JPH0723597U - Eraser - Google Patents

Abstract

(57) [Abstract] [Purpose] In the eraser, the liquid storage portion is constituted by the shaft cylinder itself made of a hard material to facilitate the production of the eraser as a whole. [Structure] An outflow pipe communicating with the liquid reservoir is connected to the base side of the pen tip portion, and the pen tip portion is moved in the axial direction of the barrel portion by a support member made of an elastic material on the base portion side in the barrel portion. The pen tip portion is slidably supported, or the pen tip portion is slidably supported in the axial direction of the barrel by a spring that biases the pen tip toward the tip of the barrel.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an improvement of an eraser used to correct the characters of a manuscript, characters written in ink, etc.

[0002]

[Prior art]

 Conventionally, in the eraser that stores the eraser liquid in the barrel, flows it out from the pen tip, and applies it to the part that needs correction, the eraser made of a flexible material on the base side of the barrel. The ink reservoir is configured to project to the outside, and the eraser in the interior is caused to flow out from the pen tip by pressing the projecting liquid reservoir as necessary.

However, in the above-described conventional eraser, the protruding eraser liquid storage portion is made of a flexible material, so that it is formed by blow molding, which requires time and labor for manufacturing and also increases manufacturing cost. It is a thing. Also, since the user of the eraser has to press the liquid storage part one by one as needed, it is not only a troublesome operation, but also when there are many parts to be erased, the eraser can be continuously used. It had the drawback that it could not be used and the liquid reservoir had to be pressed many times. In addition, when pressing the liquid storage portion unnecessarily, there is a risk that the liquid will drop from the tip of the pen, and the user must always maintain an appropriate pressing force. In addition, since the ink storage part made of a flexible material is exposed to the outside, there is a risk that the ink storage part will be unnecessarily pressed except when the eraser is used, and the eraser liquid will flow out from the pen tip. was there.

Therefore, the present invention is to improve the drawbacks of the above-mentioned conventional ones, and with a simple structure, when the eraser itself is used, the eraser is automatically guided from the liquid reservoir to the pen tip, In addition, it also prevents the liquid from dropping.

[0005]

[Means for Solving the Problems]

 For this purpose, an outflow pipe communicating with the eraser liquid storage part is provided on the base side of the pen tip part, and the eraser nib part is provided on the outer periphery of the outflow pipe with a support member made of an elastic material. The pen tip is slidably supported in the axial direction of the shaft cylinder, or the pen tip is slidable in the axial direction of the shaft cylinder by a spring that biases the pen tip toward the tip of the shaft cylinder together with the support member. In support of.

[0006]

[Action]

 With the above configuration, it is not necessary to configure the liquid storage part with a flexible material, and the entire liquid storage part can be configured with a hard material such as plastic, so it can be manufactured inexpensively and in a short time by injection molding. Since the pen tip portion presses the pen tip portion with the use of the eraser, the outlet pipe communicating with the liquid reservoir portion enters the liquid reservoir portion, and Since the eraser liquid is compressed and the eraser liquid in the liquid storage portion is allowed to flow out to the pen tip, it is possible to continuously guide the liquid to the pen tip portion when using the eraser tool, and to the liquid reservoir portion. On the other hand, since strong pressure is not unnecessarily applied, it is possible to avoid the risk of liquid dripping. Moreover, since the entire liquid storage portion is housed in the barrel, it is possible to prevent an unnecessary load from being applied to the liquid storage portion from the outside.

[0007]

【Example】

 The invention will be further described with reference to the embodiments shown in the drawings. FIG. 1 shows an embodiment of the present invention. (1) is an eraser equipped with the present invention, (2) is a barrel, and a barrel tip (8) and a barrel base ( 9) is formed by airtightly engaging and fixing two components, and a cap (3) is detachably attached to the tip of the barrel tip (8), and (4) is a pen tip. The tip is equipped with a ball, felt core, etc. for discharging the eraser liquid as appropriate, and protrudes from the tip of the shaft cylinder tip (8), and its base side is a truncated cone-shaped ink discharge tube via the connecting cylinder (5) (6) is connected. Reference numeral (7) is a liquid reservoir, which is formed inside the shaft cylinder (2) and has its tip end in contact with the liquid outlet cylinder (6). Reference numeral (10) is an outflow pipe, which is a hollow cylindrical shape having a locking edge (11) on the outer side at the substantially tip end side, and at the tip end thereof, the base side of the pen tip (4) and The connecting cylinder (5) and the liquid outlet cylinder (6) are fitted and fixed in an airtight manner, while the base side thereof extends into the liquid reservoir (7) up to the substantially central portion of the shaft cylinder (2). Further, a locking protrusion (13) is provided outside the locking edge (11) on the base side. Reference numeral (14) is a support member, which is made of a solvent-resistant elastic material such as silicon rubber and has a hollow cylindrical shape, and its tip end engages with the locking edge (11) of the outflow pipe (10). The locking recess (15) provided on the inner wall surface engages with the locking projection (13) of the outflow pipe (10), and further, the locking recess (15) and the locking projection (13) are provided. In the position where they are engaged, they are tightened from the outside by a fixing ring (16). On the other hand, a flange (19) is formed on the base portion side of the support member (14), and a step portion (8) of the fixed barrel (17) fixed to the inner wall of the barrel base portion (9) and the barrel tip (8) ( The flange (19) is inserted and fixed in the gap with 18).

