CN213007297U - Eraser capable of being accurately wiped - Google Patents

Abstract

The utility model discloses an eraser capable of being accurately wiped, which relates to an eraser, comprising a central body, wherein the outer wall of the central body is provided with a plurality of edge parts which are not contacted with each other and only the inner end of which is connected with the central body, the thicknesses of all the edge parts are different, the number of the edge parts is not less than three, the eraser also comprises a support rod arranged in the central body and clamping pieces at the two ends of the support rod; the utility model discloses can clean the width according to the foundation and choose for use corresponding arris portion to improve and clean the precision, avoided the phenomenon that the mistake was erased, improved the user and cleaned the impression.

Description

Eraser capable of being accurately wiped

Technical Field

The utility model relates to an eraser.

Background

At present, most of the eraser sold on the market is a cuboid common eraser, and the eraser can have the following problems when in use: limited by its shape, only the corner angle when first used can be modified somewhat more finely. With the repeated use, the edge of the paper is changed into a round angle, the contact area between the eraser and the paper is increased, when a writing or drawing dense area is wiped, the correct part can be erased, a file drawer needs to draw again, and the learning and working efficiency is influenced; the eraser can generate certain deformation under the influence of the hand-holding force of a user when in use, and the wiping accuracy is also influenced to a certain degree.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide a but accurate rubber of cleaning to be difficult to gradually in the rubber use among the solution prior art accurately clean and handheld dynamics influences the technical problem who cleans accuracy nature.

The utility model discloses a realize through following technical scheme:

the utility model provides an eraser that can accurately clean, including the central body, be provided with a plurality of mutual contactless each other and only the inner arris portion of being connected with the central body on the outer wall of central body, the thickness of all arris portions is all inequality, and the arris portion is no less than three.

Further, the thickness of all the edges tapers outwardly from their connection to the central body.

Furthermore, the thickness of part of the edge part is gradually reduced from the connection part of the edge part and the central body, and the rest parts are always kept consistent.

Further, the arris portion is specifically three, and the thickness of one of them diminishes to 1 millimeter outwards gradually from its junction with the central body, and the thickness of two other arris portions outwards keeps unanimous all the time and is 3 millimeters and 4 millimeters respectively from the junction with the central body.

Furthermore, still be equipped with three edges, and three thickness from keeping unanimous outward all the time with the central body junction and be 5 millimeters, 6 millimeters and 8 millimeters respectively, all edges are around its midline from little to big rotatory distribution in its outer wall of central body on its outer wall.

Furthermore, a support rod is arranged in the central body, and two ends of the support rod are arranged on the outer side of the central body.

Further, the clamping pieces are respectively installed at the two ends of the supporting rod.

Further, the clamping piece specifically comprises a pressing plate and a cap, the cap is arranged at the center of the pressing plate, the cap is sleeved on the end of the supporting rod, and the supporting rod is specifically made of a material capable of being cut.

Further, the central body is embodied as a cylindrical or polygonal prismatic structure.

Furthermore, the cross-sectional area of the two ends of the central body is larger than that of the clamping pieces, and a scale drawing area is arranged on the area, which is not covered by the corresponding clamping pieces, of the end part of the central body.

Compared with the prior art, the utility model has the following advantages: the utility model provides a rubber that can accurately clean, the utility model discloses a change traditional cuboid form rubber into the structure of a plurality of independent edges, and the width of every edge is inequality to make and select the edges of different widths for use as required to clean at practical in-process, can satisfy the requirement that conventional notebook whole line was revised fast through different widths. On the basis of protecting the other correct parts from being damaged and keeping the paper neat, the efficiency in use is greatly improved, and meanwhile, a good use feeling can be provided for a user; set up bracing piece and holder simultaneously for the user can freely press when using, has avoided in the traditional rubber to have elasticity because of rubber self is compressible and leads to the problem that needs press the pressure degree, thereby can reduce the use degree of difficulty, can not compress rubber itself simultaneously, makes the rubber only receive the frictional force of paper when wiping, probably leads to its self to warp and influence the drawback of wiping when avoiding the handheld use of traditional rubber.

Drawings

FIG. 1 is a schematic structural diagram of an eraser capable of being accurately wiped according to embodiment 1;

FIG. 2 is a schematic structural diagram of an eraser capable of being accurately wiped according to embodiment 2;

FIG. 3 is a schematic structural diagram of an eraser capable of being accurately wiped according to embodiment 3;

FIG. 4 is a schematic view showing the structure of a support rod and a holder in embodiment 4;

FIG. 5 is a schematic view of the structure of the holder according to embodiment 5.

In the figure: 1. a central body; 2. a ridge portion; 3. a support bar; 4. a clamping member; 5. pressing a plate; 6. and (7) capping.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1, in order to overcome the defect of the conventional long strip eraser, in this embodiment, an eraser capable of being accurately wiped is provided, which includes a central body 1 (the shape of the central body 1 may be set according to requirements, and generally is set to be cylindrical or polygonal, spherical, or square, etc.), a plurality of edge portions 2 that are not in contact with each other and only have inner ends connected to the central body 1 are disposed on the outer wall of the central body 1 (the edge portions 2 are generally rectangular after being detached from the central body 1, the surface of the edge portions connected to the central body 1 is a bottom surface, the end portion of the edge portions that deviates from the central body 1 is an inner end, the long side of the bottom surface corresponds to the length of the edge portions 2, the short side corresponds to the thickness of the edge portions 2, when the two thicknesses are the same, and the distance between the outer end and the inner end is a height), the thicknesses of all the edge portions 2 are different (or all may be, can be set as required), the arris portion 2 is not less than three.

The material of the central body 1 and the edge 2 is not different from that of the traditional eraser.

