JP2000309385A - Stick feeding tool - Google Patents

Abstract

(57) [Summary] [PROBLEMS] A rod-shaped object is fed out while rotating, so that the rod-shaped object may be damaged. The clearance between the rod and the front shaft causes a large backlash, so the rod-shaped object is stored when dropped excessively. There was a problem that the rod-like material was broken. SOLUTION: Rear shaft 1 provided with spiral means 1c on the inner periphery
A front shaft 2 rotatably provided with respect to the rear shaft 1 and having an engagement means 2c formed in the longitudinal direction on the inner side, and a rotation of the front shaft 1 for preventing rotation by engagement with the engagement means 2c. An anti-rotation means 3b is provided on the outside and a rod-shaped object receiving part 3a is provided at a front part, and a rear part is movable in the longitudinal direction by engaging with the helical means 1c in the rear shaft 1. And the slider 3 provided in an impossible manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cassette-type bar feeding device in which a bar can be exchanged. The present invention relates to a rod-shaped object feeding tool for straightly feeding by a rotation operation.

[0002]

2. Description of the Related Art Heretofore, as this kind of rod-like material dispensing tool, for example, the one described in Japanese Patent Application Laid-Open No. H10-77075 has been proposed. In other words, according to this conventional example, the rod-shaped object holding portion of the rod-shaped object feeding tool composed of the front shaft and the rear shaft that is rotatable with respect to each other is configured as a cassette, and the rod-shaped material such as a bar-shaped cosmetic product is not directly touched by a hand. This makes it possible to exchange goods.

[0003]

However, in such a conventional rod feeding device, since the slider is advanced while rotating along the spiral groove inside the front shaft by the feeding operation, the rod is fed while rotating. I was

That is, in this conventional example, the slider holding portion is engaged with the spiral groove in the front shaft rotatable with the rear shaft through the slit of the center shaft which rotates integrally with the rear shaft. When the shaft or the rear shaft is operated to rotate, the slider is configured to advance while rotating with respect to the front shaft.
Therefore, if the diameter of the rod-shaped material varies and is too thick, the rotation may break the rod-shaped material.

[0005] In particular, in the case of a bar-shaped cosmetic such as an eyeliner,
It is necessary to use a thin rod to draw a thin line. However, when a thin rod is used in a conventional one, there is a possibility that the rod may be broken during operation.

Further, when a thin rod-shaped object is used, if the backlash is large due to the clearance with the inner wall such as the tip shaft, the stored rod-shaped object is easily broken by an impact such as dropping. In addition, when an unreasonable operation beyond the rotation operation range necessary for the slider movement range is performed, there is a risk that such a rotation operation may damage components.

In spite of the fact that the present invention has such a cassette-type function, the number of components is extremely reduced, the assembling is facilitated, and the rod-like object advances without rotating during the feeding operation. It is an object of the present invention to provide a rod feeding device which has no problem in operability even when a thin rod suitable for drawing a thin line is used, and which can use an extremely fine rod.

Further, according to the present invention, even if the receiving portion of the slider itself does not have a buffer function, a guide portion for protecting the rod-shaped object is provided in the longitudinal direction of the front shaft and the outer peripheral wall surrounding the rod-shaped object is provided to increase the clearance. It is an object of the present invention to provide a rod-like material dispensing tool which can use a rod-like material such as an extra fine core because breakage of the rod-like material can be eliminated by impact due to dropping or the like by making it extremely small. .

Still another object of the present invention is to provide a rod-like material feeding device which does not damage parts because the slider idles even by an excessive rotation operation beyond the limit.

[0010]

SUMMARY OF THE INVENTION According to the present invention, there is provided a rod-shaped object feeding device comprising: a rear shaft provided with a helical means on an inner periphery thereof; a rotatable means provided on the rear shaft; Is formed on the front shaft, and a rotation preventing means for preventing rotation by engagement of the front shaft with the engaging means is provided on the outside, a rod-shaped object receiving portion is provided on the front portion, and the rear portion is provided on the rear shaft. And a slider which is movable in the longitudinal direction by being engaged with the spiral means, but is not rotatable with respect to the front shaft.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exploded perspective view of a rod-shaped object feeding device according to an embodiment of the present invention.

