JP2606545Y2 - Stick feeding tool - Google Patents

Description

[Detailed description of the invention]

[0001]

[Industrial applications] This invention is based on the black and color pencils of pencils,
The present invention relates to a rod-like material dispensing device capable of dispensing a rod-like material gradually consumed by using a crayon core, an eraser, a cosmetic lipstick, an eyebrow core, or the like as needed.

[0002]

2. Description of the Related Art Conventionally, as this kind of rod-shaped object feeding device, for example, a color core feeding device of a color pencil as shown in FIG. 10 has been proposed. This writing instrument has a structure in which a mechanism composed of a spiral wire 3 attached to the tip of a rotary operation unit 2 and a color core holder 4 mounted in the wire 3 is rotatably fitted in the outer cylinder 1. Is adopted. Reference numeral 5 in the drawing denotes a leading tool that is screwed into a thread groove 1a formed on the inner peripheral surface of the leading end of the outer cylinder 1.

In this color core feeding device, when the rotary operation part 2 is rotated in one direction, the spiral wire 3 is also rotated, but the rotation preventing projection 4a of the color core holder 4 inserted in the spiral wire 3 is provided. Are locked in the guide grooves 1b formed in the inner wall of the outer cylinder 1 in the axial direction, so that the color core holder 4 is prevented from rotating. However, the color core holder 4 has three engaging members 4b, which are used to form the spiral wire 3b.
, And moves in the axial direction along the spiral wire 3. As a result, the color core attached to the tip of the color core holder 4 is gradually fed out from the opening at the tip of the leading tool 5 of the outer cylinder 1. When the rotary operation unit 2 is turned in the opposite direction, the color core is moved in the retreating direction.

[0004] In the conventional color-core feeding device configured as described above, the leading tool 5 is screwed with the guide groove 1b formed in the axial direction for the engagement of the detent 4a of the holder 4 for preventing rotation. Screw groove 1a and an annular groove 1c for allowing the annular ridge 2a of the rotary operation portion 2 to rotatably engage with the outer cylinder 1 must be formed on the inner peripheral surface of the outer cylinder 1. Was. For this reason, the structure becomes complicated and it takes time and effort to assemble. Further, since the spiral wire 3 is used, the spiral pitch tends to vary, and the operability of feeding out the rod-like material is not good.

[0005]

The present invention has solved the above-mentioned drawbacks of the conventional rod feeding device, has a simple structure, is extremely easy to assemble, has a good feeding operation, and has various characteristics. It is an object of the present invention to provide a rod-shaped feeding device that can be used with different diameters.

[0006]

According to the present invention, there is provided, in accordance with the present invention, a rod-like material dispensing tool for sequentially dispensing a rod-like material such as a writing lead by rotating operation, and having openings at both ends. And an outer cylinder having spiral guide means formed therein, and an inner cylinder having a guide slit formed in the outer cylinder rotatably and having a guide slit formed in the axial direction and a rotary operation portion provided at a rear portion, A rod-shaped holder fitted in the inner cylinder and guided by the spiral guide means by an operation of a rotation operation part of the inner cylinder so that the guide slit is movable in the axial direction; and the inner cylinder is the outer cylinder in the stick-shaped material propelling device comprised of a rotatably and engaging means for engaging the front
The cylindrical body of the rod holder is cut out in the axial direction and the section C
Ring-shaped rod feeding device, or the rod shape
The object holder can hold rod-shaped objects with different diameters
The inner diameter gradually decreases from the front to the rear
Thus, a rod-shaped material feeding tool having a well-formed rod-shaped material receiving portion is obtained.