FIG. 2 shows another embodiment, in which a notch (20) is provided between a portion of the supporting member (14) where the fixing ring (16) is fitted and the flange (19). Insert the spring (21) that urges the pen tip (4) toward the tip of the barrel (2).

With this configuration, the pen tip portion (4), the connecting tube (5), the liquid outlet tube (6), the outflow tube (10) and the support member (14) are integrally connected. The support member (14) is disposed inside the barrel (2), the tip side of the support member (14) is the locking edge (11) of the outflow pipe (10), and the base side is the fixed barrel (17) and the barrel. The flange (19) is inserted into the gap between the tip portion (8) and the stepped portion (18) to fix them. Since the eraser tool (1) is used, when the pen tip (4) is pressed against the eraser nib (4) while being brought into contact with an erase target portion such as a character on the paper, The reaction force exerts a pressing force on the base side of the barrel (2), and the outlet pipe (10) integrated with the pen tip (4) also moves to the base side of the barrel (2). The pressing force of is applied. This pressing force also acts on the support member (14) via the locking edge (11) of the outflow pipe (10), and since the support member (14) itself has elasticity, the support member (14) will be compressed. As a result, the rear end (12) of the outflow pipe (10) protruding into the liquid storage part (7) moves to the base side of the barrel (2), and the eraser liquid in the liquid storage part (7) or The air is compressed and the erase liquid in the liquid storage portion (7) is guided to the pen tip portion (4) through the liquid discharge cylinder (6) and the connection cylinder (5). On the other hand, when the use of the eraser (1) is stopped and the pressing on the pen tip (4) is stopped, the pressing force on the base side of the barrel (2) due to the reaction is also canceled. Therefore, due to the elasticity of the support member (14) itself, the locking edge (11) of the outflow pipe (10) is pressed toward the tip end side of the barrel (2) and returns to the original state, and at the same time, the outflow pipe (12) The position also returns to the original state. As a result, the compression of the eraser liquid or the air in the liquid storage portion (7) is canceled, so that the introduction into the pen tip portion (4) is also stopped.

Further, as shown in FIG. 2, when a spring (21) for urging the pen tip (4) toward the tip of the barrel (2) is inserted, when the eraser (1) is used. This spring (21) contracts like the support member (14), and when the use of the eraser (1) is stopped, the elasticity of the support member (14) itself as well as its spring (21) Due to the extension force, the support member (14) quickly returns to its original state, and the position of the compression section (12) also quickly returns to its original state. As a result, the introduction of the eraser liquid in the liquid storage portion (7) into the pen tip portion (4) can be stopped more quickly.

[0011]

[Effect of device]

 Since it is configured as described above, it has a simple structure as a whole, and can also serve as a liquid storage portion and a shaft cylinder. Moreover, the liquid storage portion can be made of a hard material such as plastic. Therefore, the ink reservoir can be protected from unnecessary pressing force from the outside and can be manufactured at low cost in a short time by injection molding.Furthermore, when the eraser is used, It has the excellent effect of being able to guide a certain amount of ink to the pen tip and preventing ink shortage and dripping.

[Brief description of drawings]

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

FIG. 2 is a vertical sectional view of a second embodiment according to the present invention.

[Explanation of symbols]

 1 character eraser 2 shaft cylinder 3 cap 4 nib 5 connecting cylinder 6 liquid outlet cylinder 7 liquid storage part 8 shaft cylinder tip 9 shaft cylinder base 10 outflow pipe 11 locking edge 12 outflow pipe tip 13 locking protrusion 14 Supporting Member 15 Locking Recess 16 Fixing Ring 17 Fixing Cylinder 18 Step 19 Flange 20 Notch 21 Spring

Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location B65D 47/44 E 83/00

Claims (2)

[Scope of utility model registration request] 1. A pen tip portion is provided at the tip of the barrel,
It has an eraser liquid storage part in the shaft cylinder, and connects an outflow pipe communicating with the eraser liquid storage part to the base side of the pen tip part,
By the support member made of an elastic material, the outer periphery of the outflow pipe,
An eraser that supports the pen tip so that it can slide in the axial direction of the barrel. 2. A spring for urging the pen tip toward the tip of the barrel together with the support member on the outer circumference of the outflow pipe,
The eraser according to claim 1, wherein the pen tip portion is slidably supported in the axial direction of the barrel.