JPS6382596U

JPS6382596U -

Info

Publication number: JPS6382596U
Application number: JP17678686U
Authority: JP
Priority date: 1986-11-18
Filing date: 1986-11-18
Publication date: 1988-05-31

Description

[Brief explanation of drawings]

第１図はこの考案を具体化した一実施例を示す
斜視図、第２図は同じくその裏面側から見た内部
構造図、第３図は同じく第１図のＡ―Ａ線断面図
、第４図は抵抗付与部材の構造を示す要部縦断面
図、第５図は抵抗付与部材の変更例を示す要部縦
断面図、第６図は従来の黒板消しを示す斜視図で
ある。１はフレーム、２は保持部材、５，６は巻取り
ローラ、７は手動操作部材としての巻取りノブ、
８は消去部材、９，１０は抵抗付与部材としての
板ばね。 Fig. 1 is a perspective view showing an embodiment embodying this invention, Fig. 2 is a diagram of the internal structure seen from the back side, Fig. 3 is a sectional view taken along the line A--A in Fig. FIG. 4 is a vertical cross-sectional view of a main part showing the structure of a resistance applying member, FIG. 5 is a vertical cross-sectional view of a main part showing a modification of the resistance applying member, and FIG. 6 is a perspective view showing a conventional blackboard eraser. 1 is a frame, 2 is a holding member, 5 and 6 are winding rollers, 7 is a winding knob as a manual operation member,
8 is an erasing member, and 9 and 10 are leaf springs as resistance imparting members.

Claims

[Claims for Utility Model Registration] A frame 1, a pair of winding rollers 5 and 6 rotatably supported in parallel to the frame 1, and both ends of the winding rollers 5 and 6 wound in different winding directions. The removed sheet-like erasing member 8 is connected to at least one take-up roller 5,
a manual operating member 7 for winding up and moving the erasing member 8 by imparting rotation to the roller 5; and a holding member 2 which is arranged on the back side of the erasing member 8 between the rollers 5 and 6 and holds the erasing member 8 in a substantially linear shape. A blackboard eraser that wipes the blackboard in the area between both rollers 5 and 6 of the member.