[0007]

When the rotary operation unit such as a clip provided at the rear of the inner cylinder is rotated in one direction, the projection of the rod-like object holder fitted into the inner cylinder is rotated with the rotation of the inner cylinder. Guided according to the formed spiral groove, this rod holder
The rod is gradually pushed forward by sliding inside the slit formed in the inner cylinder and moving forward.
Further, when the rotation operation section is turned in the opposite direction, the rod-like object is retracted and stored in the outer cylinder.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIGS. 1 to 5 show a first embodiment of the present invention, in which a rod-shaped object such as a color core of a pencil is accommodated in an outer cylinder 1 having openings at both ends thereof. Has an inner cylinder 6 inserted through the rear opening. A top screw 8 is formed at the top of the inner cylinder 6, and a part of the top screw 8 extends forward of the outer cylinder 1 to form a clip 9.

Further, a notch 6a widened toward the front end is formed at the front end of the inner cylinder 6 as shown in FIG. A protruding stopper portion 6b whose diameter becomes gradually smaller is provided. As shown in FIG. 2, a guide slit 6c is further formed on the inner cylinder 6 so as to face the axial direction.

A rod holder 7 for holding a rod is mounted movably in the axial direction in these slits 6c formed to face the inner cylinder 6 in the axial direction. To describe this point in detail, the stick-shaped piece holder 7 As clearly shown in Figure 2, has a A over arm portion 7b that faces the front of the tube main body 7a, and the outer surface thereof arm portions 7b Are formed with projections 7c so as to fit into spiral grooves 1d formed on the inner peripheral surface of the outer cylinder 1.

[0011] The bar-shaped object feeding device having the above-mentioned structure is easily assembled in the following order. First, the arm portion 7 of the rod holder 7 is made using a cut portion 6a formed at the tip of the inner cylinder 6.
b is pushed backward until the arm 7b engages with the slit 6c of the inner cylinder 6 from the cylinder body 7a side of the rod holder 7 so as to engage with the slit 6c.

Next, these mechanisms are inserted and assembled through the rear opening of the outer cylinder 1. In this case, the stopper 6b having a large diameter is formed at the end of the inner cylinder 6 as described above. However, since the notch 6a is provided, the periphery of the stopper 6b comes into contact with the inner wall of the outer cylinder 1. However, since the gap between the cut portions 6a becomes a relief and the inner cylinders 6 at the stopper portions 6b are bent inward, the insertion and assembly can be performed smoothly.

Further, when the inner cylinder 6 is sufficiently inserted into the outer cylinder 1, the stopper 6 b projects from the tip of the outer cylinder 1. At this time, the notch 6a pushed inwardly expands outward and returns to the original position, so that the shoulder at the rear end of the stopper 6b is locked to the tip of the outer cylinder 1. As a result, inner cylinder 6
Is rotatable with respect to the outer cylinder 1 but securely engages with the outer cylinder 1 so that it does not fall off from the outer cylinder 1 thereafter.

In using the rod-like material feeding tool, the rod-like material can be easily inserted and easily attached to the rod-like material holder 7 by inserting the rod-like material into the inner cylinder 6 from the distal end opening of the outer cylinder 1. . In particular, by inserting the rod-shaped object into the inner cylinder 6, the inner cylinder 6 does not bend inward, so that the stopper 6b of the inner cylinder 6 and the outer cylinder 1 are more reliably locked.

Next, the operation of the rod-shaped object feeding device according to this embodiment will be described. At the time of use, in order to feed out the rod-shaped material, the top screw 8 or the clip 9 provided at the rear end of the inner cylinder 6 is gripped and rotated in one direction. Then, as the inner cylinder 6 rotates, the projection 7c of the rod holder 7 is guided by the spiral groove 1d formed in the inner wall of the outer cylinder 1, and
Further, the rod-shaped object holder 7 slides axially in the slit 6c formed in the inner cylinder 6 by the arm portion 7b, moves forward, and pushes the rod-shaped object forward little by little.

