【０００１】
【発明の属する技術分野】
本発明は、鉛筆の黒芯や色芯、クレヨン、消しゴム、化粧品の口紅やアイブロー等の棒状部材繰出装置に関するものである。
【０００２】
【従来の技術】
従来、この種の棒状部材繰出装置としては、軸筒（先軸）に螺旋溝が形成され、かつ、内筒（中軸）にスリットが形成され、棒状部材を保持する保持部材（スライダ）の突起がスリットを挿通して軸筒の螺旋溝に係合して構成されていた（例えば、特許文献１参照。）。
【０００３】
【特許文献１】
特開平１０−２１１０２１号公報（図１）
【０００４】
【発明が解決しようとする課題】
従って、従来の棒状部材繰出装置は、軸筒の内面に螺旋溝を形成する加工が難しく、コスト高になるとともに組立性も非常に困難であった。
【０００５】
本発明は、上記課題を解消する棒状部材繰出装置を提供することを目的とするものである。
【０００６】
【課題を解決するための手段】
本発明は、後部周面に螺旋溝を形成するとともに長手方向に伸びた切溝を形成した軸筒と、棒状部材を保持するための保持部を有するとともに軸筒に対して長手方向には摺動可能であるが回動不可能な棒状部材保持具と、内面に突部を形成するとともに棒状部材保持具に対して回動は可能であるが長手方向には連動して移動する操作部材からなり、操作部材の突部が軸筒の螺旋溝に係合し、操作部材を回動することにより、操作部材及び棒状部材保持具が軸筒に対して前進するものである。
【０００７】
【実施例】
以下、図１、図２、図３及び図４に基づいて本発明の棒状部材繰出装置を説明する。尚、図１の左側を前方とし、右側を後方とする。また、棒状部材としては、ゲル形成物質、着色材及び溶剤として水を多く含んだ固形描画材で説明する。軸筒１の後部周面に後端より連通した螺旋溝１Ａを形成し、かつ、螺旋溝１Ａを横切って長手方向に伸びた切溝１Ｂを形成する。この切溝１Ｂの後部は、後述する隆起部２Ａの抜けを防ぐために幅が狭くなった係止部１Ｃを形成するとともに、更に、係止部１Ｃの後端部はテーパー状となって隆起部２Ａが挿入し易い形状とする。軸筒１の前部係止部１Ｄにはキャップ３が着脱可能に取り付けられるが、最初はキャップ３の天部内面３Ａが軸筒１の前端に密着するように、キャップ３の第１係止部３Ｂを軸筒１の前部係止部１Ｄに取り付ける。
【０００８】
棒状部材保持具２は、前部内面に長手方向に伸びたリブ２Ｂが複数形成されるとともに、中心部が開口した内鍔２Ｃが形成され、固形描画材４を保持するための保持部２Ｄが形成される。また、棒状部材保持具２の後部には隆起部２Ａが形成され、この隆起部２Ａの中間部に切欠部２Ｅを形成する。
【０００９】
リング状の操作部材５の内面には、円周状に伸びた突条部５Ａを形成するとともに、この突条部５Ａの内面の略半周に突部５Ｂを形成する。この突部５Ｂは前記軸筒１の螺旋溝１Ａと係合できるように傾斜して形成される。
【００１０】
前記棒状部材保持具２の隆起部２Ａに操作部材５を外嵌し、操作部材５の突条部５Ａを隆起部２Ａの切欠部２Ｅに係合することにより、棒状部材保持具２に対して操作部材５を回動可能に取り付ける。この棒状部材保持具２を軸筒１の後端より挿入し、棒状部材保持具２の前部外周を軸筒１の内面に長手方向に摺動可能に密接させるとともに、隆起部２Ａを軸筒１の切溝１Ｂに摺動可能に挿入する。この時、隆起部２Ａは軸筒１の係止部１Ｃによって切溝１Ｂからの外れが防止される。また、操作部材５の突部５Ｂは軸筒１の後端より挿入されて螺旋溝１Ａに係合される。
【００１１】
そして、軸筒１の後端、棒状部材保持具２の後端及び操作部材５の後端を一致させた状態で軸筒１の前端を下に向け、棒状部材保持具２の内鍔２Ｃ内を通って、８０℃程度の高温によって溶融された液状物を軸筒１内に流し込む。この時、軸筒１の前端にキャップ３の天部内面３Ａが密着されているので、液状物が軸筒１の前端より流れ出る恐れはない。この液状物は常温に冷やされることによって固体となり固形描画材４が形成される。この固形描画材４の後部が棒状部材保持具２の保持部２Ｄに保持される。更に、固形描画材４の乾燥を防ぐために、固形描画材４の後端部に密栓６を流し込む。この密栓６はポリブデン、シリコンオイル等の乾燥防止用オイルから形成される。
【００１２】
次に、前記固形描画材４を繰り出す操作を説明する。先ず、軸筒１の前部係止部１Ｄに取り付けられたキャップ３を外す。その後、操作部材５を正方向に回動させると、軸筒１に形成された螺旋溝１Ａに沿って突部５Ｂが摺動し、操作部材５が正方向に回動しながら前進する。すると、操作部材５の突条部５Ａが棒状部材保持具２の切欠部２Ｅに係合しているので、棒状部材保持具２の隆起部２Ａが軸筒１の切溝１Ｂに沿って前進する。従って、棒状部材保持具２とともに固形描画材４が前進する。
【００１３】
また、固形描画材４が軸筒１の前端より出すぎた場合には、操作部材５を逆方向に回動させると、操作部材５の突部５Ｂが軸筒１の螺旋溝１Ａに沿って摺動し、棒状部材保持具２及び固形描画材４が後退する。そして、描画が終了した場合には、軸筒１にキャップ３を取り付けるが、今度はキャップ３の天部内面３Ａと軸筒１の前端が適宜離間するように、キャップ３の第２係止部３Ｃを軸筒１の前部係止部１Ｄに取り付ける。
【００１４】
尚、本発明は上記実施例に限定されるものではなく、軸筒、棒状部材保持具及び操作部材を、それぞれ２個以上の部品を螺合、圧入、接着等によって一体化することも可能である。
【００１５】
また、上記実施例は棒状部材として固形描画材で説明したが、棒状部材としては、その他に鉛筆の黒芯や色芯、クレヨン、消しゴム、化粧品の口紅やアイブロー等種々の棒状部材が利用可能である。
【００１６】
【発明の効果】
以上詳述したように本発明によれば、軸筒の後部周面に螺旋溝を形成するとともに長手方向に伸びた切溝を形成することにより、軸筒の加工が簡単になるとともに組立性も向上し、コストが各段に下げられる効果が奏せられるものである。
【図面の簡単な説明】
【図１】本発明の棒状部材繰出装置を示す断面図である。
【図２】図１のＡ−Ａ線を示す断面図である。
【図３】図１のＢ−Ｂ線を示す断面図である。
【図４】本発明の棒状部材繰出装置を示す平面図である。
【符号の説明】
１ 軸筒
１Ａ 軸筒１の螺旋溝
１Ｂ 軸筒１の切溝
２ 棒状部材保持具
２Ｄ 棒状部材保持具２の保持部
５ 操作部材
