JPH04600U - - Google Patents
Info
- Publication number
- JPH04600U JPH04600U JP4146590U JP4146590U JPH04600U JP H04600 U JPH04600 U JP H04600U JP 4146590 U JP4146590 U JP 4146590U JP 4146590 U JP4146590 U JP 4146590U JP H04600 U JPH04600 U JP H04600U
- Authority
- JP
- Japan
- Prior art keywords
- brake
- protractor
- mounting plate
- brake mechanism
- arbitrary angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims 1
Landscapes
- Length-Measuring Instruments Using Mechanical Means (AREA)
Description
第１図及び第２図は本考案の一実施例を示し、
第１図は製図ヘツドの縦断面図、第２図は基線ブ
レーキ機構の主動セクタギヤと受動セクタギヤを
示す一部切欠平面図であり、第３図は従来例の製
図ヘツドを示す縦断面図である。
５０……製図ヘツド、５１……支持板、５２…
…回動軸、５３……スケール取付板、５８……分
度盤、５９……ブレーキデイスク、６０……ラチ
エツトホイール、６１，６２……ブレーキ機構、
６３，７８……ブレーキ、６４，８１……センタ
ピン、６５，８０……ブレーキシユー、６６，８
２……固定ブレーキシユー、６８，７７……受動
セクタギヤ、６９，７６……主動セクタギヤ、７
１……基線ブレーキレバー、７４……インデツク
スレバー。
1 and 2 show an embodiment of the present invention,
Fig. 1 is a longitudinal cross-sectional view of the drafting head, Fig. 2 is a partially cutaway plan view showing the active sector gear and passive sector gear of the baseline brake mechanism, and Fig. 3 is a longitudinal cross-sectional view showing the conventional drafting head. . 50... Drafting head, 51... Support plate, 52...
... Rotating shaft, 53 ... Scale mounting plate, 58 ... Protractor plate, 59 ... Brake disk, 60 ... Ratchet wheel, 61, 62 ... Brake mechanism,
63,78...brake, 64,81...center pin, 65,80...brake shoe, 66,8
2... Fixed brake shoe, 68, 77... Passive sector gear, 69, 76... Active sector gear, 7
1... Baseline brake lever, 74... Index lever.
Claims (1)
つて、前記キヤリツジへ連結する支持板にスケー
ル取付板と分度盤とを同軸に枢着し、前記支持板
へ分度盤を任意の回動角度で固定する基準線設定
手段と、前記分度盤に対してスケール取付板を任
意の角度で固定する任意角度設定手段とを有する
製図ヘツドに於て、前記分度盤と一体的に回動す
るブレーキデイスクを設け、前記支持板並びにス
ケール取付板の夫々に前記ブレーキデイスクを制
動するブレーキ機構を設けるとともに、前記スケ
ール取付板の回動軸へ基準線設定用の基線ブレー
キレバー及び任意角度設定用のインデツクスレバ
ーを遊嵌し、夫々、歯車或いはレバー等の動力伝
達機構を介して、前記基線ブレーキレバーと支持
板に設けたブレーキ機構とを連結し、前記インデ
ツクスレバーとスケール取付板に設けたブレーキ
機構とを連結して基線ブレーキ機構並びに任意角
度ブレーキ機構を形成したことを特徴とする製図
ヘツドのブレーキ装置。 A drafting head attached to a carriage on a drawing board, in which a scale mounting plate and a protractor are coaxially pivoted to a support plate connected to the carriage, and the protractor can be rotated to an arbitrary rotation angle to the support plate. In a drafting head having a reference line setting means for fixing the scale at an arbitrary angle with respect to the protractor, and an arbitrary angle setting means for fixing the scale mounting plate at an arbitrary angle with respect to the protractor, the drawing head rotates integrally with the protractor. A brake disc is provided, and a brake mechanism for braking the brake disc is provided on each of the support plate and the scale mounting plate, and a base line brake lever for setting a reference line and a base line brake lever for setting an arbitrary angle to the rotation axis of the scale mounting plate. The index lever is loosely fitted, and the baseline brake lever and the brake mechanism provided on the support plate are connected via power transmission mechanisms such as gears or levers, respectively, and the index lever and the brake mechanism provided on the scale mounting plate are connected. A brake device for a drafting head, characterized in that it is connected to a brake mechanism to form a baseline brake mechanism and an arbitrary angle brake mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990041465U JP2504004Y2 (en) | 1990-04-18 | 1990-04-18 | Breaking device for drafting heads |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1990041465U JP2504004Y2 (en) | 1990-04-18 | 1990-04-18 | Breaking device for drafting heads |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04600U true JPH04600U (en) | 1992-01-06 |
| JP2504004Y2 JP2504004Y2 (en) | 1996-07-03 |
Family
ID=31552156
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1990041465U Expired - Lifetime JP2504004Y2 (en) | 1990-04-18 | 1990-04-18 | Breaking device for drafting heads |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2504004Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633753U (en) * | 1979-08-23 | 1981-04-02 | ||
| JPS58158296A (en) * | 1982-02-24 | 1983-09-20 | フランツ・ク−ルマン・プラツイシヨンスメカニク・ウント・マシイネンバウ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・カンパニ−・コマンデツト・ゲゼルシヤフト | Drafting head for drawing instrument |
-
1990
- 1990-04-18 JP JP1990041465U patent/JP2504004Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5633753U (en) * | 1979-08-23 | 1981-04-02 | ||
| JPS58158296A (en) * | 1982-02-24 | 1983-09-20 | フランツ・ク−ルマン・プラツイシヨンスメカニク・ウント・マシイネンバウ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング・ウント・カンパニ−・コマンデツト・ゲゼルシヤフト | Drafting head for drawing instrument |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2504004Y2 (en) | 1996-07-03 |