JPS59181179U - Tractor door hinge structure - Google Patents
Tractor door hinge structureInfo
- Publication number
- JPS59181179U JPS59181179U JP7651083U JP7651083U JPS59181179U JP S59181179 U JPS59181179 U JP S59181179U JP 7651083 U JP7651083 U JP 7651083U JP 7651083 U JP7651083 U JP 7651083U JP S59181179 U JPS59181179 U JP S59181179U
- Authority
- JP
- Japan
- Prior art keywords
- connecting shaft
- hinge piece
- cam follower
- cam
- door
- 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
Landscapes
- Hinge Accessories (AREA)
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
第１図は、本考案を採用した前後進型トラクタの側面図
、第２図は同平面図、第３図はドアのヒンジ構造を示す
斜視図、第４図は同拡大図、第５図はドアヒンジの平面
断面図、第６図は第５図のＶＩ−ＶＩ線断面図、第７図
は第５図の■−■線断面図、第８図は第６図の■矢視図
、第９図はドアの内側面図ぐ第１０図は第９図のＸ−Ｘ
線断面図、第１１図は第９図のＸＩ−ＸＩ線断面図であ
る。
１２・・・ドア、１５・・・ドア側ヒンジ片、１６・・
・車体側ヒンジ片、１７・・・連結軸、２１・・・カム
板、２３・・・支軸、２４・・・アーム、２５・・・カ
ムフォロアー、２６・・・弾性部材（スプリング）、２
８・・・円弧、 ２９・・・曲線、３０・・・凹
部。
２８へ／ ）
Ａ＋１２Figure 1 is a side view of a forward-reverse tractor employing the present invention, Figure 2 is a plan view of the same, Figure 3 is a perspective view showing the door hinge structure, Figure 4 is an enlarged view of the same, and Figure 5. is a plan sectional view of the door hinge, FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5, FIG. 7 is a sectional view taken along the ■-■ line in FIG. Figure 9 is the inside view of the door. Figure 10 is X-X in Figure 9.
11 is a sectional view taken along the line XI-XI of FIG. 9. 12... Door, 15... Door side hinge piece, 16...
- Vehicle body side hinge piece, 17... Connection shaft, 21... Cam plate, 23... Support shaft, 24... Arm, 25... Cam follower, 26... Elastic member (spring), 2
8...Circular arc, 29...Curve, 30...Concave portion. to 28/) A+12
Claims (1)
されたヒンジ片１６とが連結軸１７により回動自在に連
結されたものにおいて、ドア側ヒンジ片１５に外周面を
カム曲面に形成したカム板２１が連結軸１７の軸心と直
交して固定され、車体側ヒンジ片１６に連結軸と平行な
支軸２３回りに回動自在なアーム２４が設けられ、該ア
ーム２４の先端にカムフォロアー２５が支軸２３と平行
に設けられ、該カムフォロアー２５が前記カム曲面に接
当すべくげ勢する弾性部材２６が設けられ、前記カム曲
面は、ドア１２が所定角度開くまではカムフォロアー２
５に対して一定の抵抗となるよう連結軸１７の軸心を中
心とする円弧２８に形成され、それから全開近傍までは
漸次抵抗が増加すべく連結軸１７の軸心から遠ざかる曲
線２９に成形され、かつ全開点においてカムフォロアー
２５を嵌入する凹部３０に形成されていることを特徴と
するトラクタのドアヒンジ構造。A hinge piece 15 rotated on the door 12 side and a hinge piece 16 fixed on the vehicle body side are rotatably connected by a connecting shaft 17, and the outer peripheral surface of the door side hinge piece 15 has a cam curved surface. The formed cam plate 21 is fixed perpendicularly to the axial center of the connecting shaft 17, and an arm 24 that is rotatable around a support shaft 23 parallel to the connecting shaft is provided on the vehicle body side hinge piece 16. A cam follower 25 is provided parallel to the support shaft 23, and an elastic member 26 is provided that urges the cam follower 25 to come into contact with the cam curved surface. cam follower 2
5 is formed into a circular arc 28 centered on the axis of the connecting shaft 17 so as to provide a constant resistance to the connecting shaft 17, and then shaped into a curve 29 that moves away from the axis of the connecting shaft 17 so that the resistance gradually increases until near full opening. , and is formed in a recessed portion 30 into which a cam follower 25 is fitted at a fully open point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7651083U JPS59181179U (en) | 1983-05-20 | 1983-05-20 | Tractor door hinge structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7651083U JPS59181179U (en) | 1983-05-20 | 1983-05-20 | Tractor door hinge structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59181179U true JPS59181179U (en) | 1984-12-03 |
| JPH0240708Y2 JPH0240708Y2 (en) | 1990-10-30 |
Family
ID=30206554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7651083U Granted JPS59181179U (en) | 1983-05-20 | 1983-05-20 | Tractor door hinge structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59181179U (en) |
-
1983
- 1983-05-20 JP JP7651083U patent/JPS59181179U/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0240708Y2 (en) | 1990-10-30 |
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