinder 51 . The cap 52 is integrally formed of synthetic resin or hard resin, for example.

When the glue stick 1 is not used, as shown in FIGS. The tip cylindrical portion 432 of the container body 4 and the glue outlet 42 are accommodated in the container body 4 and covered with the cap 52 to form a closed state in which they are shielded from the outside. When using the glue stick 1, as shown in FIGS. 2 and 3, the cap 52 is detached from the cap mounting tube 51, and the tip cylindrical portion 432 of the container body 4 and the glue outlet 42 are exposed. It goes without saying that The outer peripheral edge of the top plate 524 slightly protrudes outward from the outer periphery of the peripheral wall 521 along the radial direction.

The cap attachment cylinder 51 has a circular fitting portion 512 on its inner periphery 511 when viewed from the axial direction. More specifically, a rib 512 protruding inward along the radial direction from a predetermined portion of the cylindrical or substantially cylindrical inner peripheral surface 511 and continuing along the circumferential direction is formed. The fitting portion 512 is closely fitted to the circular outer periphery 522 of the cap 52 by closely contacting a predetermined portion of the cylindrical or substantially cylindrical outer peripheral surface 522 of the cap 52 as the fitting portion. The outer edge of the cross section of the rib 512 forms an arc shape or an elliptical arc shape in a longitudinal cross-sectional view taken along a plane overlapping an axis parallel to the direction in which the paste 3 and the container 2 extend.

The cap 52 also has a circular fit 523 on its outer periphery 522 when viewed in the axial direction. More specifically, a rib 523 is formed that protrudes outward along the radial direction from a predetermined portion of the cylindrical or substantially cylindrical outer peripheral surface 522 and continues along the circumferential direction. The fitting portion 523 is closely fitted to the circular inner circumference 511 of the cap mounting cylinder 51 by closely contacting a predetermined portion of the cylindrical or substantially cylindrical inner circumferential surface 511 of the cap mounting cylinder 51 as a joint portion. do. The outer edge of the cross section of the rib 523 has an arc shape or an elliptical arc shape when viewed in vertical cross section.

In the closed state shown in FIGS. 1, 4, 6 to 8, the rib 523 of the cap 52 is positioned closer to the proximal end of the container 2 than the rib 512 of the cap mounting cylinder 51 is. That is, in the process of attaching the cap 52 to the cap attachment tube 51, the rib 523 of the cap 52 is displaced relative to the cap attachment tube 51 from the distal end side to the proximal end side of the container 2, and the cap attachment tube 51 or The rib 512 of the cap attachment tube 51 is overcome while the cap 52 is elastically deformed. The glue outlet 42 of the container body 4 is arranged ahead of the ribs 512 and 523 and the tip of the cap attachment cylinder 51 .

In the closed state in which the cap 52 is attached to the container body 4 , the opening edge of the peripheral wall 521 of the cap 52 and the end portion close thereto are positioned in the gap 516 inside the cap attachment tube 51 , that is, the cap attachment tube 51 and the container body 4 . It fits within the gap 516 between (the glue outlet 43). At this time, the outer peripheral surface 522 of the end portion of the peripheral wall 521 of the cap 52 abuts or is extremely close to the inner peripheral surface 511 of the cap mounting cylinder 51 , and the end surface 525 of the peripheral wall 521 of the cap 52 contacts the container 2 at the connecting portion 515 . It abuts or comes very close to the surface 513 facing the distal direction. The opening edge of the peripheral wall 521 of the cap 52 and the end near it are hidden from the outside by the cap mounting tube 51 and are hidden from the base end of the container 2 by the connecting portion 515 . As a result, even if the residue of the paste 3 adheres to the outer peripheral surface 522 or the end face 525 of the peripheral wall 521 of the cap 52, the residue of the paste 3 is prevented from staining the user's fingers, paper, and other objects. be.

As shown in FIGS. 3 to 5, the glue pushing mechanism 6 includes a threaded rod 61 inserted through a shaft hole 451 of the bottom wall 45 of the container body 4 and entering the glue filling space 41 in the glue filling portion 43, It has a manually operated knob 62 fixed to the proximal end of a threaded rod 61 outside the glue filling section 43 separated by a wall 45 and an elevator 63 screwed onto the threaded rod 61 within the glue filling section 43. ing. The outer circumference 621 of the knob 62 has a rectangular tubular shape, particularly a square tubular shape, matching the shape of the outer circumference 441 of the body 44 of the container main body 4 that serves as the grip portion. A male thread 611 is cut on the outer periphery of the threaded rod 61 .

