JP3041992U - Eraser holder- - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To provide an eraser holder capable of visually recognizing the remaining amount of an eraser stored in a barrel from the outside. SOLUTION: At least a tip end portion (lead shaft 2) of a barrel 1 is formed of a transparent material so that an eraser E housed inside can be seen from the outside. Further, in the eraser holder provided with the grip member 4, the center cylinder 5 and the chuck ring 6, these members are also made of a transparent material as necessary so that the remaining amount of the eraser can be visually recognized from the outside. .

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an eraser holder for feeding and using a rod-shaped eraser housed inside a shaft cylinder, and more particularly to an eraser holder for easily recognizing the remaining amount of the eraser.

[0002]

[Prior art]

 As a conventional eraser holder, for example, as described in Japanese Utility Model Laid-Open No. 1-132792, by sliding a slider with respect to the barrel, the eraser can be fed from the tip of the barrel, and As described in Japanese Patent Publication No. 2-94195, by moving the middle barrel housed in the barrel against the urging force of the elastic body with respect to the barrel, an eraser is provided from the tip of the barrel. It has been proposed that you can get out.

[0003]

[Problems to be solved by the device]

 However, since the shaft cylinder of the conventional eraser holder is made of an opaque material, the remaining amount of the eraser housed inside cannot be visually recognized from the outside. Also, for design reasons, there is a commercially available eraser holder in which the rear end side (rear axle) of the barrel is made of a transparent material and the eraser inside can be visually confirmed. However, even in this eraser holder, since the tip end side (leading shaft) of the barrel is made of an opaque material, the remaining amount of the eraser remaining cannot be visually confirmed from the outside. Therefore, the user noticed that the eraser housed in the eraser holder had to be replaced with a new eraser only when it came off from the eraser holding section or the chuck section. Therefore, when using the eraser holder in academic tests, etc., the user had to confirm not only that the pencil case had an eraser holder but also the remaining amount of the eraser. Alternatively, a replacement eraser had to be available at all times so that if the eraser was exhausted, it could be replaced immediately. If these are neglected and the eraser in the eraser holder is exhausted, the eraser cannot be used, which may cause a serious problem that the eraser cannot be used in academic tests and the like.

The present invention has been made to solve the above-described inconvenience, and an object of the present invention is to provide an eraser holder that allows the remaining amount of the eraser to be easily visually recognized from the outside.

[0005]

[Means for Solving the Problems]

 The eraser holder according to the present invention makes the eraser housed inside visible from the outside. That is, the eraser holder according to the present invention is an eraser holder capable of feeding out the eraser from the tip of the barrel, and at least the tip of the barrel has a light-transmitting property so that the remaining amount of the eraser can be visually confirmed. The basic structure is that this is done. Here, it is preferable that at least the tip portion of the barrel is formed of a transparent material so that at least the tip portion of the barrel has a light transmitting property.

The eraser holder according to the present invention is an eraser holder capable of feeding out the eraser from the tip of the barrel, and the center barrel having a chuck portion for holding the eraser and the eraser holder are located outside the chuck portion. An eraser is provided from the tip of the shaft cylinder by including the chuck ring provided and the shaft cylinder in which the center cylinder and the elastic body are housed, and by moving the center cylinder against the biasing force of the elastic body. It is an eraser holder capable of feeding out, and has a basic configuration in which at least the tip end portions of the shaft cylinder and the middle shaft cylinder are made transparent so that the remaining amount of the eraser can be visually confirmed. . Here, it is preferable that at least the tip end portions of the shaft cylinder and the center rod cylinder are formed of a transparent material so that at least the tip end portions of the shaft barrel and the center rod cylinder have translucency.

The eraser holder according to the present invention is an eraser holder capable of feeding out an eraser from the tip of a barrel, and a center barrel having a chuck portion for gripping the eraser and an eraser holder located outside the chuck portion. A chuck ring provided, and a shaft cylinder composed of a front shaft and a rear shaft for accommodating the inner cylinder and the elastic body, and moving the inner cylinder against the biasing force of the elastic body. This is an eraser holder that allows the eraser to be fed out from the tip of the leading shaft, and the leading shaft and the above-mentioned middle barrel are made transparent so that the remaining amount of the eraser can be visually confirmed. It has a basic configuration.