In the embodiment, the thicknesses of the three edge portions 2 are all gradually reduced from inside to outside (as shown in fig. 1), or the thicknesses of the three edge portions 2 may be changed to such a manner that one of the thicknesses is gradually reduced from the connection with the central body 1 to 1 mm, and the thicknesses of the other two edge portions 2 are always consistent from the connection with the central body 1 to the outside and are respectively 3 mm and 4 mm (such a structure is not shown in the drawings).

The arrangement of the three edge parts 2 enables the equipment to meet the wiping width requirements of at least three sizes, the thickness of the edge parts gradually becomes narrower from inside to outside, the thickness of the edge parts is variable, the requirement of the wiping width is slightly changed, the edge parts can be adjusted according to the requirement, but the service life of the edge parts 2 is general;

when there is no requirement for the wiping width, the wiping can be performed by using the area of the central body 1 where no edge is provided, thereby providing the utilization rate and the service life of the device.

Example 2

With reference to fig. 2, on the basis of embodiment 1, this embodiment improves embodiment 1, and 3 ridge portions 2 are added to the central body 1 in embodiment 1 again, and the thicknesses of the three ridge portions are always consistent from the connection with the central body 1 to the outside and are respectively 5 mm, 6 mm and 8 mm, and all the ridge portions 2 are rotationally distributed on the outer wall of the central body 1 around the center line thereof according to the thickness of the outermost end from small to large.

Example 3

In order to overcome the defect that the eraser generates certain deformation due to pressure generated by the eraser when in use and influences wiping precision by combining with the figure 3, the following improvements are made on the basis of the embodiment 1: the central body 1 is also provided with a support rod 3, and two ends of the support rod 3 are arranged at the outer side of the central body 1.

When the eraser is used, only two fingers are needed to press the two ends of the supporting rod 3 respectively, and then the corresponding ridge parts 2 are selected for wiping, so that the eraser is not stressed by pressing the supporting rod 3, and the defect that wiping precision is damaged due to deformation of the eraser can be overcome.

Example 4

In order to further improve the comfort level in use, in addition to embodiment 3, the support rod 3 is modified by installing the clamping members 4 at the two ends of the support rod 3.

Through the arrangement, the contact area of the clamping piece 4 and the fingers can be increased, so that the comfort in the use process is improved.

Example 5

With reference to fig. 5, in order to prolong the service life of the eraser as much as possible and avoid the reduction of the service life of the eraser due to the supporting rod 3, on the basis of the embodiment 4, the eraser is improved, that is, the clamping member 4 is specifically composed of a pressing plate 5 and a cap 6, the cap 6 is arranged at the center of the pressing plate 5, the cap 6 is sleeved on the end of the supporting rod 3, and the supporting rod 3 is specifically made of a cuttable material.

When the central body 1 is consumed, the length of the central body is shortened by cutting the support rod 3, so that the central body and the central body 1 are synchronously changed, the defect that the central body 1 cannot be completely used due to the influence of the support rod 3 can be effectively avoided, and the service life and the efficiency of the equipment are improved.

Meanwhile, for selection in use, the cross-sectional area of the two ends of the central body 1 is larger than that of the clamping piece 4, and a scale carving area is arranged on the area, which is not covered by the corresponding clamping piece 4, of the end part of the central body, and scale carving can be carried out on the scale carving area, so that the specific width of the corresponding ridge part 2 is identified.

Claims (10)

1. The eraser capable of being accurately wiped comprises a central body (1) and is characterized in that a plurality of edge parts (2) which are not mutually contacted and only connected with the central body (1) at the inner end are arranged on the outer wall of the central body (1), the thicknesses of all the edge parts (2) are different, and the number of the edge parts (2) is not less than three.

2. An accurate erasers according to claim 1, characterized by the fact that all the edges (2) taper in thickness outwards from their junction with the central body (1).

3. An eraser capable of being wiped precisely as claimed in claim 1, wherein the thickness of part of the edge portion (2) is gradually reduced from the connection with the central body (1), and the rest is always kept the same.

4. An eraser capable of being wiped precisely as claimed in claim 3, wherein the thickness of one of said ribs (2) is gradually reduced to 1 mm from the connection with the central body (1), and the thickness of the other two ribs (2) is always consistent from the connection with the central body (1) and is 3 mm and 4 mm respectively.

5. The eraser capable of being wiped accurately as claimed in claim 4, wherein three ridges (2) are provided, and the thickness of the three ridges is always consistent from the connection with the central body (1) to the outside and is respectively 5 mm, 6 mm and 8 mm, and all the ridges (2) are rotationally distributed on the outer wall of the central body (1) around the center line thereof from the small to the large according to the thickness of the outermost end.

6. The eraser capable of wiping accurately according to any one of claims 1-5, wherein a support rod (3) is further disposed in the central body (1), and both ends of the support rod (3) are disposed outside the central body (1).

7. The eraser capable of wiping accurately as claimed in claim 6, wherein the supporting rod (3) is provided at both ends thereof with a holder (4), respectively.

8. The eraser capable of wiping accurately according to claim 7, wherein the holder (4) is composed of a pressing plate (5) and a cap (6), the cap (6) is disposed at the center of the pressing plate (5), the cap (6) is sleeved on the end of the supporting rod (3), and the supporting rod (3) is made of a cuttable material.

9. An eraser capable of being wiped precisely according to claim 7 or 8, wherein said central body (1) is embodied in a cylindrical or polygonal prismatic structure.

10. The eraser capable of being wiped precisely as claimed in claim 9, wherein the central body (1) has a cross-sectional area at both ends thereof larger than that of the holder (4), and a scale-marking region is provided on a region of the central body at the end thereof not covered by the corresponding holder (4).

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