The elevator 63 has a bottomed box shape that opens toward the tip of the container 2 and supports the glue 3 filled in the glue filling space 41 in the glue filling section 43 . A female threaded hole 631 is provided in the center of the bottom of the elevator 63 to engage the male thread 611 of the threaded rod 61 . The outer peripheral surface 632 of the elevator 63 is formed in a square tubular shape, particularly a square tubular shape, so as to match the shape of the inner peripheral surface 431 of the glue filling portion 43 . In this way, one of the inner peripheral surface 431 of the glue filling portion 43 and the outer peripheral surface 632 of the elevator 63 that abuts or is very close to it is provided along the extension direction of the glue 3 and the container 2, that is, the advance and retreat direction of the glue 3. A rail 433 extending in the same direction is provided so as to protrude, and a concave groove 633 extending in the same direction and engaging with the rail 433 is provided on the other side. The concave-convex engagement between the rail 433 and the groove 633 prevents the elevator 63 from rotating about the axis relative to the container body 4 , while preventing the elevator 63 from rotating relative to the container body 4 about the axis. It guides you to move in parallel.

In order to feed the glue 3 from the glue outlet 42 and use it, the user removes the cap 52 to expose the glue outlet 42, and then moves the knob 62 on the outside of the container body 4 to the axis line. It should be rotated in the forward direction. As a result, the screw shaft rotates in the forward direction together with the knob 62, and the elevator 63 screwed therewith moves toward the tip end approaching the glue outlet 42 in the glue filling portion 43 of the container body 4. The supported glue 3 is extruded from the glue filling space 41 through the glue outlet 42 .

In order to make the glue 3 that has been fed out after use go deeper than the glue outlet 42, the user should rotate the knob 62 in the opposite direction around the axis. Then, the screw shaft rotates in the reverse direction, the elevator 63 moves in the direction of the proximal end away from the glue outlet 42 in the glue filling section 43 , and the glue 3 supported by the elevator 63 is pulled into the glue filling space 41 . be After that, the cap 52 is put on again to cover the glue outlet 42 to be in a closed state.

In this embodiment, a container body 4 having a glue filling space 41 in which the glue 3 is filled and a glue outlet 42 at the tip for discharging the glue 3 to the outside, and the glue of the container body 4 A container 2 for the glue stick 1, comprising an opening/closing mechanism 5 which can selectively take either a closed state for airtightly blocking communication of the filling space 41 with the outside or an open state for allowing the glue 3 to be led out to the outside. The opening/closing mechanism 5 includes a cap attachment tube 51 provided on the container body 4 and a cap 52 detachably fitted inside the cap attachment tube 51, and is mounted in the closed state. The container 2 for the glue stick 1 is configured such that the end of the cap 52 is covered with the cap mounting cylinder 51 from the outside and the cap 52 shields the glue outlet 42 from the outside.

When the glue stick 1 is not used, the cap 52 is fitted to the inner periphery 511 of the cap mounting cylinder 51 and attached, so that the glue 3 filled in the glue filling space 41 of the glue filling portion 43 is sealed. It is possible to prevent or suppress temporal changes in the quality and performance of the glue 3 due to drying and other reasons. Moreover, since the end portion of the cap 52 is surrounded and hidden from the outside by the cap mounting cylinder 51, even if the residue of the paste 3 adheres to the outer periphery of the end portion of the cap 52, the residue of the paste 3 will be removed by the user. Contamination of fingers and surrounding objects is avoided.

In addition, in the closed state, the cap 52 is fitted to the fitting portion 512 that is a perfect circle or a nearly perfect circle inside the cap attachment cylinder 51 and/or the outer side of the cap 52 is Since the cap mounting cylinder 51 is fitted into the fitting portion 523 which has a perfect circle or a circular shape close to a perfect circle, as shown in FIGS. It is possible to achieve uniform close contact by pressing, thereby avoiding the problem of loss of airtightness due to gaps occurring in some areas. Therefore, while maintaining the airtightness of the cap 52 in the closed state, the degree of freedom in the shape of the glue outlet 42 can be increased, and the problem of shrinkage and solidification due to the drying of the glue 3 and other deterioration problems can be solved, and the paper can be It is possible to improve the workability of applying the glue 3 to the edges and corners of the .

The glue outlet 42 of the container body 4 has a non-circular shape, particularly a square shape. With such a device, it is possible to draw out the prism-shaped glue 3 from the glue outlet 42 and apply the glue 3 to the corners of a square paper without difficulty and beautifully. The tip cylindrical portion 432 of the glue filling portion 43 and the glue outlet 42 are located ahead of the tip of the cap mounting tube 51, and the visibility thereof is good, so that the operator can always check the position to which the glue 3 is to be applied. can work.

