JP2001270284A - Rod-like member delivering device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rod-like member delivering device, with which the number of parts becomes smaller, which can be manufactured at low cost and, at the same time, the assembling properties of which is improved remarkably. SOLUTION: This rod-like member delivering device consists of a barrel 1, an inner tube 2, which is pivotally provided in the barrel 1, and a holding member 3 having a supporting part 3A, with which a rod-like member 4 is held. In addition, the supporting part 3A of the holding member 3, an elastic part 3C and a displacing rod 3F are made into an integral body.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bar-shaped member feeding device for feeding a bar-shaped member such as a black core or color core of a pencil, a crayon, an eraser, a lipstick or an eyebrow of cosmetics.

[0002]

2. Description of the Related Art Heretofore, as a rod-shaped member feeding device of this type, a holding member for holding a rod-shaped member and an exclusion rod separately from the holding member, as described in Japanese Patent Application Laid-Open No. 8-25878, have been proposed. There has been proposed a rod-shaped member feeding device configured to extrude a rod-shaped member held in a holding member in a residual core state by using the excluding bar.

[0003]

Therefore, in the conventional rod-shaped member feeding device, the holding member and the exclusion rod are separately inserted into the inner cylinder, and the projection and the exclusion of the holding member are inserted into the slit or the spiral groove of the inner cylinder. The protrusions of the rod must be inserted, and the protrusion of the holding member and the protrusion of the exclusion rod must be engaged with the concave groove and the spiral groove of the shaft cylinder, respectively. Assembly was also very difficult.

[0004] It is an object of the present invention to provide a rod-shaped member feeding device which solves the above-mentioned problems.

[0005]

In order to achieve the above object, according to the first aspect of the present invention, a shaft cylinder, an inner cylinder rotatably provided on the shaft cylinder, and a support for holding a rod-shaped member are provided. A holding member having a spiral groove formed in the shaft cylinder and a slit extending in the longitudinal direction in the inner cylinder, and a projection provided on a support portion of the holding member that slides in the inner cylinder in the longitudinal direction. The protrusion of the support part is inserted through the slit of the inner cylinder and engages with the spiral groove of the shaft cylinder, and an elastic part that can be extended and contracted in the longitudinal direction is formed integrally with the rear part of the support part, and is integrally formed with the elastic part. The formed rear end projection is inserted into the slit of the inner cylinder and engages with the spiral groove of the shaft cylinder, and an elimination rod that protrudes appropriately forward in the longitudinal direction from the rear end is formed integrally with the rear end. When the rod-shaped member is worn out, the excluding rod moves forward while compressing the elastic portion of the holding member, and The rod-like member held remaining core conditions characterized by eliminating extruded by exclusion rod.

The invention according to claim 2 comprises an inner cylinder rotatably provided on the shaft cylinder and a holding member having a support for holding the rod-shaped member, and extends in the longitudinal direction of the shaft cylinder. Forming a concave groove and a spiral groove penetrating from the inner surface to the outer surface in the inner cylinder, providing a projection on a support portion of a holding member incorporated in the inner cylinder so as to be slidable in the longitudinal direction, and forming a projection on the support portion; Penetrates the helical groove of the inner cylinder and engages with the concave groove of the shaft cylinder, and integrally forms a longitudinally extendable elastic part at the rear of the support part, and is integrally formed with the elastic part. The protrusion at the rear end is inserted into the spiral groove of the inner cylinder and engages with the concave groove of the shaft cylinder, and an excluding rod appropriately protruding forward in the longitudinal direction from the rear end is integrally formed at the rear end, and is formed in a rod shape. When the member is worn out, the elimination rod moves forward while compressing the elastic portion of the holding member, and the residual core held by the support portion is Characterized by eliminating Jo member extruded by exclusion rod.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the rod-shaped member feeding device of the present invention will be described with reference to FIG. The rod-shaped member in the first embodiment will be described as a pencil color core. First, a spiral groove 1A is formed on the inner surface of the barrel 1 having both ends opened, and a concave ridge 1B is formed on the rear inner surface of the barrel 1. The protrusion 2A of the inner cylinder 2 is fitted into the recess 1B of the shaft cylinder 1, and the inner cylinder 2 is rotatably attached to the shaft cylinder 1. The inner cylinder 2 has a slit 2B extending rearward in the longitudinal direction from the front end.
In addition, a plurality of protrusions 2C are formed on the rear outer surface of the inner cylinder 2 as slip stoppers when rotating by holding by hand. A holding member 3 slidable in the longitudinal direction is built in the inner cylinder 2,
A projection 3B formed on the support portion 3A of the holding member 3 is inserted into the slit 2B of the inner cylinder 2 and engages with the spiral groove 1A of the shaft cylinder 1. A spring-like elastic portion 3C that can be extended and contracted in the longitudinal direction is integrally formed at a rear portion of the support portion 3A of the holding member 3, and a rear end portion 3D is integrally formed at a rear portion of the elastic portion 3C. A projection 3E formed on the rear end 3D of the holding member 3
The spiral groove 1A of the shaft cylinder 1 is also inserted through the slit 2B of the inner cylinder 2.
Is engaged. Further, an excluding rod 3F that appropriately protrudes forward in the longitudinal direction is formed integrally with the rear end 3D of the holding member 3. Further, the supporting portion 3A of the holding member 3 has a groove 3 from the front end.
G is formed and divided, and the rear part of the rod-shaped member 4 is held with an appropriate force. At this time, the rear end of the rod-shaped member 4 is in contact with the front end of the exclusion rod 3F. Further, a large-diameter inner hole 1C communicating with the spiral groove 1A is formed in the front inner surface of the shaft cylinder 1, and the projection 5A of the leading tool 5 is press-fitted and fixed to a concave portion 1D formed in the inner hole 1C. A leading tool 5 is fixed to a front portion of the barrel 1. An opening hole 5B through which the bar-shaped member 4 can protrude is formed at the tip of the leading tool 5.