FIG. 1 and FIG. 2 show a rod-like material dispensing tool for linearly dispensing a rod-like cosmetic such as an eyeliner according to an embodiment of the present invention by a rotating operation, and using an extremely fine rod with a circular end face. Is shown. In FIG. 1, this rod-shaped object feeding device has a rear shaft 1 having a bottom portion 1a at a rear end and a front end opening 1b formed as an exterior member;
It has a front end 2 having a front end opening 2b from which a rod-shaped object is fed out and rotatably provided with respect to a rear shaft 1, and is formed in a pencil shape as a whole.

That is, as shown in FIG. 3, the rear shaft 1 is a cylindrical body having a bottom, and a single spiral groove 1c is formed in the front inner periphery separated from the inwardly concave bottom 1a. And
In the vicinity of the front end opening 1b of the rear shaft 1, a wide fitting concave portion 1d into which the front shaft 2 is rotatably fitted is formed.

FIG. 4 is an enlarged front view of the front shaft 2.
The front part of the front shaft 2 is formed to have a diameter gradually decreasing toward the front end opening 2b as a front tool part 2a. A fitting protrusion 2f for rotatably engaging with the fitting recess 1d of the rear shaft 1 is formed on the rear outer side of the leading tool portion 2a. That is, since the front shaft 2 is partially fitted to the rear shaft 1 by the fitting projections 2f, the front shaft 2 is easily rotated relative to each other, and is easily attached to and detached from the rear shaft 2 for replacement of a rod-shaped object. Has become.

An annular groove 2g to which an elastic O-ring described later is attached is formed at a rear position slightly separated from the fitting projection 2f. A guide groove 2c (FIG. 2) serving as an engagement means for preventing rotation of the slider 3 by engaging with a guide rib 3b serving as a rotation preventing means for the slider 3 described later is provided inside the front portion of the front shaft 2. It is provided in the longitudinal direction.

Further, an integral extension 2d (protection means) is formed from the tip of the front shaft 2 so as to extend rearward in a concentric cross section. This extending portion 2d has a very small clearance between the rod-shaped object and the
It has a function of preventing breakage of the rod-shaped object from impact such as dropping. In FIG. 1, reference numeral 2e indicates a chamfered portion formed inside the rear end of the extension 2d.

Next, the slider 3 that slides inside the exterior member composed of the rear shaft 1 and the front shaft 2 will be described in detail with reference to FIGS. That is, a slider 3 that holds a rod-shaped object and slides in the rear shaft 1 is provided in the rear shaft 1, and a receiving portion 3a that holds the rod-shaped object is provided at the front of the slider 3. .

As shown in FIG. 1, the slider 3 includes a hollow cylindrical portion 3d extending rearward from the partition portion 3c, an axial center portion 3e extending forward, and a radially outer portion extending from the axial center portion 3e. And a peripheral part 3f formed integrally with the partition part 3c and having a concentric cross section. When the slider 3 moves, the outer peripheral portion 3f is guided through the gap formed between the leading end portion 2a and the extending portion 2d, which is the outer peripheral wall of the front shaft 2, so that the slider 3 moves smoothly. Can be done.

Further, the slider 3 is located inside the front end of the rear shaft 1, and the rear end of the slider 3 is provided in engagement with the rear shaft 1 to rotate integrally with the rear shaft 1. I have. That is, as described above, the spiral groove 1c is formed on the inner periphery of the rear shaft 1 as a spiral means, but the outside of the rear end of the slider 3 has a large-diameter engaging member for screwing with the spiral groove 1c. Joint 3
The screw piece 3gg is provided on the outer wall of g. Then, when the slider 3 is set in the front shaft 2, it engages with the guide groove 2c of the front shaft 2 to prevent the rotation of the slider 3, thereby enabling the movement only in the longitudinal direction.