A space 516 is provided between the inner peripheral surface 511 of the cap attachment tube 51 and the outer peripheral surfaces 434 and 441 of the container body 4 to make the thickness of the cap attachment tube 51 uniform along the circumferential direction and to prevent the fitting portion 512 from It can be an exact circular shape. Further, the airtightness in the closed state with the cap 52 attached is further improved. In addition, by providing the gap 516, the cap mounting cylinder 51 is more likely to be elastically deformed in the radial direction. ), the cap 52 can be smoothly attached/detached or opened/closed.

Both the cap attachment tube 51 and the cap 52 are resin molded products. In particular, the cap attachment tube 51 is integrally formed with the container body 4 . Since the cap attachment cylinder 51 and the cap 52 are cylindrical, molding including the ribs 512 and 523 as fitting portions is facilitated.

Further, in the present embodiment, the cap attachment tube 51 extends from its tip end toward the base end direction to the connection portion 515 , and the connection portion 515 is used for the operation of applying the paste 3 on the container body 4 . It faces the tip region of the gripping portion 441 that can be touched by the tip of the thumb or index finger of the user performing the exercise. As a result, the user can naturally hold the container body 4 by putting his or her finger on the proximal end of the cap attachment tube 51, so that the glue stick 1 is difficult to remove and easy to use.

Furthermore, since the outer side 442 of the grip portion 441 is parallel or substantially parallel to the inner side 421 of the glue outlet 42 in a cross-sectional view, the side of the glue 3 fed out from the glue outlet 42 by the user It becomes easy to align the direction of the edge of the paper to which the glue 3 is to be applied in parallel.

The present invention is not limited to the embodiments detailed above. For example, the shape of the glue outlet 42 is not limited to a square shape, and may be a polygonal shape such as a triangular shape or a hexagonal shape, or a circular shape. In that case, the glue 3 discharged from the glue outlet 42 has a polygonal prism shape such as a triangular prism shape or a hexagonal prism shape, or a cylindrical shape.

In the above embodiment, the inner peripheral surface 526 of the end portion of the peripheral wall 521 of the cap 52 is separated from the container body 4 in the closed state in which the cap 52 is attached to the container body 4 . On the other hand, as shown in FIG. 9, the container body 4 is formed with a wall surface 443 that approaches and opposes the inner peripheral surface 511 of the cap mounting cylinder 51, and the inner peripheral surface 511 of the cap mounting cylinder 51 and the wall surface 443 are formed. 443, the end of the peripheral wall 521 of the cap 52 may be inserted. At this time, the wall surface 443 abuts or comes very close to the inner peripheral surface 526 at the end of the peripheral wall 521 of the cap 52 . The wall surface 443 may have a circular or cylindrical shape when viewed from the axial direction. It shows a continuous aspect.

In addition, the specific configuration of each part can be modified in various ways without departing from the scope of the present invention.

REFERENCE SIGNS LIST 1 Glue stick 2 Container 3 Glue 4 Container main body 41 Glue filling space 42 Glue outlet 5 Opening/closing mechanism 51 Cap attachment cylinder 511 Inner peripheral surface 512 Fitting portion (rib)
52... Cap 522... Outer peripheral surface 523... Fitting portion (rib)

Claims (3)

A container main body having a glue filling space for filling the inside with glue and having a non-circular glue outlet at the tip for discharging the glue to the outside, and the glue filling space of the container main body communicating with the outside. A glue stick container comprising an opening and closing mechanism that can selectively assume either a closed state that airtightly blocks the glue or an open state that allows the glue to be led out to the outside,
The opening/closing mechanism includes a cylindrical or substantially cylindrical cap mounting tube provided on the container body, and an open end detachably fitted inside the cap mounting tube forming a cylindrical or substantially cylindrical shape. a cap, wherein the end of the cap attached in the closed state is covered from the outside by the cap attachment cylinder, the cap shields the glue outlet from the outside, and the outer periphery of the cap and the inner periphery of the cap attachment cylinder are closed; is a tight fit, and
A circular rib protruding inward from the inner peripheral surface is formed on the inner peripheral surface of the cap mounting cylinder that covers the cap, and the rib is formed at a predetermined portion of the cylindrical or substantially cylindrical outer peripheral surface of the cap. close to
or,
A cylindrical or substantially cylindrical outer peripheral surface of the cap covered by the cap mounting cylinder is formed with circular ribs protruding outward in a radial direction from the outer peripheral surface. A stick glue container that is in close contact with a predetermined portion of the cylindrical or substantially cylindrical inner peripheral surface of the . In the closed state, the cap is fitted to the rib, which is a circular fitting portion on the inside of the cap mounting cylinder , and the rib, which is a circular fitting portion on the outside of the cap , is fitted. 2. The glue stick container according to claim 1, wherein said cap mounting cylinder is fitted. 3. The glue stick container according to claim 1, wherein said cap mounting cylinder and said cap are resin moldings.

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