JPH0419199A - Eraser fitted with erasing refuse suction device - Google Patents

Abstract

PURPOSE:To easily carry out the erasing work of a character or the like by sucking the erasing refuse generated at the use time of an eraser from a suction port by the sucking air stream generated by the operation of a suction device to receive the same in a case. CONSTITUTION:When the character entered in the surface of paper is erased using an eraser, a switch 36 is closed by pressing operation in such a state that a housing 1 is grasped and a motor 8 is started to rotate an axial fan 9 to generate a sucking air stream from a suction port 6 toward a suction air passage 5. When the leading end part of the eraser 23 is slid along the surface of the paper in this state to erase the character, the erasing refuse generated at this time is immediately sucked in the suction air passage 5 from the suction port 6 by the suction air stream to be introduced into a case 15 through an exhaust port 12. Only air is discharged to the outside from a filter part 20 while the erasing refuse is left in the case 15. Therefore, work for collecting and removing the erasing refuse generated when the eraser 23 is used becomes unnecessary and the erasing work of a character can be easily carried out.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an eraser with an eraser suction device used for erasing characters written on paper.

[Prior Art] As a conventional eraser of this type, one is known in which an eraser provided at the tip of a housing is rotated by a motor.

[Problems to be Solved by the Invention] However, in this conventional configuration, when erasing characters, etc. by rotating the eraser, the eraser particles tend to scatter around, and even if the erasing operation becomes easier.

There was a problem in that the eraser waste was scattered widely and it became necessary to collect and dispose of the scattered eraser waste.

This invention was made by focusing on the problems that exist in the conventional technology, and its purpose is to eliminate the need to store and remove eraser waste generated when using an eraser, and to erase characters, etc. To provide an eraser that can easily perform erasing work and is compact in its entirety and easy to handle.

Another object of the invention is to provide an eraser that can reduce the number of parts.

A further object of the present invention is to provide an eraser that can reliably remove eraser waste by suction regardless of the amount of the eraser protruding from the housing.

[Means for Solving the Problems] In order to achieve the above object, the invention according to claim 1 includes a housing, an eraser attached to the tip of the housing, and near the bottom of the eraser,
a suction port provided in the housing; a suction device including a fan and a motor provided in the housing for generating suction airflow of eraser debris generated when the eraser is used at the suction port; and the suction device. and a storage section provided in the housing for storing the eraser dust sucked by the housing, and the housing section is provided with a filtering section for discharging only air to the outside while leaving the eraser dust inside. In addition, the accommodating portion is provided at the upper front end of the housing.

Further, in the invention as set forth in claim 2, the case of the accommodating portion constitutes a support for the eraser.

Furthermore, in the invention set forth in claim 3, the suction port is provided so as to be freely retractable from the housing.

[Function] In the eraser according to the first aspect, eraser debris generated when the eraser is used is sucked from the suction port by the suction air flow accompanying the operation of the suction device and stored in the storage portion. Therefore, there is no need to collect and remove the eraser waste, and it is possible to easily erase characters and the like. Then, when the shavings are introduced into the storage section by the suction air flow, only the air is discharged to the outside from the filtration section, leaving the shavings inside.

Therefore, the suction force of the suction device does not decrease, and the shavings can be efficiently stored one after another in the storage section. Since the storage part is located at the front end of the housing, the whole is compact and easy to hold.
Easy to handle.

Furthermore, in the eraser according to the second aspect of the present invention, there is no need for a special part only for supporting the eraser, and the number of parts can be reduced.

Furthermore, in the eraser according to the third aspect of the present invention, the tip of the suction port can always be positioned above the paper surface, and the eraser can be reliably sucked.

[Embodiment] Hereinafter, a first embodiment of an eraser with an eraser suction device embodying the present invention will be described in detail with reference to FIGS. 1 to 4.

As shown in FIGS. 1, 2 and 4, the housing 1
The case body 23 includes a pair of case bodies 23 which are divided into upper and lower halves, and the case bodies 2 and 3 are assembled and fixed by screws 4 with the case bodies 2 and 3 being joined together at opposite edges.

As shown in FIGS. 1 and 3, a suction air passage 5 is provided at the front end of the housing 1, and a suction port 6 is attached to the tip thereof so as to be freely retractable.