A pair of engagement screw pieces 3gg formed at the rear end of the slider 3 in accordance with the inclination of the spiral groove 1c provided on the inner periphery of the rear shaft 1 are integrally formed outside the engagement portion 3g. It is provided in. Then, when the slider 3 is set on the rear shaft 1 and the front shaft 2 or the rear shaft 1 is rotated, the screw 3gg
Works by screwing into the spiral groove 1c of the rear shaft 1 to rotate the slider 3 and move forward. However, since the guide rib 3b of the slider 3 is engaged with the guide groove 2c in the front shaft 2 and rotation thereof is prevented, the slider 3 rises, that is, goes straight without rotating in the front shaft 2.

A pair of split grooves 3h are formed on the engaging portion 3g of the slider 3 so as to be opposed from the rear end. The split grooves 3h are more difficult when the slider 3 is at the uppermost position or the lowermost position. 3h
Is bent inward and the slider 3 runs idle, so that there is no possibility that the components are damaged.

In FIG. 1, reference numeral 4 denotes an O-ring made of an elastic material such as rubber, which is set in the annular groove 2g of the front shaft 2 so that the front shaft 2 and the rear shaft 1 can be easily assembled. And smooth mutual rotation.

In order to better understand the configuration of the rod-shaped object feeding device according to the above embodiment, the assembling procedure will be described as follows. That is, first, the rear end of the slider 3 is inserted into the front end opening 1b of the rear shaft 1, and the slider 3 is pushed down to the deepest portion of the rear shaft 1 while rotating with the screw 3gg engaged with the spiral groove 1c.

Next, the O-ring 4 is attached to the annular groove 2g of the front shaft 2 and attached. After that, the guide rib 3b of the slider 3 is pushed into the guide groove 2c of the front shaft 2 and is pushed in.
Is inserted so as to be rotatable with respect to the rear shaft 1 by fitting the front shaft 2.

When the slider 3 is completely pushed in while the guide rib 3b of the slider 3 is engaged with the guide groove 2c inside the front shaft 2, the slider 3 and the front shaft 2 rotate integrally by this engagement structure. . In this case, the mounting of the rod-shaped object is performed in a factory as a process of assembling the cassette and is not performed by the user, so that there is no problem in hygiene.

The operation of the rotary rod feeding device according to the embodiment of the present invention will be described below. First,
Before use, the rod-shaped object is stored in the front shaft 2, that is, FIG.
As shown in (1), the tip of the rod-like object is slightly retracted from the tip opening 2b of the front shaft 2, and in this state, the front shaft 2 is rotated with the rear shaft 1. Then, since the rotation of the slider 3 is locked with respect to the front shaft 2 by the engagement between the guide rib 3b and the guide groove 2c of the front shaft 2, the slider 3 rotates together as a unit.

At this time, a screw 3gg formed on the engaging portion 3g at the rear of the slider 3 is guided by the spiral groove 1c of the rear shaft 1, and the guide rib 3b of the slider 3 is formed inside the front shaft 2 by the guide. Since the slider 3 is engaged with the groove 2c, the slider 3 is moved straight in the front shaft 2 by being restricted by the guide groove 2c. As a result, the rod-like object held by the slider 3 projects from the distal end opening 2b of the front shaft 2 and becomes usable.

Since the slider 3 has a split groove 3h formed at the rear end of the engaging portion 3g, when it moves to the most movable end, the rod-shaped material becomes very worn or excessively, and the rear shaft is excessively worn. If the tip shaft 2 is rotated too much with respect to
Will not idle and move forward more than necessary.

After use, when the front shaft 2 is rotated in the opposite direction to the above, the rod-like material held by the slider 3 can be easily stored in the front shaft 2. In this case, similarly, after the slider 3 is retracted to the movable end,
Further, even if the front shaft 2 is rotated too much, the slider 3 does not run backward due to idling, so that the parts are not damaged.

