JPH0322072U

JPH0322072U -

Info

Publication number: JPH0322072U
Application number: JP8152989U
Authority: JP
Priority date: 1989-07-10
Filing date: 1989-07-10
Publication date: 1991-03-06
Anticipated expiration: 2004-07-10
Also published as: JPH0745575Y2

Description

[Brief explanation of drawings]

第１，２図は本考案を具体化した第１実施例を
示し、第１図は非加圧状態の概略斜視図、第２図
は加圧状態の概略斜視図、第３図は第２実施例の
概略斜視図、第４図は従来装置の概略斜視図、第
５図は部分破断側面図、第６図は第５図のＡ−Ａ
線で切断したトツプローラ支持部材とフレームと
の関係を示す概略図、第７図はフロントトツプロ
ーラの支持状態を示す概略図である。ウエイテイングアーム……１、フレーム……２
、上壁……２ａ、長孔……３、トツプローラ支持
部材……４、ボルト……５、レバー……６、トツ
プローラ支持部材としてのアーム……８、開放部
としての長孔……１５、切欠き……１９、カバー
……１７。 1 and 2 show a first embodiment embodying the present invention, FIG. 1 is a schematic perspective view in a non-pressurized state, FIG. 2 is a schematic perspective view in a pressurized state, and FIG. 3 is a schematic perspective view in a pressurized state. 4 is a schematic perspective view of the conventional device, FIG. 5 is a partially cutaway side view, and FIG. 6 is taken along A-A in FIG. 5.
FIG. 7 is a schematic diagram showing the relationship between the top roller support member and the frame cut along a line, and FIG. 7 is a schematic diagram showing the state in which the front top roller is supported. Weighting arm...1, frame...2
, top wall...2a, long hole...3, top roller support member...4, bolt...5, lever...6, arm as top roller support member...8, long hole as open part...15, Notch...19, cover...17.

Claims

[Scope of utility model registration request]

In the weighting arm, the top roller support member is tightened and fixed by a bolt movable along a long hole formed in the upper wall of the frame. At least in a portion corresponding to the elongated hole, the lever can be placed in an active position where the weighting arm is locked in a pressurized state and an open position where it is separated from the frame and releases the weighting arm from the pressurized state. A weighting arm for a draft device that is provided with an opening part that opens the inside of the lever to the outside.