JPS5899099U

JPS5899099U - blackboard eraser

Info

Publication number: JPS5899099U
Application number: JP19691581U
Authority: JP
Inventors: 久保倉　重彦
Original assignee: Individual
Current assignee: Individual
Priority date: 1981-12-27
Filing date: 1981-12-27
Publication date: 1983-07-05

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

図１図Ａは、黒板消しの短手方向の断面図第１図Ｂは、
第１図Ａ中、吸塵ファンに関する部分の拡大図。軸受部
は特に開披図としである。第２図は、黒板消しの平面図
。第３゛−は、黒板消しのふき取り面を切開せる局部平
面図。１・・・・・・ふき取り面、６・・・・・・ひだ部、７
・・・・・・溝部、１２及び１３・・・・・・かさ歯車
と平歯車とより成る歯車、１６・・・・・・かさ歯車１
５を装着せる軸、１７・・・・・・ブラシ、２０・・・
・・・はずみ車の吸塵ファン。Figure 1A is a cross-sectional view of the blackboard eraser in the short direction. Figure 1B is
An enlarged view of the part related to the dust suction fan in FIG. 1A. The bearing part is particularly shown in the open view. Figure 2 is a plan view of the blackboard eraser. 3rd figure is a partial plan view showing the wiping surface of the blackboard eraser cut out. 1... Wiping surface, 6... Fold section, 7
...Groove portion, 12 and 13...Gear consisting of a bevel gear and spur gear, 16...Bevel gear 1
Shaft to which 5 is attached, 17...Brush, 20...
...Dust extraction fan for flywheel.

Claims

[Scope of utility model registration request]

As shown in the drawing, of the two parallel shafts of the blackboard eraser gear 12, the bevel gear 14 is mounted at the center of one shaft, and the axle 16 to which 15 bevel gears meshing with this shaft are mounted is mounted on the wiping surface 1. The axle shaft is fitted vertically into a bearing part 16a installed on the back side so as to be freely rotatable, a spring 16b is loosely fitted into the fitted part, a passage hole 18 is opened in the center of the partition plate 2, and the passage hole 18 is passed through the dust suction fan chamber 19. 16 is a blackboard eraser characterized by passing through the center of the passage port 1B7) and having a dust suction fan 20 of a flywheel installed at the tip of the dust suction fan chamber 19.