Here, it is preferable that the front shaft and the center cylinder are made of a transparent material in order to allow the front shaft and the center cylinder to be transparent. Further, it is preferable to dispose a translucent grip member outside the barrel or outside the front shaft. Further, it is preferable that the chuck ring has a light-transmitting property. The eraser is colored and a removable cap is provided at the rear end portion of the barrel or a removable knock cap is provided at the rear end portion of the center barrel, and the cap or knock cap is the same as described above. It is preferably the same color as the eraser.

Further, according to the eraser holder of the present invention, in the eraser holder capable of feeding out the eraser from the tip of the barrel, at least the tip portion of the barrel is transparent so that the remaining amount of the eraser can be visually confirmed. An eraser holder having a light property, comprising an axial slit formed in the barrel, an engaging portion provided in the slit, and a locking protrusion engaging with the engaging portion. It has a slider which is associated with the rear end portion of the eraser, and has a basic structure in which the eraser is fed out from the tip of the barrel by moving the slider along the slit. Here, it is preferable that the slider and the eraser have the same color.

Since the eraser holder according to the present invention is configured as described above, the remaining amount of the eraser inside the barrel can be easily confirmed. In particular, since at least the tip of the barrel has a light-transmitting property, it is possible to accurately confirm the remaining amount of the eraser that has run short. In addition, since at least the tip portion of the barrel and the center barrel, or the front axle and the center barrel are made transparent, the remaining amount of the eraser remaining exactly can be confirmed exactly as in the case above. can do. Also, in the case of the one having a chuck ring, since the chuck ring has a light-transmitting property, it is possible to accurately check the remaining amount of the eraser, which is low, without being obstructed by the chuck ring. .

Further, since the translucent grip member is arranged outside the shaft cylinder or outside the front shaft, the remaining amount of the eraser, which is low, is not disturbed by the grip member. , Can be confirmed accurately. As a result, it is possible to replace the eraser with a new one at the optimum time, and there is no problem in use. Furthermore, since the eraser is colored, it is possible to easily check the remaining amount of the eraser. Moreover, since the eraser is formed in the same color as the slider, the cap and the knock cap, it looks very good and the commercial value can be increased.

[0012]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. 1 is a vertical sectional view showing an eraser holder according to a first embodiment of the present invention, FIG. 2 is an enlarged vertical sectional view of a front shaft shown in FIG. 1, and FIG. 3 is a center cylinder and a chuck ring shown in FIG. It is a perspective view of the assembled state.

In these drawings, reference numeral 1 denotes a barrel, which is made up of a front shaft 2 made of transparent plastic at the front part and a transparent plastic at the rear part made of transparent plastic. It is configured by screwing with the shaft 3. As shown in FIG. 2, a mounting portion 2a for mounting a grip member 4 to be described later is provided on the outer side of the front shaft 2, and the side wall on which the mounting portion 2a is formed is engaged at an interval of 180 degrees. The stop hole 2b is formed. A male screw 2c is provided on the side wall on the rear side of the mounting portion 2a, and on the side wall further on the rear side of the male screw 2c, the male screw 2c is aligned on the extension line of the engaging hole 2b and the engaging hole 2b is formed. An engagement hole 2d formed to be longer than the axial direction is arranged. At the rear end of the front shaft 2, there is provided a notch 2e aligned on the extension line of the engaging hole 2b and the engaging hole 2d.

Further, inside the front end of the front shaft 2, a holding portion 2f for holding the rod-shaped eraser E extending toward the rear end side, a holding portion 2f for holding the eraser E, and a chuck portion 5a described later are provided. Two holding portions 2g for forcibly expanding are provided alternately in the circumferential direction. The holding portion 2g extends rearward of the holding portion 2f. Further, the rear shaft 3 is provided with a female screw 3a to which a male screw 2c is screwed on the inner side of the tip.

