JPS6412888U

JPS6412888U -

Info

Publication number: JPS6412888U
Application number: JP10708487U
Authority: JP
Priority date: 1987-07-14
Filing date: 1987-07-14
Publication date: 1989-01-23

Description

[Brief explanation of the drawing]

第１図乃至第８図はこの考案の実施例を示し、
第１図は第１実施例による自走式大扉の構成説明
図、第２図は第１図の作動説明図、第３図は第１
図の作用力の説明図、第４図は巻取ドラムの側面
図、第５図は巻取ドラムの正面図、第６図は第２
実施例による自走式大扉の構成説明図、第７図は
第３実施例による自走式大扉の構成説明図、第８
図は第４実施例による自走式大扉の構成説明図で
ある。第９図、第１０図は従来例による自走式大
扉の構成説明図、第１１図、第１２図は従来例の
作用力の説明図、第１３図は提案中の自走式大扉
の構成説明図である。図において、１は大扉、２は給電ケーブル、３
はカウンタロープ、５は巻取ドラム、６はウエイ
ト、７はスプリング、３３は動滑車、５２はケー
ブルドラム、５３はロープドラムである。 1 to 8 show examples of this invention,
Fig. 1 is an explanatory diagram of the configuration of the self-propelled large door according to the first embodiment, Fig. 2 is an explanatory diagram of the operation of Fig. 1, and Fig. 3 is an explanatory diagram of the self-propelled large door according to the first embodiment.
Figure 4 is a side view of the winding drum, Figure 5 is a front view of the winding drum, and Figure 6 is the second
FIG. 7 is an explanatory diagram of the configuration of the self-propelled large door according to the third embodiment, and FIG.
The figure is an explanatory diagram of the configuration of a self-propelled large door according to a fourth embodiment. Figures 9 and 10 are configuration explanatory diagrams of a conventional self-propelled large door, Figures 11 and 12 are illustrations of the acting forces of the conventional example, and Figure 13 is a proposed self-propelled large door. FIG. In the figure, 1 is the large door, 2 is the power supply cable, and 3
5 is a counter rope, 5 is a winding drum, 6 is a weight, 7 is a spring, 33 is a movable pulley, 52 is a cable drum, and 53 is a rope drum.

Claims

[Scope of utility model registration request]

A power supply cable fixed to one fixed part and introduced, a counter rope fixed to and introduced to the fixed part opposite to the fixed part to which the power supply cable is fixed, a cable drum for winding the power supply cable, and the cable a winding drum coaxially having a rope drum for winding the counterrope so as to have an average winding diameter substantially the same as the average winding diameter of the drum; and a tensioning means for applying tension to the counterrope. A self-propelled large door characterized by having.