The suction device f7 is disposed within the housing 1 and includes a motor 8 and an axial fan 9 attached to the motor shaft of the motor 8 within the suction air passage 5. As the axial fan 9 is rotated by the motor 8, a suction air flow of eraser debris generated when the eraser is used is generated from the suction port 6 into the suction air passage 5.

The recess 10 is formed at the upper part of the front end of the upper case body 2, and a recess 11 is formed approximately in the center of the recess 10.
An exhaust port 12 is transparently provided at the rear. As shown in FIG. 4, a pair of mounting pieces 13 and a mounting groove 14 below the mounting pieces 13 are formed on both sides of the front end of the recess 10. As shown in FIG.

A housing case 15 made of a transparent material is removably attached to the recess 10, and the entire lower surface except the front end is open, and an eraser protrusion hole 16 is formed in the front end.
The partition wall 17 is located at the front end of the recess 11! The partition wall 17 is integrally formed inside the case 15, and the front side of this partition wall 17 serves as an eraser accommodating section 18, and the rear side serves as a dust collecting section corresponding to the recessed section 11 and the exhaust hole 12. It's 9. A mesh-like filtering section 20 consisting of a large number of small holes is formed in the upper part of the case 15 so as to correspond to the recessed section 11 . As shown in FIG. 4, a pair of mounting pieces 21
Mounting grooves 22 at the top thereof are formed on both sides of the front end of the case 15, and when the case 15 is attached to the housing 1, they fit into the mounting groove 14 and the mounting piece 3, respectively, to position the case 15 in the attached state. .

The eraser 23 is housed in the eraser accommodating portion 18 of the case 15 so as to be movable back and forth while protruding forward from the protrusion hole 16. As shown in Figure 3.4, the eraser storage section 18
A slope 24 is formed on the front side. The slope 2
A wedge member 25 is disposed on one side of the eraser 23 so as to be movable back and forth, corresponding to 4, and a knob 27 formed on the negative side of the wedge member 25 projects to the outside through a long hole 26 of the case. When the wedge member 25 is moved forward by the knob 27, the eraser 23 is clamped and fixed between the wedge member 25 and the wall on the opposite side due to cooperation between the wedge member 25 and the slope 24. When the wedge member 25 is moved backward, the fixation is released.

In this embodiment, the axial fan 9 includes a substrate 28, a plurality of blades 29 provided on the substrate 28 at predetermined intervals, and a ring-shaped cover plate 30 provided on the blades 29. It is composed of. And this cover plate 3
0, when the axial fan 9 rotates, a suction air flow is formed that passes between the cover plate 30 and the substrate 28 from the center opening of the cover plate 30, and the blades on the outer surface of the cover plate 30 are formed. This prevents a weak air flow from being generated near the outer periphery of the upper end of the blade 29, and prevents dust from adhering to the inner surface of the suction air passage 5 facing the upper end edge of the blade 29.

Then, the shavings sucked into the suction air passage 5 from the suction port 6 by the suction air flow accompanying the operation of the suction device 7 are introduced into the case 15 through the exhaust port 12, and only the air enters the filter section 20. The eraser waste is discharged to the outside and falls into the recess 11. When discarding the eraser inside the case 15, the case 15 can be pulled out forward so that the mounting piece 13 and the mounting groove 14 of the case 15 are disengaged from the mounting groove 22 and the mounting piece 21 of the housing 1.

The battery accommodating portion 32 is provided at the rear inside the housing 1, and a lid 33 is removably attached to an opening on the lower surface thereof. The terminal plates 34 are arranged to face each other in the battery accommodating portion 32, and a pair of batteries 35 are removably mounted between the terminal plates 34. A switch 36 is provided on the outer surface of the housing 1, and when the switch 36 is closed, the motor 8 is rotated.

Next, the operation of the eraser configured as described above will be explained.

Now, when you use this eraser to erase characters written on paper etc., when you close the switch 36 by pressing while holding the housing 1, the motor 8 of the suction device 7 is started and the shaft The flow fan 9 is rotated, and the suction port 6
A suction air flow is generated from the inside of the suction air passage 5. In this state, when characters, etc. are erased by moving the tip of the eraser 23 along the surface of the paper, etc., the eraser debris generated at this time is removed from the suction port 6 by the suction air flow almost as soon as it is generated. The air is sucked into the suction air passage 5 and introduced into the case 15 via the exhaust port 12.