Reference numeral 4 in the drawing denotes a grip member to be mounted on the mounting portion 2a, and this grip member 4 is made of transparent and soft plastic. Further, reference numeral 5 denotes a center rod cylinder slidably disposed in the shaft barrel 1, and the center rod cylinder 5 is made of transparent plastic. As shown in FIG. 3, the central barrel 5 is provided with a chuck portion 5a for holding the eraser E at the tip thereof, and a convex portion 5b protruding at an interval of 180 degrees to the rear side of the chuck portion 5a. And two concave portions 5c formed in a position between the convex portions 5b. Further, on the side wall on the rear side of the recess 5c, there are provided two upstanding projections 5e which are surrounded by a notch 5d opened downward in a U shape and project into the engagement hole 2d.

Reference numeral 6 denotes a chuck ring arranged in the barrel 1, which is made of a transparent plastic and the chuck ring 6 is loosely fitted in the chuck portion 5a. At the rear end of the chuck ring 6, as shown in FIG. 3, a convex portion 6a protruding upward corresponding to the two concave portions 5c and a concave portion concave downward corresponding to the two convex portions 5b. 6b, and the side wall thereof is provided with an upright projection 6d which is surrounded by a notch 6c opened downward in a U shape and which projects into the locking hole 2b.

Reference numeral 7 denotes a coil spring. The coil spring 7 is loaded between the front shaft 2 and the center barrel 5 and urges the center barrel 5 to project upward from the front barrel 2. It is something. Reference numeral 8 denotes a knock cap that is detachably attached to the rear end portion of the rear shaft 3, and the knock cap 8 is made of colored plastic such as red, yellow, green, blue, and black, and is integrated into one body. Specifically, a clip 8a is provided. The eraser E is colored in the same color as the knock cap 8 and is formed in a cylindrical shape and housed in the center barrel 5.

Next, the operation and action of the eraser holder according to the first embodiment of the present invention will be described. First, as shown in FIG. 1, the chuck portion 5a is tightened by the chuck ring 6 by the force of the center cylinder 5 that is biased backward by the biasing force of the coil spring 7, and the chuck portion 5a removes the eraser E. keeping. When the knock cap 8 is knocked from this state, the coil spring 7 is compressed and the center barrel 5 moves forward, so that the chuck ring 6 also moves forward as the center barrel 5 moves forward.

Then, when the chuck ring 6 moves forward and the upright projection 6d comes into contact with the front end edge of the locking hole 2b of the front shaft 2, the chuck ring 6 stops, so that at this position, the chuck portion 5a and the chuck ring The engagement with 6 is released. When the center cylinder 5 further advances from this state, the chuck portion 5a advances in the opened state, and the eraser E is fed out for the subsequent movement stroke. In this way, when the chuck portion 5a separated from the chuck ring 6 advances, the pair of holding portions 2g enter the inside of the chuck portion 5a and expand the chuck portion 5a, so that the eraser E can be easily formed. Be paid out.

Next, when the pressing force on the knock cap 8 is released, the center barrel 5 and the chuck ring 6 are retracted by the urging force of the coil spring 7, but the eraser E is held by the holding portions 2f, 2g. Therefore, it keeps its extended position without retreating or falling. When the center barrel 5 is completely retracted, the chuck portion 5a is tightened by the chuck ring 6, so that the chuck portion 5a is again in a state of holding the eraser E.

When the eraser E is returned to the inside of the cylinder shaft 1 after use, if the knock cap 8 is maintained in the knocked state, the chuck portion 5a expands as described above. The eraser E can be returned into the cylindrical shaft 1 by releasing the pressing force of the knock cap 8 after the pushing. Further, the eraser E can be replaced by removing the knock cap 8 and inserting a new eraser E into the center barrel 5.

