JPS5536133A - Automatic opening and closing device of rear flapping door for dump car - Google Patents
Automatic opening and closing device of rear flapping door for dump carInfo
- Publication number
- JPS5536133A JPS5536133A JP10781078A JP10781078A JPS5536133A JP S5536133 A JPS5536133 A JP S5536133A JP 10781078 A JP10781078 A JP 10781078A JP 10781078 A JP10781078 A JP 10781078A JP S5536133 A JPS5536133 A JP S5536133A
- Authority
- JP
- Japan
- Prior art keywords
- hooking
- spring
- packing box
- flapping door
- engagement
- 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
- Lock And Its Accessories (AREA)
- Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)
Abstract
PURPOSE: To accurately close a flapping door by hooking the hooking pawl which is freely oscillatingly supported on a packing box side using the push member with a spring and releasing the engagement using the second spring.
CONSTITUTION: When the packing case 2 is dumped backward, the pushing member 8 is lifted by the force of the first spring 12 together with the packing box. Until the nut 15 and the guide cylinder 9 make contact with each other, the working section 6 and the pushing member 8 make contact. The engagement of the hooking pawl 6 and the hooking member 7 are maintained and subsequently the push member 8 and the working section 6 are separated. When the hooking pawl 6 turns counterclockwise by the second spring 14, its engagement against the hooking member 7 is disengaged and the rear flapping door is released. Then, as the packing box 2 is let to fall, the working section 6 makes contact with the push member 8 and the hooking pawl turn clockwise. Also, the hanging section 6' engages with the hooking member and the rear flapping door 5 closes. Then, the push member 8 is let to fall and the packing box 1 is fixed on the frame.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10781078A JPS5926496B2 (en) | 1978-09-01 | 1978-09-01 | Dump truck rear door automatic opening/closing device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10781078A JPS5926496B2 (en) | 1978-09-01 | 1978-09-01 | Dump truck rear door automatic opening/closing device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5536133A true JPS5536133A (en) | 1980-03-13 |
JPS5926496B2 JPS5926496B2 (en) | 1984-06-28 |
Family
ID=14468601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10781078A Expired JPS5926496B2 (en) | 1978-09-01 | 1978-09-01 | Dump truck rear door automatic opening/closing device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5926496B2 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58163369U (en) * | 1982-04-26 | 1983-10-31 | 岐阜車体工業株式会社 | Tailgate fixing device for vehicle loading platform |
US6238167B1 (en) * | 1999-03-19 | 2001-05-29 | Caterpillar S.A.R.L. | Over-center ejector blade lock |
-
1978
- 1978-09-01 JP JP10781078A patent/JPS5926496B2/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS58163369U (en) * | 1982-04-26 | 1983-10-31 | 岐阜車体工業株式会社 | Tailgate fixing device for vehicle loading platform |
US6238167B1 (en) * | 1999-03-19 | 2001-05-29 | Caterpillar S.A.R.L. | Over-center ejector blade lock |
Also Published As
Publication number | Publication date |
---|---|
JPS5926496B2 (en) | 1984-06-28 |
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