Then, only the air is discharged to the outside from the filter section 20, leaving the eraser debris inside the case 15.

Therefore, it is not necessary to carry out the troublesome work of collecting and removing the eraser debris generated when using the eraser 23 from the paper surface, and the work of erasing characters, etc. can be easily performed. Furthermore, when the shavings are introduced into the case 15 by the suction air flow as described above, the shavings are left inside and only the air is discharged to the outside through the filter section 20, so that the suction force of the suction device 7 is reduced. Eraser dust can be sequentially and efficiently accommodated in the dust collecting section 9 without decreasing the amount of dust.

In this eraser, since the case 15 constituting the eraser accommodating portion is provided at the upper front end of the housing 1, the eraser is compact and easy to handle. In other words,
Since the suction passage FN15 is only provided at the front end of the housing 1 between the rear side of the eraser 23 and the axial fan 9, the space for the eraser accommodating section can be secured without increasing the size. It is. Moreover, case 1
Since 5 also serves as a support for the eraser 23, there is no need for special parts for supporting the eraser 23, and the number of parts can be reduced. Furthermore, since the case 15 is transparent, it is possible to ascertain at a glance how much eraser waste has accumulated. In addition,
In addition, since the filter section 20 is constituted by a large number of small holes transparently provided in the wall of the case 15, it is not necessary to use a separate part such as knitting as the filter section, and the molding of the case is unnecessary. At the same time, a filtration section can be provided, making manufacturing easier.

Furthermore, when the number of erasers 23 decreases as the eraser 23 is used, by moving the wedge member 25 backward using the knob 27, the fixation to the eraser 23 is released.
The eraser 23 can be made to protrude by the reduced amount.

Since the suction port 6 can freely move in and out under its own weight, when the eraser is used, it goes down under its own weight and comes into contact with or approaches the surface of the paper. Therefore, suction can be performed reliably without leaving any eraser debris.

[Effect of the invention] Since this invention is configured as explained above,
It has the following excellent effects:

First, in the invention as claimed in claim 1, eraser debris generated when the eraser is used is sucked from the suction port by the suction air flow accompanying the operation of the suction device and stored in the storage section, so that the eraser debris is collected and removed. There is no need to erase characters, etc., making it easy to erase characters. Furthermore, when the shavings are introduced into the storage section by the suction air flow, only the air is discharged from the filtration section, leaving the shavings inside, so the suction power of the suction device is not reduced. Eraser waste can be sequentially and efficiently stored in the section. Further, since the eraser shavings storage section is provided at the upper front end of the housing, the entire device can be made smaller and easier to handle.

Furthermore, in the invention as set forth in claim 2, since the accommodating part case constitutes a support for the eraser, the number of parts can be reduced. Furthermore, in the invention as set forth in claim 3, since the suction port is freely retractable, the suction port can always be brought into contact with or close to the paper surface, and the eraser waste can be reliably sucked.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of an eraser embodying this invention;
The figure is a perspective view, FIG. 3 is a back view of the case, and FIG. 4 is a sectional view taken along line AA in FIG. 1. DESCRIPTION OF SYMBOLS 1... Housing, 6... Inlet, 7... Suction device, 8... Motor, 9... Axial flow fan, 15...
Storage part case, 13...Eraser, 20...Filtering part.

Claims (1)

[Claims] 1. A housing (1), an eraser (23) attached to the tip of the housing (1), and an eraser (23) provided on the housing (1) near the bottom of the eraser (23). a suction port (6) and a fan (9) and a motor provided in the housing (1) to generate a suction air flow of eraser debris generated during use of the eraser (23) at the suction port (6); (8) comprising a suction device (7) and a storage section (15) provided in the housing (1) for storing the eraser scraps sucked by the suction device (7); The part (15) is provided with a filter part (20) for discharging only air to the outside while leaving the eraser waste inside, and the housing part (15) is provided at the upper front end of the housing (1). Features an eraser. 2. The eraser according to claim 1, wherein the case (15) of the accommodating portion constitutes a support for the eraser (23). 3. The eraser according to claim 1, characterized in that the suction port (6) is provided so as to be retractable from the housing (1).