After use, if the top screw 8 or the clip 9 is rotated in the opposite direction to the above, the bar-like object is retracted and stored in the outer cylinder 1 by the reverse operation. In addition, when the rod-shaped material is worn out and does not sufficiently project from the tip of the outer cylinder 1, the inner cylinder 6 is rotated by the top screw portion 8 or the like,
The rod-shaped object holder 7 may be moved to the tip of the outer cylinder 1 and replaced with a new rod-shaped object.

The arm 7b of the rod holder 7 is designed to be slightly widened outward, and although not shown, the inner diameter near the tip of the outer cylinder 1 and the spiral groove 1d can be slightly deepened. For example, it is easy to take out the remaining old rod-like material and to assemble a new rod-like material into the rod-like material holder 7. In addition, the rod holder 7 is forcibly unaware that the rod-shaped object holder 7 has moved to the distal end of the outer cylinder 1.
Even if it is rotated, the outer cylinder 1 is not damaged due to idling. Of course, the inner diameter near the rear end of the outer cylinder 1 and the spiral groove 1d can be slightly deepened to obtain an effect of preventing breakage.

FIG. 6 shows a rod feeding device according to a second embodiment of the present invention. The second embodiment differs from the first embodiment in that the protruding stoppers 6b at the front end of the inner cylinder 6 are eliminated, and the inner cylinder 6 is replaced with a corresponding inner cylinder. An annular projection 6d engaging with the engagement groove 1e formed on the wall surface is provided near the rotation operation portion 10 of the inner cylinder 6 to prevent the inner cylinder 6 from falling off the outer cylinder 1 after assembling.

Another difference is that the rotary operation unit 10 of this embodiment eliminates the clip 9 of the first embodiment, makes the top screw 8 longer, and knurls the peripheral surface thereof by knurling.
0a is formed. When formed in this manner, since there is no clip 9 in the first embodiment, it is possible to put out, for example, 12 kinds of color core feeding tools in a tin case or the like in a compact state and sell them in dozens.

FIG. 7 shows a third embodiment of the present invention, which is designed so that a rod having a small diameter can be used without changing the diameter of the outer cylinder 1 and the inner cylinder 6. An auxiliary tool 11 having a small-diameter opening that fits into a small-diameter rod-shaped object is press-fitted inside the tip.

FIG. 8 shows a fourth embodiment of the present invention. In the drawing, the distal end of the inner cylinder 6 is formed to protrude longer from the distal end opening of the outer cylinder 1 than in each of the above-mentioned embodiments, and is engaged. It is a part 1f, and the engagement tool 12 is attached to this part. As a result, after the inner cylinder 6 is assembled into the outer cylinder 1, the inner cylinder 6 can be rotated integrally with the engagement tool 12, so that the inner cylinder 6 does not fall off the outer cylinder 1. It is to be noted that a rod having a small diameter can be used by changing the inner diameter of the engagement tool 12 as in the third embodiment.

FIG. 9 shows a fifth embodiment of the present invention, in which a rod-shaped object holder 7 has a C-shaped cross section formed by forming a notch 7d in which a cylindrical main body 7a is cut out in the axial direction. I have. The bar-shaped holder 7 having such a notch 7d produces many effects. That is, even if there is no notch 6a at the front end of the inner cylinder 6 in the first embodiment, the bar-shaped object holder 7 is formed in a C-ring cross section by the notch 7d. Similarly, the rod-shaped holder 7 can be easily pushed through the opening at the end of the inner cylinder 6. Further, even when the inner cylinder 6 is further rotated when the inner cylinder 6 is at the uppermost position or the lowermost position with respect to the outer cylinder 1, that is, even if an excessive force is applied, the gap of the notch 7d is narrowed and the rod-shaped holder 7 is Since the diameter of the outer cylinder 1 becomes small, the rod-shaped object holder 7 does not run idle and the outer cylinder 1 and the like are not damaged. In addition, even if there is a variation in the diameter of the rod-shaped object, the notch 7 allows the rod-shaped object to be held even if it has a somewhat larger diameter. Easy.

