JP2540978Y2 - Rod feeding device - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for feeding a rod-shaped material such as a rubber-like rubber eraser, a lipstick, a correction stick, a writing lead, a path, etc., from a tip end of a cylindrical body by a rotating operation.

[0002]

2. Description of the Related Art A conventional rod feeding device will be described with reference to FIG. 1, in which a spiral groove 2 is provided on the inner surface of a cylindrical body 1 and a center shaft 4 provided with a guide groove 3 in the cylindrical body 1. It is inserted and locked by the tip stopper portion 5 and the rear locking piece 6, and the rod-shaped object receiving base 7 is inserted into the center shaft 4, and is engaged with the guide groove 3 and the spiral groove 2 on the outer surface of the rod-shaped object receiving base 7. Projection 14 is provided.

When the center shaft 4 is rotated in the above configuration, the projection 14 of the bar-shaped object receiving base 7 is engaged with the guide groove 3 of the center shaft 4 and the spiral groove 2 of the cylindrical body 1, so that the rod-shaped object receiving base 7 is moved. The rod 8 is moved along the guide groove 3 while rotating along the spiral groove 2, and the rod 8 held by the rod receiving table 7 protrudes and retracts from the tip of the cylindrical body 1 according to the rotation direction.

[0004]

In the conventional example described above, when the rod-shaped object 8 is reduced by use and the rod-shaped object receiving table 7 comes into contact with the distal end stopper 5, the rod-shaped object 8 can no longer protrude. It becomes a residual rod. In order to remove the remaining bar from the bar receiver 7, there is a problem that the bar must be removed using a tool such as a pin.

[0005]

In order to solve the above-mentioned problems, the present invention provides a spiral groove 2 on the inner surface of a cylindrical body 1 and a guide groove 3 on the cylindrical body 1 as shown in FIG. The center shaft 4 is inserted and locked by the tip stopper 5 and the rear locking piece 6,
The rod-shaped object receiving base 7 is inserted into the central shaft 4, and the rod-shaped object 8 can be protruded and retracted from the tip of the cylindrical body 1 by rotating the central shaft 4 so as to move the rod-shaped object receiving base 7 in the direction of the guide groove 3. In the rod feeding device, a rod receiving table 7 is provided in the center shaft 4.
The through-hole 10 provided in the bottom 9 of the head is loosely inserted into the front end locking portion 11.
And an inner shaft 12 for locking the inner shaft 1
An elastic body 13 for pressing the bottom portion 9 is provided in 2, and a projection 14 for engaging the guide groove 3 and the spiral groove 2 is provided on the outer surface of the inner shaft 12.

[0006]

When the shaft 4 is rotated, the projection 14 of the shaft 12 is engaged with the guide groove 3 of the shaft 4 and the helical groove 2 of the cylindrical body 1. Further, the rod-shaped object receiving base 7 fixed by the elastic body 13 is moved along the guide groove 3 while rotating along the spiral groove 2, and the rod-shaped object 8 held by the rod-shaped object receiving base 7 is changed according to the rotation direction. It will come and go from the tip of the cylindrical body 1.

The rod-shaped object 8 is reduced by use, and the rod-shaped object
Comes into contact with the tip stopper 5, and the rod 8
Cannot protrude, resulting in a remaining rod. When the center shaft 4 is further rotated, only the inner shaft 12 moves further against the elastic force of the elastic body 13, and the remaining bar-like object is pushed by the distal end locking portion 11 of the inner shaft 12, and the inner bar 12 is automatically moved from the bar-like object receiving stand 7. You will be separated and get out.

FIG. 1 is a cross-sectional view showing the configuration of an embodiment of the present invention, and FIG. 2 is a perspective view showing an example of a bar-like object receiving stand according to the present invention. In FIG. 1, a spiral groove 2 is formed on the inner surface of a cylindrical body 1.
A central shaft 4 provided with a guide groove 3 is inserted into the cylindrical body 1 and is locked by a distal end stopper 5 and a rear locking piece 6. A rod-shaped receiving member 7 is inserted into the center shaft 4, and a rod-shaped eraser 8 is held on the rod-receiving member 7.