Next, the operation of the rod-shaped member feeding device in the first embodiment will be described. First, in order to pay out the rod-shaped member 4, the shaft cylinder 1 is held with one hand and the rear part of the inner cylinder 2 is held with the other hand, and is rotated in one direction. Then, the projection 3B of the holding member 3 built in the inner cylinder 2 is turned into the slit 2B of the inner cylinder 2.
Is inserted through the holding member 3 according to the rotation of the inner cylinder 2.
Also rotate. When the holding member 3 rotates, the protrusions 3B, 3E
Moves along the spiral groove 1A of the barrel 1, and the rod-shaped member 4 held by the support portion 3A of the holding member 3 also moves forward. Therefore,
The rod-shaped member 4 protrudes from the opening 5B of the tool 5. When the inner cylinder 2 is rotated in the opposite direction, the protrusions 3B and 3E of the holding member 3 retreat along the spiral groove 1A of the shaft cylinder 1, and the rod-shaped member 4 is immersed in the opening 5B of the leading tool 5.

Then, writing is performed by the rod-shaped member 4 protruding from the leading tool 5. At this time, the rod-shaped member 4 has
There is no danger of retreating because it is in contact with F. Rod member 4
When the rod member 4 is worn out, the inner cylinder 2 is sequentially rotated to feed out the rod-shaped member 4. When the rod-shaped member 4 is finally consumed and only the residual core remains, the support portion 3A of the holding member 3 The projection 3B is disengaged from the spiral groove 1A of the barrel 1 and is inserted into the inner hole 1C. Thereafter, the projection 3B of the support 3A is brought into contact with the rear end of the leading tool 5 to stop the advance. Further, when the inner cylinder 2 is rotated, the projection 3E formed on the rear end 3D of the holding member 3 advances along the spiral groove 1A of the shaft cylinder 1, so that the elastic portion 3C of the holding member 3 is compressed. At the same time, the bar-shaped member 4 in the residual core state is pushed out by the exclusion rod 3F. Then, the rod-shaped member 4 is removed from the supporting portion 3A of the holding member 3 and is removed, and the state shown in FIG. 2 is obtained.

Next, when the inner cylinder 2 is rotated in the reverse direction, the holding member 3 rotates together with the inner cylinder 2, and the rear end 3 D of the holding member 3 retreats along the spiral groove 1 A of the shaft cylinder 1. When the elastic portion 3C of the holding member 3 extends to a free length, the holding member 3
3A also retreats with the rear end 3D,
The projection 3B of A engages with the spiral groove 1A of the shaft cylinder 1.

In this state, the rod-shaped member 4 is inserted through the opening 5B of the tool 5, and the rear part of the rod-shaped member 4 is fitted into the support 3A. At this time, the projection 3B of the support portion 3A is
Since it is engaged with A, there is no danger of retreating together with the rod-shaped member 4. Then, when the rear part of the rod-shaped member 4 is appropriately fitted into the support part 3A, the rear end of the rod-shaped member 4 becomes
Abuts the front end of the Further, the rod-shaped member 4 is retracted by rotating the inner cylinder 2 in the reverse direction, and the rod-shaped member 4 is set when the rod-shaped member 4 is retracted from the leading tool 5.

FIGS. 3, 4 and 5 show a second embodiment of the present invention. The same members as those in the first embodiment are denoted by the same reference numerals and description thereof will be omitted. First, a spiral groove 101A is formed on the inner surface of a shaft cylinder 101 having both ends opened, and a concave stripe 101B is formed on a rear portion of the shaft cylinder 101. The rear end portion 102D of the inner cylinder 102 is divided by a cut groove 102E, and a slit 102B extending frontward in the longitudinal direction from the cut groove 102E is formed facing the slit 102B. The rear end portion 102D of the inner cylinder 102
Is opened, the holding member 103 is inserted, and the protrusion 103B formed on the support portion 103A of the holding member 103 and the rear end portion 103D
Are inserted through the slits 102B of the inner cylinder 102 outward.