When the rod becomes unusable due to wear due to use, the slider 3 on which the front shaft 2 and the residual rod are mounted is unitized as a whole. It is sufficient to remove the cassette and load a new rod-shaped cassette into the rear shaft 1 from the front. That is, tip shaft 2
When the rear shaft 1 and the rear shaft 1 are pulled in different directions, a fitting recess 1 d and a fitting projection 2 which constitute a fitting means of the front shaft 2 and the rear shaft 1 are formed.
The connection with f is released.

As a result, a rod-like object holding mechanism other than the rear shaft 1
That is, the tip shaft 2 and the slider 3 can be integrally removed together as a cassette. So in this case,
In particular, there is an advantage that a bar-shaped object such as cosmetics can be replaced with a new one without directly touching it with a finger.

Next, FIGS. 6 to 8 show modified examples of the slider 3 in the rod feeding device according to the embodiment of the present invention.

First, FIG. 6 shows a structure for achieving the idling function of the slider 3 at the rear end of the slider 3. In this case, an elongated hole 3i having a rear end closed by a reinforcing portion 3j is formed instead of the split groove 3h in FIG. Therefore, since this portion of the slider 3 is reinforced by the reinforcing portion 3j, the elongated hole 3i is elongated, so that a soft feel when idling is obtained and the durability during idling due to excessive rotation is excellent. There is.

FIG. 7 is a longitudinal sectional view of a main part showing another modification of the slider 3. As shown in FIG. In the figure, the slider 3 is composed of two parts of a slider body including a receiving member 3p and a shaft center 3k, and a small diameter portion is formed at the front of the shaft center 3k.
The mounting portion of the receiving member 3p is press-fitted integrally with the small diameter portion to form the slider 3. And the receiving member 3p
The inner wall has a holding rib 3m for holding a rod-like object in the longitudinal direction.
A plurality of (shown by dotted lines) are formed to function to prevent the rod-shaped object from coming off. If a chamfer for guiding the rod-like object is formed inside the distal end of the receiving member 3, the insertion of the rod-like object is easy.

FIG. 8 shows a slider 3 of a rod-like object feeding device according to still another embodiment of the present invention. In this case, the slider main body including the receiving pipe 3n and the shaft center 3k is a separate part and is made of a different material. It is formed of various materials. That is, in this case, the slider body is formed of a synthetic resin, while the receiving pipe 3n is formed of metal, and an inwardly projecting dowel 3nn is provided at an appropriate position of the receiving pipe 3n where the rod-like object is attached. Have been. The dowel 3nn is securely held in the receiving pipe 3n so that the rod-shaped object does not come off. Note that, similarly to the above, a chamfer for guiding a rod-shaped object may be formed inside the distal end of the receiving pipe 3n.

In the above embodiment, the front shaft 2
Although the guide rib is used as a rotation preventing means of the slider 3 and the engaging means of the front shaft 2 is a guide groove, these concave and convex relationship may be reversed, that is, the guide rib is formed on the front shaft 2 and the other guide groove is formed on the slider 3. May be formed.

[0037]

Since the configuration of the present invention is as described above, the slider loaded with the bar-like object goes straight in the front shaft without rotating regardless of the rotation operation, so that it is suitable for an extremely fine bar-like material. In addition, the rod-shaped object holding portion has a cassette-type configuration in which the rod-shaped object is loaded, so that the rod-shaped object such as cosmetics can be replaced without directly touching the rod-shaped object.

Further, according to the present invention, since the rod-shaped object is protected by the protection means provided on the front shaft, even if the rod-shaped object loaded in the receiving portion of the slider has a particularly fine core,
Since the impact due to the drop or the like is covered by the protection means, there is an effect that the rod-shaped object is prevented from being broken.