５Ｂ 操作部材５の突部[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a bar-shaped member feeding device such as a black core or color core of a pencil, a crayon, an eraser, a lipstick or an eyebrow of cosmetics.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, as a rod-shaped member feeding device of this type, a spiral groove is formed in a shaft cylinder (lead shaft), and a slit is formed in an inner cylinder (middle shaft). Is configured to penetrate a slit and engage with a spiral groove of a shaft cylinder (for example, see Patent Document 1).
[0003]
[Patent Document 1]
JP-A-10-211021 (FIG. 1)
[0004]
[Problems to be solved by the invention]
Therefore, in the conventional rod-shaped member feeding device, it is difficult to form a spiral groove on the inner surface of the shaft cylinder, which increases the cost and makes it extremely difficult to assemble.
[0005]
An object of the present invention is to provide a rod-shaped member feeding device that solves the above-mentioned problems.
[0006]
[Means for Solving the Problems]
The present invention has a shaft cylinder having a spiral groove formed in a rear peripheral surface and a cut groove extending in a longitudinal direction, a holding part for holding a rod-shaped member, and a sliding part in a longitudinal direction with respect to the shaft cylinder. A rod-shaped member holder that can move but cannot rotate, and an operating member that has a projection formed on the inner surface and is rotatable with respect to the rod-shaped member holder but moves in conjunction with the longitudinal direction. That is, the protrusion of the operating member is engaged with the spiral groove of the barrel, and the operating member and the rod-shaped member holder are advanced with respect to the barrel by rotating the operating member.
[0007]
【Example】
Hereinafter, the rod-shaped member feeding device of the present invention will be described based on FIGS. 1, 2, 3, and 4. In addition, let the left side of FIG. 1 be front, and let the right side be back. The rod-shaped member will be described as a solid drawing material containing a large amount of water as a gel-forming substance, a coloring material, and a solvent. A spiral groove 1A communicating from the rear end is formed on the rear peripheral surface of the shaft cylinder 1, and a cut groove 1B extending in the longitudinal direction across the spiral groove 1A is formed. The rear portion of the kerf 1B forms a locking portion 1C having a reduced width in order to prevent the protruding portion 2A described below from coming off, and the rear end portion of the locking portion 1C is tapered to form a protruding portion. The shape is such that 2A can be easily inserted. The cap 3 is detachably attached to the front locking portion 1 </ b> D of the barrel 1, but the first locking of the cap 3 is performed so that the top inner surface 3 </ b> A of the cap 3 comes into close contact with the front end of the barrel 1. The part 3B is attached to the front locking part 1D of the barrel 1.