When the eraser E is sequentially fed out in this manner, the remaining amount of the eraser E can be visually recognized from the outside since the shaft cylinder 1, the grip 4, the center cylinder 5 and the chuck ring 6 are transparent. As a result, the eraser E can be replaced with a new eraser E before it comes off from the chuck portion 5a, and there is no trouble in use. When the eraser E is colored, the appearance is improved and the remaining amount of the eraser E can be easily visually recognized.

Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 4 is a vertical sectional view showing an eraser holder according to a second embodiment of the present invention. In FIG. 4, reference numeral 11 denotes a shaft cylinder made of transparent plastic. The shaft cylinder 11 is provided with a step portion 11a at its inner front end portion, and is also provided with a step portion 11b at its inner rear portion. . Reference numeral 12 denotes a transparent cap that is screwed to the front end of the shaft cylinder 11. The cap 12 is made of transparent plastic and has a plurality of protrusions 12a for holding an eraser E inside.

Reference numeral 13 denotes a center barrel that is slidably disposed in the barrel 11, and the center barrel 13 is made of transparent plastic. A chuck portion 13a for holding the eraser E is provided at the tip of the center barrel 13, and projections 13b are provided on the outside of the front portion at intervals of 180 degrees. Reference numeral 14 denotes a chuck ring arranged in the barrel 11. The chuck ring 14 is made of transparent plastic and has a chuck portion 13a loosely fitted therein. A flange 14a that abuts the step 11a is provided at the front end of the chuck ring 14, and a recess 14c with a stopper 14b into which the protrusion 13b is inserted is provided at the rear end. Further, reference numeral 15 denotes a coil spring, and the coil spring 15 is loaded between the barrel 11 and the center barrel 13 and urges the center barrel 13 to project upward from the barrel 11. . Reference numeral 6 denotes a knock cap that is detachably attached to the rear end of the barrel 11, and the knock cap 16 is made of colored plastic such as red, yellow, green, blue, and black. The eraser E is colored in the same color as the knock cap 16.

The eraser holder according to the second embodiment basically has the same operation action as that of the first embodiment. Therefore, the outline of its operation and action will be described, and the details thereof will be omitted. In this eraser holder, in order to feed the eraser E or store it in the mouthpiece 12, first, the middle cylinder shaft 13 is knocked and moved forward. With this knock, the flange 14a of the chuck ring 14 hits the end of the mouthpiece 12 and its forward movement is blocked, but the intermediate cylinder shaft 13 advances and the chuck 13a provided at the tip of the intermediate cylinder 13 expands. Be opened. As a result, the eraser E is held at the forward position by the inward projection 12a of the mouthpiece 12. After that, when the middle cylinder shaft 13 is retracted by the coil spring 15, the chuck portion 13a is closed by the chuck ring 14, and the eraser is securely held by the chuck portion 13a.

Also in the eraser holder of the second embodiment, since the shaft cylinder 11, the base 12, the center cylinder 13 and the chuck ring 14 are transparently formed, it is possible to visually check the remaining amount of the eraser E from the outside. Therefore, the eraser E can be replaced with a new eraser E before it is removed from the chuck portion 13a. Therefore, it will not cause any problems in use. Further, since the eraser E is colored, the appearance is improved and the remaining amount of the eraser E can be surely visually recognized.

Next, a third embodiment of the present invention will be described with reference to FIG. Incidentally, FIG. 5 is a vertical sectional view showing an eraser holder according to a third embodiment of the present invention. In FIG. 5, reference numeral 21 denotes a shaft cylinder made of transparent plastic, and the shaft cylinder 21 has a flat rectangular cross section. Further, the shaft cylinder 21 is provided with a narrowed portion 21a for holding the eraser E at the tip thereof, an axial slit 21b is provided on the narrow upper surface thereof, and serrated engagements are provided on both sides of the slit 21b. A joint 21c is provided.