Further, according to the present invention, there is an effect that the components are not damaged by the idle rotation of the slider even by an unreasonable rotation operation beyond the limit by assembling easily.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view in which a part of a rod-shaped object feeding device according to an embodiment of the present invention is omitted.

FIG. 2 is an enlarged sectional view taken along line AA of FIG.

FIG. 3 is an enlarged longitudinal sectional view of a rear shaft of FIG. 1;

FIG. 4 is an enlarged front view of a front shaft of FIG. 1;

FIG. 5 is an enlarged front view of the slider of FIG. 1;

FIG. 6 is a front view showing a modification of the slider of FIG. 5;

FIG. 7 is a vertical sectional view showing a main part of another modification of the slider of FIG. 5;

FIG. 8 is a vertical sectional view of an essential part showing still another modification of the slider of FIG. 5;

[Explanation of symbols]

 Reference Signs List 1 rear shaft 1a bottom 1b front end opening 1c spiral groove 1d fitting recess 2 front shaft 2a front tool 2b tip opening 2c guide groove (engaging means) 2d extension part (protection means) 2e chamfered part 2f fitting protrusion 2g annular Groove 3 Slider 3a Receiving part 3b Guide rib (rotation preventing means) 3c Partition part 3d Hollow part 3e Shaft center part 3f Outer part 3g Engaging part 3gg Screw piece 3h Split groove 3i Slot 3j Reinforcing part 3k Shaft center part 3p Receiving member 3m Retaining rib 3n Receiving pipe 3nn dowel 4 O-ring

Claims (9)

[Claims] 1. A rear shaft provided with helical means on its inner periphery, a front shaft provided rotatably with respect to the rear shaft and having engagement means formed in an inner longitudinal direction, and said engagement of said front shaft. A rotation preventing means for preventing rotation by engagement with the means is provided on the outside, a rod-shaped object receiving part is provided at the front part, and a rear part has an engaging means engaging with the spiral means in the rear shaft. And a slider which is movable in the longitudinal direction but is not rotatable with respect to the front axis. 2. The front shaft engaging means is a guide groove formed in the inside longitudinal direction, and the slider rotation preventing means is engaged in the guide groove of the front shaft in the outside longitudinal direction. The rod-like material feeding device according to claim 1, wherein the tool is a guide rib provided on the rod. 3. The rod-shaped object feeding device according to claim 1, wherein a protection means for guiding the rod-shaped object is provided in the front shaft. 4. The protection means is an extension part which is spaced radially inward from the outer peripheral wall of the tip shaft and has a concentric cross section and projects rearward from the tip end of the tip shaft, and the extension part. 4. The rod-shaped object feeding device according to claim 3, wherein a chamfer for guiding is formed inside the rear end. 5. A front portion of the slider comprises a central shaft body and an outer peripheral portion provided with a radially outwardly spaced concentric cross section, and the outer peripheral portion is provided when the slider advances. 5. The rod-shaped product feeding device according to claim 4, wherein the device is moved between the outer peripheral wall of the front shaft and the extending portion. 6. The rod-shaped material feeding device according to claim 1, wherein a split groove or a hole is formed in a side wall of the rear end engaging portion of the slider so that the slider runs at the uppermost position and the lowermost position, respectively. 7. A fitting recess is formed inside the front part of the rear shaft, and a fitting projection and an annular groove are formed near the rear outside of the leading part of the front shaft corresponding to the fitting recess. The rod-shaped object feeding device according to claim 1. 8. A receiving portion of the slider is formed separately from the slider main body, and a holding rib for holding a rod-shaped object is provided in a longitudinal direction of an inner wall of the receiving portion. 2. A chamfered portion for use in a vehicle.
The rod-shaped dispensing tool described in the above. 9. The receiving part comprises a metal pipe fixed to a slider body, a dowel for holding a rod-shaped object is provided at a front part of the metal pipe, and a guide is provided inside a tip end of the metal pipe. 2. A chamfered portion for use in a vehicle.
The rod-shaped dispensing tool described in the above.