In this state, the inner cylinder 102 is inserted from behind the shaft cylinder 101, and the protrusions 103B,
3E is engaged with the spiral groove 101A of the shaft cylinder 101. Further, the rear end portion 1 of the inner cylinder 102 is
02D is fitted into the shaft cylinder 101F.
, The inner cylinder 102 is rotatably mounted. Furthermore, the inner cylinder 10
The operation member 6 is press-fitted and fixed to the rear end portion 102D of the second member 2. A plurality of anti-slip projections 6A are formed on the outer surface of the operation member 6. Further, a leading tool 5 is fixed to a front portion of the shaft cylinder 101. Further, the rear portion of the bar-shaped member 4 is held by the support portion 103A of the holding member 103 with an appropriate holding force, and the rear end of the holding member 103 is stored in contact with the exclusion bar 103F.

Next, the operation of the rod-shaped member feeding device according to the second embodiment will be described. First, when the operation member 6 is rotated in one direction, the inner cylinder 102 is rotated together with the operation member 6. Then, the holding member 103 built in the inner cylinder 102 also rotates, and the protrusions 103B and 103E of the holding member 103
01 advance along the spiral groove 101A. Therefore, the rod-shaped member 4 can protrude from the opening 5B of the leading tool 5 to perform writing.

When the rod-shaped member 4 is worn out and only the residual core remains, the supporting portion 103A of the holding member 103
Abuts on the front edge 102G of the slit 102B of the inner cylinder 102, and the advance of the support portion 103A is stopped. When the operation member 6 is further rotated, the holding member 103
The projection 103E formed on the rear end portion 103D is
1 along the spiral groove 101A, the holding member 10
The third elastic portion 103C is compressed. At the same time, the rod-shaped member 4 in the residual core state is pushed out by the excluding rod 103F.
Then, the rod-shaped member 4 becomes the support portion 103A of the holding member 103.
It is removed further and becomes the state shown in FIG.

Next, the operating member 6 is rotated in the reverse direction to retreat the holding member 103, and the rod-shaped member 4 is inserted through the opening 5B of the leading tool 5 with the elastic portion 103C extended to a free length. Fit into 103A. Then, when the rear part of the rod-shaped member 4 is appropriately fitted into the support part 103A, the rear end of the rod-shaped member 4 comes into contact with the front end of the exclusion rod 103F. Further, the operation member 6
Is rotated in the reverse direction to retreat the bar-shaped member 4, and when the bar-shaped member 4 is immersed from the leading tool 5, the bar-shaped member 4 is set.

FIGS. 7 and 8 show a third embodiment of the present invention. The same members as those in the first embodiment are denoted by the same reference numerals and description thereof will be omitted. First, a shaft cylinder 20 having both ends opened
A plurality of concave grooves 201E extending in the longitudinal direction are formed at equal intervals on the inner surface of one. The protruding ridge 106B of the operating member 106 is rotatably fitted into and attached to the concave ridge 201B formed on the rear inner surface of the shaft cylinder 201.

The operation member 106 includes a metal inner cylinder 20.
2, a rear portion 202H is press-fitted and fixed, and a spiral groove 202I penetrating from the inner surface to the outer surface is formed in the inner cylinder 202 to form a coil spring.

Further, from the front of the barrel 201, the holding member 10
The third protrusions 103B and 103E are engaged with the concave grooves 201E and inserted, and the protrusions 103B and 103E of the holding member 103 are inserted into the spiral grooves 202I of the inner cylinder 202. And
When the operation member 106 is rotated in the reverse direction, the protrusions 103B and 103E of the holding member 103 are retracted along the spiral groove 202I of the inner cylinder 202, and the holding member 103 is built in the shaft cylinder 201.

The protrusion 103B of the support portion 103A of the holding member 103 and the protrusion 103E of the rear end portion 103D are connected to the inner cylinder 20.
After the insertion into the second spiral groove 202I, the rear part of the rod-shaped member 4 is inserted into the support part 103A of the holding member 103, and the rear end of the rod-shaped member 4 is brought into contact with the exclusion rod 103F.

Then, when the operating member 106 is further rotated in the reverse direction to insert the bar-shaped member 4 into the leading tool 5 fixed to the front portion of the barrel 201, the bar-shaped member 4 is set.

Next, when the operating member 106 is rotated so that the bar-shaped member 4 is protruded from the leading tool 5, writing with the bar-shaped member 4 can be performed.

