JPS637008U

JPS637008U -

Info

Publication number: JPS637008U
Application number: JP10121386U
Authority: JP
Priority date: 1986-07-01
Filing date: 1986-07-01
Publication date: 1988-01-18

Description

[Brief explanation of the drawing]

第１図〜第４図は第１実施例としての自動車用
空気調和装置の内外気切替箱に組み込むためのダ
ンパとその取付け状況を示しており、第１図は組
み付けられた状態のもとでの部分正面図、第２図
はダンパの部分上面図、第３図はダンパの斜視図
、そして第４図は内外気切替箱の斜視図である。
第５図と第６図は第２実施例を示しており、第５
図はダクト内に組付けられた状態にあるダンパの
部分正面図、第６図は第５図のイ―イ断面図であ
る。第７図と第８図は、突起１ａ、１ｂを有しな
い点を除いて第１実施例と同一のダンパと、第１
実施例ダンパについて、それぞれの実測して描い
たダンパの回動に要する操作力と気温との相関グ
ラフである。図中、Ａ…ダンパ、Ｂ…ダクト（内外気切替箱
）、１…ダンパ本体、１ａ，１ｂ…回動摩擦減少
用突起、２…ダンパ回動用支軸、２Ａ，２Ｂ…支
軸２の両端の突設部、１０Ａ，１０Ｂ…ダクトの
頂壁及び底壁面、１１，１２…通風口。 Figures 1 to 4 show a damper to be incorporated into an inside/outside air switching box of an automobile air conditioner as a first embodiment and its installation situation, and Figure 1 shows the damper in the assembled state. 2 is a partial top view of the damper, FIG. 3 is a perspective view of the damper, and FIG. 4 is a perspective view of the inside/outside air switching box.
Figures 5 and 6 show the second embodiment;
The figure is a partial front view of the damper assembled in the duct, and FIG. 6 is a sectional view taken along line E in FIG. 5. 7 and 8 show a damper that is the same as the first embodiment except that it does not have the protrusions 1a and 1b;
It is a correlation graph between the operating force required to rotate the damper and the temperature, which was actually measured and drawn for each example damper. In the figure, A... damper, B... duct (inside/outside air switching box), 1... damper body, 1a, 1b... protrusions for reducing rotational friction, 2... damper rotation spindle, 2A, 2B... both ends of spindle 2. Projection portions, 10A, 10B...top and bottom wall surfaces of the duct, 11, 12...ventilation ports.

Claims

[Claims for Utility Model Registration] (1) A damper for an air conditioner for adjusting the opening degree of a ventilation hole provided in a passage for conditioned air, which has a coefficient of thermal expansion different from that of the material constituting the passage. a damper body made of a material made of a damper; a rotation support shaft connected to a peripheral edge of the damper so as to rotate together with the damper; and a rotation support shaft connected to an edge of the ventilation hole. and a shaft hole rotatably supporting a shaft, and a protrusion for reducing rotational friction of the damper is provided on a side end surface of a peripheral edge of the damper or on a mouth edge of the shaft hole. Air conditioner damper. (2) The rotational friction reducing protrusion is a tongue-like member that is protruded from the peripheral edge of the damper body along the axial direction of the support shaft in close proximity to the attachment point of the support shaft for rotating the damper. A damper for an air conditioner according to claim 1, which is characterized in that: (3) The rotational friction reducing projection has a radius of curvature of 2.
The damper for an air conditioner according to claim 2, characterized in that it has a circular arc shape of ~4 mm.