JPH11268490A - Bar-like article holder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To allow a bar-like article to be scarcely removed from a bar-like article holder even if a close contact of the article with the holder is weakened by reducing an outer diameter of the article according to drying. SOLUTION: The bar-like article holder 10 is separated therein into a bar-like article holder 10b for filing an end of a bar-like article 12 and a coupling part 10c by a partition plate 10a formed substantially at a center of its interior. Spiral protrusions 10d of female threads are formed on an inner periphery f the holder 10b, and linear protrusions 10e crossing the protrusions 10d are axially extended.

Description

DETAILED DESCRIPTION OF THE INVENTION

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stick holder for holding sticks such as solid glue, color cores, solid cosmetics, and passes.

2. Description of the Related Art Conventionally, as a rod holder of this kind, there is one described in Japanese Utility Model Laid-Open Publication No. Hei 6-74382. In this rod holder, the rod is held by filling the end of the rod into the inside thereof,
A spiral projection is formed on the inner peripheral surface filled with the rod-shaped material. Usually, the rod-shaped object is in close contact with the rod-shaped object holder and does not fall from the rod-shaped object holder. However, the spiral projection locks the rod-shaped object, thereby securely preventing the rod-shaped object from falling.

However, while the bar is used for a long time, for example, the outer diameter of the bar becomes thinner due to drying, and the close contact with the bar holder may be weakened. If a rotational moment acts on the rod in such a state, the rod may rotate with respect to the rod holder, and the rod may come off the rod holder along the spiral projection. Particularly, in the case of the rod-shaped material holder accommodated in the rod-shaped material feeding container, the rod-shaped material holder and the rod-shaped material are often unwound while being rotated with respect to the outer cylinder and retreated while being rotated in the opposite direction. In this case, when the rod is in sliding contact with the outer cylinder, frictional resistance is received from the outer cylinder, relative rotation occurs between the rod and the rod holder, and along the spiral projection according to the direction of rotation. Loosen or tighten. In some cases, the loosening of the screwing does not occur evenly, and the screwing is loosened during repeated use. The present invention has been made in view of such problems,
An object of the present invention is to provide a rod-shaped object holder in which the rod-shaped object is hard to be detached from the rod-shaped object holder.

Means for Solving the Problems In order to achieve the above object, the invention according to claim 1 is a rod holder for holding a rod by filling the end of the rod with the inside thereof. A spiral projection and a linear projection intersecting the spiral projection are formed on the inner peripheral surface filled with the rod-shaped material. Even if a force that causes relative rotation between the rod-shaped object and the rod-shaped object holder is applied, the linear projection prevents such relative rotation, so that the screwing along the spiral projection is not loosened. Absent. According to a second aspect of the present invention, in the first aspect, the rod holder is formed of an elastomer material.