When the rod-shaped member 4 is worn out and only the residual core remains, the protrusion 103B formed on the support portion 103A of the holding member 103 comes into contact with the rear end of the leading tool 5 to support the rod. The advance of the portion 103A is stopped. When the operating member 106 is further rotated, the rear end 1 of the holding member 103 is rotated.
Since the protrusion 103E formed on 03D advances along the spiral groove 202I of the inner cylinder 202, the elastic portion 103C of the holding member 103 is compressed. At the same time, the rod-shaped member 4 in the residual core state is pushed out by the excluding rod 103F.

[0024]

According to the rod-shaped member feeding device of the present invention described above, since the supporting portion of the holding member, the elastic portion, and the exclusion rod are integrally formed, the number of parts is reduced, the manufacturing can be performed at low cost, and the assembling can be performed. This has the effect of dramatically improving the performance.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a first embodiment of a rod-shaped member feeding device according to the present invention.

FIG. 2 is a cross-sectional view showing a state in which a rod-like member in a residual core state is removed in the rod-like member feeding device of the first embodiment.

FIG. 3 is a sectional view showing a second embodiment of the rod-shaped member feeding device of the present invention.

FIG. 4 is a sectional view taken along line AA of FIG. 3;

FIG. 5 is a sectional view taken along line BB of FIG. 3;

FIG. 6 is a cross-sectional view showing a state in which a rod-shaped member in a residual core state is removed from the rod-shaped member feeding device of the second embodiment.

FIG. 7 is a sectional view showing a third embodiment of the rod-shaped member feeding device of the present invention.

FIG. 8 is a sectional view taken along line AA of FIG. 7;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 shaft cylinder 1A spiral groove of shaft cylinder 1 2 inner cylinder 2B slit of inner cylinder 2 3 holding member 3A support portion of holding member 3 3B projection of holding member 3 3C elastic member of holding member 3 3D rear end of holding member 3 3E Projection of the holding member 3 3F Exclusion rod of the holding member 3 4 Bar-shaped member 101 Shaft tube 101A Spiral groove 102 of the shaft tube 102 Inner tube 102B Slit of the inner tube 102 103 Holding member 103A Support portion of the holding member 103 103B of the holding member 103 Projection 103C Elastic body of the holding member 103 103D Rear end of the holding member 103 103E Projection of the holding member 103 103F Exclusion rod of the holding member 103 201 Shaft tube 201E Depressed groove of the shaft tube 201 202 Inner tube 202I Spiral groove of the inner tube 202

Claims (3)

[Claims] 1. A shaft cylinder, an inner cylinder rotatably provided on the shaft cylinder, and a holding member having a support portion for holding a rod-shaped member. A slit extending in the longitudinal direction is formed, and a projection is provided on the support portion of the holding member that slides in the longitudinal direction in the inner cylinder, and the projection of the support portion is inserted into the slit of the inner cylinder and into the spiral groove of the shaft cylinder. An elastic portion that engages and can extend and contract in the longitudinal direction is integrally formed at a rear portion of the support portion, and a projection at a rear end portion integrally formed with the elastic portion is inserted through a slit of the inner cylinder to form a shaft cylinder. In addition to engaging with the spiral groove of the above, an excluding rod appropriately protruding forward in the longitudinal direction from the rear end is formed integrally with the rear end, and when the rod-shaped member is worn, the elastic portion of the holding member is compressed. While the expulsion rod moves forward, the reject rod pushes out the bar-shaped member held in the supporting portion and is eliminated. A rod-shaped member feeding device, characterized in that: 2. A shaft cylinder, an inner cylinder rotatably provided on the shaft cylinder, and a holding member having a support for holding the rod-shaped member, and a groove extending in a longitudinal direction is formed in the shaft cylinder. And a spiral groove penetrating from the inner surface to the outer surface is formed in the inner cylinder, and a projection is provided on a support portion of a holding member incorporated slidably in the longitudinal direction in the inner cylinder, and the projection of the support portion is formed on the inner cylinder. The elastic groove is inserted into the spiral groove to engage with the concave groove of the shaft cylinder, and an elastic portion which can be extended and contracted in the longitudinal direction is integrally formed at the rear portion of the support portion, and a rear end portion integrally formed with the elastic portion is formed. The projection penetrates the helical groove of the inner cylinder and engages with the concave groove of the shaft cylinder, and an exclusion rod appropriately protruding longitudinally forward from the rear end is integrally formed at the rear end, so that the rod-shaped member is consumed. In this case, the excluding rod moves forward while compressing the elastic portion of the holding member, and the rod-shaped member held in the supporting portion in the residual core state is changed to the excluding rod. A rod-shaped member feeding device, which is further extruded and removed. 3. The rod-shaped member feeding device according to claim 1, wherein the elastic portion of the holding member is formed in a spring shape.