Reference numeral 22 denotes a slider that is movably arranged along the slit 21b on the shaft cylinder 21, and the slider 22 is made of colored plastic such as red, yellow, green, blue, and black. The shape is H-shaped. The slider 22 is provided at its front end with an eraser holding portion 22a made up of two plate-shaped members that face each other. Further, on one side surface of the slider 22, there are provided an engagement protrusion 22b which is engaged with and disengaged from the engagement portion 21c, a protrusion 22c which protrudes from the slit 21b, and a knob 22d which is located at the tip of the protrusion 22c. It is provided.

Reference numeral 23 denotes a cap that is detachably attached to the rear end portion of the shaft cylinder 21, and the cap 23 is made of a colored plastic such as red, yellow, green, blue or black. ing. The eraser E is colored in the same color as the cap 23. At the rear end of the eraser rubber E, a held portion e held by the eraser holding portion 22a is provided. Further, the slider 22, the cap 23, and the eraser E may be colored in the same color.

Next, the operation of the eraser holder according to the third embodiment will be described. First, in the state shown in FIG. 5, the knob 22d protruding from the slit 21b of the shaft cylinder 21 is pressed toward the shaft cylinder 21 side to bend the slider 22, thereby disengaging the engagement protrusion 22b from the engagement portion 21c. Let By releasing this engagement, the slider 22 becomes movable, and the slider 22 can be moved in the axial direction of the barrel 21. By moving the slider 22 forward, the eraser E can be projected from the tip of the barrel 21.

Then, after the eraser E is projected from the tip of the shaft cylinder 21 for a predetermined length, the pressing force on the knob 22d is released, and the slider 22 returns to the original state, so that the engagement protrusion 22b is engaged. It engages with the portion 21c. As a result, the eraser E can be fixed so as not to move in the axial direction of the barrel 21. When the eraser E is returned to the inside of the barrel 21 after use, the eraser E can be returned to the inside of the barrel 21 by retracting the slider 22 in the procedure described above.

In the eraser holder of the third embodiment, the eraser E inside the shaft cylinder 21 can be confirmed from the gap of the slit 21b of the shaft cylinder 21, but the slit 21b is formed at the front end portion of the shaft cylinder 21. Since the mark is not formed, the remaining amount of eraser E cannot be confirmed. Therefore, since the barrel 21 is formed of a transparent material, particularly the tip portion of the barrel 21, the remaining amount of the eraser E can be visually recognized from the outside. Then, the eraser E can be replaced with a new eraser E before it comes off from the eraser rubber holding portion 22a, and there is no trouble in use. In addition, by coloring the eraser E, the appearance is improved and the remaining amount of the eraser E can be easily visually recognized. Further, since the eraser E and the slider 22 or the eraser E and the cap 23, or the eraser E, the slider 22 and the cap 23 have the same color, the commercial value can be enhanced.

In addition, in the above-mentioned embodiment, each part is made transparent in order to have translucency, but the same effect can be obtained even if it is semi-transparent. Further, in the first embodiment, the rear shaft 3 is also made transparent, but even if the rear shaft 3 is made the same color as the eraser E, and only the front shaft 2 is made transparent and semi-transparent, the time for exchanging the eraser E is Can be seen. Furthermore, in the second and third embodiments, as in the first embodiment, a transparent grip member may be arranged outside the barrels 11 and 21. In addition, the specified member is made of transparent material in order to have translucency, but the remaining amount of the eraser is confirmed by forming the specified member with an opaque material and forming an opening such as a slit. You may do it.

[0034]

[Effect of the invention]

 As described above, according to the present invention, since the eraser housed in the barrel can be seen from the outside, the remaining amount of the eraser can be seen from the outside. As a result, it is possible to replace the eraser with a new one at the optimum time without causing any trouble in use. Further, since the eraser is colored and is colored in the same color as the cap, the knock cap, etc., the remaining amount of the eraser can be easily visually recognized and the commercial value can be enhanced.

[Brief description of the drawings]

FIG. 1 is a vertical sectional view showing an eraser holder according to a first embodiment of the present invention.

FIG. 2 is an enlarged vertical cross-sectional view of the tip shaft shown in FIG.

FIG. 3 is a perspective view showing a state in which the center cylinder and the chuck ring shown in FIG. 1 are assembled.