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view illustrating an embodiment of a rod holder according to the present invention. This rod holder 1
Reference numeral 0 has a substantially cylindrical outer shape, and its inside is separated into a rod-shaped object holding portion 10b and a connecting portion 10c by a partition plate 10a formed at a substantially central portion of the inside. A helical projection 10d, which is a female screw, is formed on the inner peripheral surface of the rod-shaped object holding portion 10b, and a linear projection 10e intersecting the helical projection 10d extends in the axial direction. Three linear projections 10e are provided in the circumferential direction at intervals of 120 ° (two are not visible because they are near the front), but the number is not particularly limited and may be one. The rod holder 10 is preferably formed of an elastomer material such as a thermoplastic elastomer, so that the spiral projection 10d is damaged by the elastic deformation of the rod holder 10 itself even if the core pin is forcibly removed after the molding is completed. The core pin can be pulled out without causing the core pin to be pulled out. The rod holder 10b
The inside is filled with the end of the rod-shaped material 12. This stick 1
2. In a state where the rod-shaped material holder 10 is inserted into the cylindrical mold, the material of the rod-shaped material 12 in a fluid state is poured into the rod-shaped material holder 10 and the cylindrical mold and solidified. Molded. Therefore, a spiral groove and a linear groove are formed on the rod 12 corresponding to the spiral protrusion 10d and the linear protrusion 10e. The above-described bar holder 10 is used, for example, in a bar feeder container 20 as shown in FIG. However, the stick-shaped material feeding container 20
Is not limited to the one shown in FIG. 2, and a known rod-shaped object feeding container can be used. 2 is formed integrally with a bottomed rear cylinder 22, a helical shaft 24 inserted in the rear cylinder 22 so as to be non-rotatably movable in the axial direction, and a front end of the helical shaft 24. A connecting part 26, a front cylinder 28 fitted into the front end side of the rear cylinder 22 and attached to the rear cylinder 22 so as to be axially immovable and rotatable;
0, and a protrusion 28a is provided on the inner peripheral surface of the rear part of the front cylinder 28 so as to be engaged with the spiral groove 24a of the spiral shaft 24. Then, the annular concave portion 10f of the connecting portion 10c of the rod-shaped object holder 10 is fitted in the annular convex portion 26a of the connecting portion 26 so as to be detachably attached. In the stick-shaped object feeding container 20 using the stick-shaped object holder 10 configured as described above, when the cap 30 is removed and the rear cylinder 22 is rotated in a certain direction with respect to the front cylinder 28, the rear cylinder 22 cannot rotate. The helical shaft 24 rotates with respect to the front cylinder 28, and the helical shaft 24 is guided by the protrusion 28a of the front cylinder 28 and is fed forward. As a result, the rod holder 10 connected to the connecting portion 26 integral with the helical shaft 24
It is paid out while rotating with 4. Also, the rear cylinder 22
Is rotated with respect to the front cylinder 28 in the opposite direction, the rod-shaped object holder 10 retreats with the spiral shaft 24 while rotating. The spiral projection 10d of the rod holder 10 is the rod 1
2, the bar 12 is locked by the spiral protrusion 10d, and even if the bar 12
Does not fall off the rod-shaped object holder 10 even if the outer diameter of the rod becomes smaller. For example, if an annular projection is used instead of the spiral projection 10d, the outer diameter of the cross section of the rod 12 at the location where the annular projection is formed is locally reduced, and the rod 12 is easily broken there. The spiral projection 10d prevents the rod 12 from breaking only by preventing the outer diameter of a specific cross section of the rod 12 from becoming locally thin. In order to prevent the rod 12 from rattling against the front cylinder 28 when the rod 12 is used, it is desirable that the outer diameter of the rod 12 is substantially the same as the inner diameter of the front cylinder 28. In such a case, the rod-shaped material holder 10 and the rod-shaped material 12 move while rotating within the front cylinder 28 when the rod-shaped material holder 10 is extended and retracted. The object 12 receives frictional resistance from the front cylinder 28 and tries to rotate with respect to the rod-shaped object holder 10.
However, the linear projection 10e of the rod holder 10
The relative rotation between the rod-shaped object holder 10 and the rod-shaped object 12 is prevented by the engagement between the rod-shaped object 12 and the linear groove of the rod-shaped object 12, so that the rod-shaped object 12 does not fall from the rod-shaped object holder 10. Even if the linear projection 10e is provided, it is the same that only the outer diameter of the specific cross section of the rod-shaped object 12 does not locally become thin, so that the rod-shaped object 12 can be prevented from breaking. Also, when the rod 12 is rotated with respect to the rod holder 10 due to a rotational moment during use of the rod 12, the linear projection 10e similarly prevents the rod 12 from rotating. Note that the rod-shaped material holder of the present invention is not limited to the one used for the rod-shaped material feeding container, and a rotating moment may act on the rod-shaped material 12 during use even if it is of a type that does not draw out. And can be similarly applied. In addition, the rod-shaped object holder of the present invention,
It may be of an exchangeable type that is detachably connected to the stick-shaped object feeding container as in the illustrated example, or a disposable type that cannot be attached to or detached from the stick-shaped object feeding container. The linear projection does not necessarily extend in the axial direction, and may be inclined with respect to the axial direction as long as it intersects with the spiral projection 10d.

As described above, according to the first aspect of the present invention, the rod-shaped object is locked by the spiral projection formed on the peripheral surface of the rod-shaped object holder. By preventing only the outer diameter of the rod from becoming locally thin, it is possible to prevent the rod-shaped object from falling. Further, since the linear projections intersecting with the spiral projections are formed, even if a force that causes relative rotation between the rod-shaped object and the rod-shaped object acts, the linear projections have such a shape. Since the relative rotation is prevented, the screwing does not loosen along the spiral projection, and the rod does not come off the rod holder. According to the second aspect of the present invention, even when spiral projections or linear projections are formed on the inner peripheral surface of the rod-shaped object holder, the elastic deformation of the rod-shaped object holder itself during molding these. Even if the core pin is forcibly pulled out in the axial direction, the helical projections and the like are not damaged, and therefore, it is not necessary to rotate the core pins along the helical projections.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an embodiment of a rod holder according to the present invention.

FIG. 2 is a vertical cross-sectional view showing a stick-shaped object feeding container in which the stick-shaped object holder of the present invention is used.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Rod holder 10d Spiral projection 10e Linear projection 12 Rod

Claims (2)

[Claims] 1. A rod holder for holding a rod by filling an end of the rod into the interior thereof,
A rod holder, wherein a spiral projection and a linear projection intersecting the spiral projection are formed on an inner peripheral surface filled with the rod. 2. The rod holder according to claim 1, wherein the rod holder is formed of an elastomer material.