Eraser with clamped-in protective sleeve

An eraser and clamping technology, applied in the eraser field, can solve the problems of poor grasp, inconvenient use, and large contact area.

Inactive Publication Date: 2013-10-30
丽水市航鸣科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to reduce the contact surface between the eraser and the paper, if the cross-section of the eraser is made smaller, it will be inconvenient to use on the one hand, because the eraser needs to be held and used by hand, and it is too thin to grasp; On the one hand, if the hardness of the eraser itself is not high enough, it is easy to bend and deform when using force, and the actual contact area during use is still large
Of course, the cross-sectional area and shape of the eraser can also be cut into the desired shape, but this is not only wasteful but also troublesome.

Method used

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  • Eraser with clamped-in protective sleeve
  • Eraser with clamped-in protective sleeve
  • Eraser with clamped-in protective sleeve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] Such as figure 1 and figure 2 As shown, the eraser with a clamping sheath is composed of a hollow sheath 1 and an eraser 2. The sheath 1 is open at both ends and is provided with a clamping groove 11 on the side wall; said clamping groove 11 communicates with the openings at both ends of the sheath and is parallel to the central axis of the sheath; the eraser 2 enters from any opening of the sheath 1, and when adjusting, use a hand or a tool to move the rubber rubber exposed outside the clamping groove. Eraser, so that the eraser moves to the appropriate position towards the opening end of the sheath; when in use, pinch the sheath, so that the sheath generates an inward extrusion force to clamp the eraser, so that the eraser will not be damaged during use. move.

[0021] The central axis of the eraser is located in the sheath 1, and the eraser exposed outside the clamping groove 11 is less than half of the eraser.

[0022] The opening end of the sheath 1 is arc-sha...

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PUM

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Abstract

An eraser with a clamped-in protective sleeve consists of the hollow protective sleeve and an eraser body. Openings at two ends of the protective sleeve and the side walls are provided with clamping grooves, so that the eraser is clamped through the clamping grooves and does not slip out of the protective sleeve easily. When the eraser is used, the protective sleeve is held, the clamping grooves are stressed and press the eraser, and accordingly the eraser does not move.

Description

technical field [0001] The invention relates to an eraser with a clamping sheath, belonging to the optimization of the eraser technology. Background technique [0002] Eraser is a kind of soft block structure with various shapes. In actual use, in order to make the eraser have a certain hardness, it is usually made thicker, and the contact area with the paper is naturally larger. [0003] In daily use, if you make a mistake when writing or drawing, if the area to be wiped is small, and there are words or pictures adjacent to the error area, it is easy to wipe the part that should not be wiped. In order to reduce the contact surface between the eraser and the paper, if the cross-section of the eraser is made smaller, it will be inconvenient to use on the one hand, because the eraser needs to be held and used by hand, and it is too thin to grasp; On the one hand, if the hardness of the eraser itself is not high enough, it is easy to bend and deform when exerting force, and th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B43L19/00
Inventor 李耀强
Owner 丽水市航鸣科技有限公司
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