Further, on the inner wall surface of the cylindrical main body 7a of the rod-shaped holder 7a, because the inner diameter to form a stick-shaped material receiving part 7 e which are formed smaller stepwise from the front towards the rear, the illustrated If such an engagement assisting tip 13 is used, it is possible to hold rods having different diameters without replacing other parts. That is, the engagement auxiliary tip 13 can also hold a rod-shaped object. That is, the engagement auxiliary tip 13 has an opening equal to the inner diameter of the rod receiving portion 7e in the second stage from the front of the rod holder 7, that is, an opening equal to the diameter of the rod actually used, and An inclined surface 13 whose front inner wall is inclined in the axial direction in order to guide the rod outward.
a.

[0024]

According to the invention, since the construction is as described above, the structure of the rod-shaped object is simple and extremely easy to assemble. An extension tool can be provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a first embodiment of the present invention, in which a part of a rod feeding device is omitted.

FIG. 2 is an exploded perspective view of a front portion of an inner cylinder and a rod holder in FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a bottom view of the rod-shaped object feeding device of FIG. 1;

FIG. 5 is a cross-sectional view in which a part of the rod-shaped object feeding device of FIG. 1 is omitted.

FIG. 6 is a cross-sectional view of a second embodiment of the present invention, in which a part of a rod feeding device is omitted.

FIG. 7 is a cross-sectional view of a third embodiment of the present invention, in which a part of a rod feeding device is omitted.

FIG. 8 is a cross-sectional view of a fourth embodiment of the present invention, in which a part of the rod-shaped object feeding device is omitted.

FIG. 9 is a cross-sectional view of a fifth embodiment of the present invention, in which a part of a rod-like material feeding device is omitted.

FIG. 10 is an explanatory view in which a part of a conventional color pencil lead is omitted.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outer cylinder 1a Helical groove (spiral guide means) 6 Inner cylinder 6b Stopper part (engagement means) 6c Guide slit 7 Rod holder 8 Top screw part (rotation operation part)

──────────────────────────────────────────────────続 き Continuation of the front page (56) References Japanese Utility Model Sho-59-118581 (JP, U) Japanese Utility Model 1-78584 (JP, U) Japanese Utility Model 1-80393 (JP, U) Japanese Utility Model 3- 26597 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B43K 23/016 A45D 40/06 B43L 19/00

Claims (2)

(57) [Scope of request for utility model registration] 1. A rod feeding device for sequentially feeding a rod such as a writing lead by a rotation operation, comprising: an outer cylinder having openings at both ends and having spiral guide means formed therein; An inner cylinder having a guide slit formed in the axial direction and a rotation operation unit provided at a rear portion, and being fitted in the inner cylinder and being operated by operating the rotation operation unit of the inner cylinder. a stick-shaped material holder is guided in the spiral guide means is movable to the guide slit in the axial direction, and the engaging means for the inner cylinder is rotatably engaged to the outer tube
In the stick-shaped material propelling device comprising configured pressurized et al, the rod
The cylindrical body of the object holder is cut out in the axial direction
A bar-shaped object dispensing tool characterized in that it is formed in a rod shape. 2. A rod-like object such as a writing lead is rotated by a rotating operation.
This is a rod-like material dispensing tool that sequentially dispenses, with openings at both ends.
An outer cylinder having spiral guide means formed therein and
A guide rotatably provided in the outer cylinder and formed in the axial direction
Inner cylinder having a slit and a rotary operation unit provided at the rear
Operating the rotation operating portion of the inner cylinder by being fitted into the inner cylinder.
The guide slot is guided by the spiral guide means.
A rod-shaped object holder that allows the
Engagement means for rotatably engaging the inner cylinder with the outer cylinder;
A rod-shaped feeding device comprising:
The object holder can hold rods with different diameters
The inner diameter gradually decreases from the front to the rear as
A bar having a bar-shaped object receiving portion formed therein
An object feeding tool.