Two D-shaped through-holes 10 are provided symmetrically around the elastic body receiver 15 in the bottom 9 of the rod-shaped object receiving base 7, and each through-hole 10 is loosely inserted into the center shaft 4 to form an inner surface of the bottom 9. An inner shaft 12 having an elastic piece 17 formed by a cut 16 provided with two tip locking portions 11 to be locked is inserted. A coil spring 13 is housed between the bottom of the inner shaft 12 and the elastic member receiver 15, and a projection 1 engaging with the guide groove 3 and the spiral groove 2 on the outer surface of the inner shaft 12.
4 are provided.

In the above configuration, when the center shaft 4 is rotated,
The projection 14 of the inner shaft 12 is the guide groove 3 of the center shaft 4 and the cylindrical body 1.
Of the inner shaft 12 and the rod-shaped receiving table 7 fixed by the tip locking portion 11 and the coil spring 13 along the guide groove 3 while rotating along the spiral groove 2. The rod-shaped eraser 8 held by the rod-shaped object receiving table 7 is protruded and retracted from the tip of the cylindrical body 1 in accordance with the rotation direction, and the rod-shaped eraser 8 can be used in a protruding state.

When the rod-shaped eraser 8 is reduced by the use and the rod-shaped object receiving table 7 comes into contact with the tip stopper 5, the rod-shaped eraser 8 cannot be protruded any further, resulting in a residual rod-shaped eraser.
When the center shaft 4 is further rotated, only the inner shaft 12 becomes the coil spring 1.
The rod is further moved against the spring force of 3, and the remaining rod-shaped eraser is pushed by the distal end locking portion 11 of the inner shaft 12, and is automatically separated from the rod-shaped object receiving base 7 and pulled out.

[0012]

As described above, according to the present invention, the through hole 10 formed in the bottom 9 of the rod-shaped object receiving base 7 is loosely inserted into the center shaft 4 to lock the front end locking portion 11 on the inner surface of the bottom 9. An inner shaft 12 to be inserted is inserted, an elastic body 13 for pressing the bottom portion 9 is provided in the inner shaft 12, and a projection 14 that engages with the guide groove 3 and the spiral groove 2 is provided on the outer surface of the inner shaft 12. After the rod-shaped object receiving base 7 abuts on the distal end stopper 5, the inner shaft 12 is further moved by rotating the central shaft 4 again against the elastic force of the elastic body 13, and the distal locking portion 11 of the inner shaft 12 is moved. Thus, the remaining bar can be pushed and automatically separated from the bar receiver 7 and extracted.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a configuration of an embodiment of the present invention.

FIG. 2 is a perspective view showing one example of a rod-shaped object receiving stand in the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cylindrical body 2 Spiral groove 3 Guide groove 4 Center shaft 5 Tip stopper part 6 Rear locking piece 7 Bar-shaped object receiving stand 8 Bar-shaped material (rubber-free rubber) 9 Bottom part 10 Through hole 11 Tip locking part 12 Inner axis 13 Elastic body (Coil spring) ) 14 projection 15 elastic body receiver 16 cut 17 elastic body

Claims (2)

(57) [Scope of request for utility model registration] A center shaft (4) having a spiral groove (2) provided on the inner surface of a cylindrical body (1) and a guide groove (3) provided on the cylindrical body (1).
Insert the tip stopper part (5) and rear locking piece (6)
The rod-shaped object receiving base (7) is inserted into the center shaft (4),
By rotating the center shaft (4), the rod-shaped object receiving table (7) is moved in the direction of the guide groove (3) so that the rod-shaped object (8) is moved.
In a rod-like material feeding device in which the rod can be protruded and retracted from the tip of the cylindrical body (1), a through-hole (10) provided in the bottom (9) of the rod-shaped material receiving base (7) is loosely inserted into the center shaft (4). An inner shaft (12) for locking the front end locking portion (11) to the inner surface of the bottom portion (9) is inserted and an elastic body (13) for pressing the bottom portion (9) is inserted into the inner shaft (12). A rod feeding device comprising a projection (14) provided on the outer surface of the inner shaft (12) and engaged with the guide groove (3) and the spiral groove (2). 2. A plurality of through-holes (10) and an elastic body receiver (15) are provided in a bottom portion (9) of a rod-shaped object receiver (7), and an inner shaft (1) is provided.
2) A notch (1) provided with a plurality of tip locking portions (11) for loosely inserting through holes (10) and locking to the inner surface of the bottom portion (9).
2. The rod-shaped material feeding device according to claim 1, wherein the device has an elastic piece (17) according to (6), and an elastic body (13) is provided between the inner shaft (12) and the elastic body receiver (15).