[0008]
The rod-shaped member holder 2 has a plurality of ribs 2B extending in the longitudinal direction formed on the inner surface of the front portion, an inner flange 2C having an open central portion, and a holding portion 2D for holding the solid drawing material 4. It is formed. A raised portion 2A is formed at the rear of the rod-shaped member holder 2, and a cutout 2E is formed at an intermediate portion of the raised portion 2A.
[0009]
A circumferentially extending ridge 5A is formed on the inner surface of the ring-shaped operation member 5, and a protrusion 5B is formed on substantially the half circumference of the inner surface of the ridge 5A. The projection 5B is formed to be inclined so as to be able to engage with the spiral groove 1A of the shaft cylinder 1.
[0010]
The operating member 5 is externally fitted to the raised portion 2A of the rod-shaped member holder 2, and the protrusion 5A of the operating member 5 is engaged with the notch 2E of the raised portion 2A. The operation member 5 is rotatably mounted. The rod-shaped member holder 2 is inserted from the rear end of the shaft cylinder 1 so that the front outer periphery of the rod-shaped member holder 2 is in close contact with the inner surface of the shaft cylinder 1 so as to be slidable in the longitudinal direction. 1 is slidably inserted into the incision 1B. At this time, the raised portion 2A is prevented from coming off from the cut groove 1B by the locking portion 1C of the shaft cylinder 1. Further, the protrusion 5B of the operation member 5 is inserted from the rear end of the barrel 1 and is engaged with the spiral groove 1A.
[0011]
Then, with the rear end of the barrel 1, the rear end of the rod-shaped member holder 2, and the rear end of the operating member 5 aligned, the front end of the shaft cylinder 1 is directed downward, and the inner flange 2 </ b> C of the rod-shaped member holder 2 is moved downward. , And the liquid material melted at a high temperature of about 80 ° C. is poured into the barrel 1. At this time, since the top inner surface 3 </ b> A of the cap 3 is in close contact with the front end of the barrel 1, there is no possibility that the liquid material flows out of the front end of the barrel 1. The liquid material becomes solid when cooled to room temperature, and the solid drawing material 4 is formed. The rear portion of the solid drawing material 4 is held by the holding portion 2D of the rod-shaped member holder 2. Further, in order to prevent the solid drawing material 4 from drying, a hermetic plug 6 is poured into the rear end of the solid drawing material 4. The hermetic stopper 6 is formed from a drying prevention oil such as polybutene or silicone oil.
[0012]
Next, an operation of feeding the solid drawing material 4 will be described. First, the cap 3 attached to the front locking portion 1D of the barrel 1 is removed. Thereafter, when the operating member 5 is rotated in the forward direction, the protrusion 5B slides along the spiral groove 1A formed in the barrel 1, and the operating member 5 advances while rotating in the forward direction. Then, since the protrusion 5A of the operating member 5 is engaged with the cutout 2E of the rod-shaped member holder 2, the raised portion 2A of the rod-shaped member holder 2 advances along the cut groove 1B of the shaft cylinder 1. . Therefore, the solid drawing material 4 moves forward together with the rod-shaped member holder 2.
[0013]
When the solid drawing material 4 is excessively protruded from the front end of the barrel 1, when the operating member 5 is rotated in the opposite direction, the protrusion 5B of the operating member 5 moves along the spiral groove 1A of the barrel 1. The rod-like member holder 2 and the solid drawing material 4 slide back and retreat. When the drawing is completed, the cap 3 is attached to the barrel 1, but this time, the second locking portion of the cap 3 is set so that the top surface 3 </ b> A of the cap 3 and the front end of the barrel 1 are appropriately separated. 3C is attached to the front locking portion 1D of the barrel 1.
[0014]
Note that the present invention is not limited to the above embodiment, and it is also possible to integrate the barrel, the rod-shaped member holder and the operating member by screwing, press-fitting, bonding, or the like two or more parts. is there.
[0015]
Although the above-described embodiment has been described using a solid drawing material as the bar-shaped member, various other bar-shaped members such as a black core or color core of a pencil, a crayon, an eraser, a lipstick or an eyebrow of cosmetics can be used as the bar-shaped member. is there.
[0016]
【The invention's effect】
As described above in detail, according to the present invention, by forming a spiral groove on the rear peripheral surface of the barrel and forming a notch extending in the longitudinal direction, processing of the barrel is simplified and assemblability is improved. This has the effect of improving the cost and lowering the cost in each step.
[Brief description of the drawings]
FIG. 1 is a sectional view showing a rod-shaped member feeding device of the present invention.
FIG. 2 is a cross-sectional view taken along line AA of FIG.
FIG. 3 is a sectional view taken along line BB of FIG. 1;
FIG. 4 is a plan view showing a rod-shaped member feeding device of the present invention.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 shaft cylinder 1A spiral groove 1B of shaft cylinder 1 cut groove 2 of shaft cylinder 1 rod-shaped member holder 2D holder 5 of rod-shaped member holder 2 operation member 5B projection of operation member 5