FIG. 4 is a vertical sectional view showing an eraser holder according to a second embodiment of the present invention.

FIG. 5 is a vertical sectional view showing an eraser holder according to a third embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 shaft cylinder 2 front shaft 2a mounting part 2b locking hole 2c male screw 2d engaging hole 2e notch 2f holding part 2g holding part 3 rear shaft 3a female screw 4 grip member 5 middle shaft cylinder 5a chuck part 5b convex part 5c concave part 5d notch 5e standing Protrusion 6 Chuck ring 6a Convex portion 6b Recess 6c Notch 6d Standing protrusion 7 Coil spring 8 Knock cap 8a Clip 11 Shaft barrel 11a Step portion 11b Step portion 12 Base 12a Protrusion 13 Medium shaft tube 13a Chuck portion 13b Projection 14 Flange ring 14a 14 14c Recessed portion 14c 15 Coil spring 16 Knock cap 21 Shaft cylinder 21a Narrowed portion 21b Slit 21c Engagement portion 22 Slider 22a Eraser holding portion 22b Engagement protrusion 22c Projection piece 22d Grip 23 Cap E Eraser e Protected Holding section

Claims (11)

[Utility model registration claims] 1. An eraser holder capable of feeding out an eraser from the tip of a barrel, wherein at least a tip portion of the barrel has a light-transmitting property so that the remaining amount of the eraser can be visually recognized. And eraser holder. 2. The eraser holder according to claim 1, wherein at least a tip portion of the barrel is formed of a transparent material so that at least a tip portion of the barrel has a light transmitting property. 3. An eraser holder capable of feeding out an eraser from a tip of a barrel, a center barrel having a chuck portion for holding the eraser, a chuck ring provided outside the chuck portion, and the center rod. An eraser holder comprising: a cylinder and a shaft cylinder in which an elastic body is housed, and by moving the middle cylinder against the urging force of the elastic body, an eraser can be fed out from the tip of the shaft cylinder. An eraser holder characterized in that at least tip portions of the barrel and the middle barrel are made transparent to allow the remaining amount of the eraser to be visually recognized. 4. A transparent material is formed in at least the tip end portions of the shaft cylinder and the center rod cylinder so that at least the tip end portions of the shaft barrel and the center rod cylinder have translucency. Eraser holder described in. 5. An eraser holder capable of feeding out an eraser from a tip of a barrel, a center barrel having a chuck portion for holding the eraser, a chuck ring provided outside the chuck portion, and the center rod. A shaft cylinder including a front shaft and a rear shaft for accommodating a cylinder and an elastic body is provided, and the eraser is fed from the tip of the front shaft by moving the center cylinder against the biasing force of the elastic body. An eraser holder, wherein the front shaft and the center barrel are made translucent so that the remaining amount of the eraser can be visually confirmed. 6. The eraser holder according to claim 5, wherein the front shaft and the center cylinder are made of a transparent material in order to make the front shaft and the center cylinder transparent. 7. The eraser holder according to claim 1, wherein a translucent grip member is provided outside the barrel or outside the front shaft. 8. The eraser holder according to claim 3, wherein the chuck ring has a light-transmitting property. 9. The eraser is colored, and a removable cap is provided at a rear end portion of the barrel or a removable knock cap is provided at a rear end portion of the center barrel,
The eraser holder according to any one of claims 1 to 8, wherein the cap or the knock cap has the same color as the eraser. 10. An eraser holder capable of feeding out an eraser from the tip of a barrel, the eraser holder having a light-transmitting property at least at the tip of the barrel so that the remaining amount of the eraser can be visually recognized. And has an axial slit formed in the shaft cylinder, an engaging portion provided in the slit, and a locking projection that engages and disengages with the engaging portion, and engages with an eraser rear end portion. An eraser holder, comprising: a slider, and by moving the slider along the slit, the eraser is fed from the tip of the barrel. 11. The eraser holder according to claim 10, wherein the slider and the eraser have the same color.